예제 #1
0
    # Set header information
    comment = "Created by Michael Reuter"
    # Time needs to be in UTC?
    valid_from = "2016-07-14 00:00:00"

    # Get geometry information file
    inst_name = "CNCS"
    detinfo = readFile(geom_input_file)
    num_dets = len(detinfo.values()[0])
    xml_outfile = inst_name+"_Definition.xml"
 
    det = MantidGeom(inst_name, comment=comment, valid_from=valid_from)
    det.addSnsDefaults()
    det.addComment("SOURCE AND SAMPLE POSITION")
    det.addModerator(-36.262)
    det.addSamplePosition()
    det.addComment("MONITORS")
    det.addMonitors(names=["monitor1", "monitor2", "monitor3"],
                    distance=["-29.949", "-28.706", "-1.416"])

    label = "detectors"
    det.addComponent(label, label)
    doc_handle = det.makeTypeElement(label)
    for i in range(num_dets):
        detname = BANKFMT % (i+1)
        roty = float(detinfo["BankAngle"][i]) + FLIPY
        xpos = convert(detinfo["Bank_xpos"][i])
        ypos = convert(detinfo["Bank_ypos"][i])
        zpos = convert(detinfo["Bank_zpos"][i])
        det.addComponent(detname, root=doc_handle)
        det.addDetector(xpos, ypos, zpos, ROTX, roty, ROTZ, detname, "eightpack")
    return positions

if __name__ == "__main__":
    inst_name = "NOMAD"
    xml_outfile = inst_name+"_Definition.xml"

    # boiler plate stuff
    instr = MantidGeom(inst_name,
                       comment=" Created by Peter Peterson",
                       valid_from="2017-06-05 00:00:01")
    instr.addComment("DEFAULTS")
    instr.addSnsDefaults()
    instr.addComment("SOURCE")
    instr.addModerator(-19.5)
    instr.addComment("SAMPLE")
    instr.addSamplePosition()

    # monitors
    instr.addComment("MONITORS")
    instr.addMonitorIds([-1,-2])
    instr.addMonitors([-0.879475,5.748782], ["monitor1", "monitor2"])
    instr.addComment("Shape for monitors")
    instr.addComment("TODO: Update to real shape")
    instr.addDummyMonitor(0.01, .03)


    # TODO choppers and slits could go here


    ####################
    # read the positions of the pixels that was provided
    authors = ["Peter Peterson", "Malcolm Guthrie", "Chen Zhang"]

    # -- ROOT --
    vulcan_geom = MantidGeom(
        inst_name,
        comment="Created by " + ", ".join(authors),
        valid_from="2022-05-15 00:00:01",
    )

    # -- MISC --
    vulcan_geom.addComment("DEFAULTS")
    vulcan_geom.addSnsDefaults()
    vulcan_geom.addComment("SOURCE")
    vulcan_geom.addModerator(L1)
    vulcan_geom.addComment("SAMPLE")
    vulcan_geom.addSamplePosition()

    # -- MONITOR --
    vulcan_geom.addComment("MONITORS")
    vulcan_geom.addMonitors(distance=[4.83, 1.50],
                            names=["monitor2", "monitor3"])

    # -- ADD BANKS --
    # NOTE:
    # To compensate for the curved (1,2,3,4,6) and flat (5) banks, the actual
    # physical positions is stored at the eight-pack level.
    # The bank here is set to (0,0,0) with zero rotations.
    logging.info(f"Add Banks")
    bank_ids = df["bank"].unique()
    lb_pos = ["X", "Y", "Z"]
if __name__ == '__main__':
    valid_from = '2021-02-01 00:00:00'
    filename = 'MANDI_Definition_{}.xml'.format(valid_from.split()[0])

    # read in the detector calibration
    detcal = DetCal('SNS/MANDI/MaNDi-February2021.DetCal')

    # write the instrument geometry
    instr = MantidGeom('MANDI', valid_from=valid_from)
    instr.addComment('DEFAULTS')
    instr.addSnsDefaults(default_view='spherical_y')

    instr.addComment("SOURCE")
    instr.addModerator(detcal.l1)
    instr.addComment("SAMPLE")
    instr.addSamplePosition()

    instr.addComment("MONITORS")
    instr.addMonitors(distance=[-2.935, -0.898, 1.042],
                      names=["monitor1", 'monitor2', 'monitor3'])

    # add banks here
    for bank in detcal.banks:
        bank.addToXml(instr)

    # shape for detector pixels - ignored by required
    instr.addComment(' Pixel for Detectors')
    delta = 0.000309
    instr.addCuboidPixel("pixel", [-delta, -delta, 0.0], [-delta, delta, 0.0],
                         [-delta, -delta, -0.0001], [delta, -delta, 0.0],
                         shape_id="pixel-shape")
    # Set header information
    comment = "Created by Michael Reuter"
    # Time needs to be in UTC?
    valid_from = "2012-04-04 14:15:46"

    # Get geometry information file

    detinfo = readFile(geom_input_file)
    num_dets = len(detinfo.values()[0])
    xml_outfile = INST_NAME + "_Definition.xml"

    det = MantidGeom(INST_NAME, comment=comment, valid_from=valid_from)
    det.addSnsDefaults()
    det.addComment("SOURCE AND SAMPLE POSITION")
    det.addModerator(-20.0114)
    det.addSamplePosition()
    det.addComment("CHOPPERS")
    det.addChopper("t0-chopper", -10.51)
    det.addVerticalAxisT0Chopper("t0-chopper")
    det.addChopper("fermi-chopper", -2.00180)
    det.addFermiChopper("fermi-chopper")
    det.addComment("MONITORS")
    det.addMonitors(names=["monitor1", "monitor2"],
                    distance=["-1.77808", "8.99184"])

    row_id = ""
    row_id_list = []
    doc_handle = None
    for i in range(num_dets):
        location = detinfo["Location"][i]
        # REMOVE ME: when A and E rows are filled
def tocartesian(r, t, p):
    x = r * sin(t) * cos(p)
    y = r * sin(t) * sin(p)
    z = r * cos(t)
    return [x, y, z]

def mirror(x, y, z):
    r, t, p = topolar(x, y, z)
    r += 2*analyser
    t = pi - t
    p += pi
    return tocartesian(r, t, p)

geometry = MantidGeom(instrument_name, comment=comment, valid_from=valid_from)
geometry.addSnsDefaults(indirect=args.geometrytype != 'N')
geometry.addSamplePosition()
geometry.addModerator(distance=ch12, name="chopper")
geometry.addMonitors(names=["monitor"], distance=[mon], neutronic=args.geometrytype != 'N')
geometry.addDummyMonitor(0.001, 0.001)
geometry.addMonitorIds([0])
geometry.addComponent("single_detectors", "single_detectors")
sds = geometry.makeTypeElement("single_detectors")
sdc = geometry.addComponent("single_pixel", root=sds, blank_location=False)
r = 2*analyser+psd
for i in range(len(SD_azimuths)):
    t=SD_azimuths[i]* pi/180.
    x = - psd * sin(t)
    y = 0.
    z = - psd * cos(t)
    nx, ny, nz = mirror(x, y, z)
    if args.geometrytype == 'N':
def generate_reflection_file(reflection_key):
    r"""

    Parameters
    ----------
    reflection_key: str

    Returns
    -------

    """
    refl = reflections[reflection_key]
    if not os.path.exists(refl['nexus']):
        message = '{} not found. Not creating geometry'.format(refl['nexus'])
        raise FileExistsError(message)
    inst_name = "BASIS"
    # Set header information
    comment = "Created by Michael Reuter and Jose Borreguero"
    # Time needs to be in UTC?
    valid_from = "2014-01-01 00:00:00"

    xml_outfile = '{}_Definition_Si{}.xml'.format(inst_name, reflection_key)
    nfile = h5py.File(refl['nexus'], 'r')

    det = MantidGeom(inst_name, comment=comment, valid_from=valid_from)
    det.addSnsDefaults(indirect=True)
    det.addComment("SOURCE AND SAMPLE POSITION")
    det.addModerator(-84.0)
    det.addSamplePosition()
    det.addComment("MONITORS")
    det.addMonitors(names=["monitor1"], distance=["-0.23368"], neutronic=True)

    # Create the inelastic banks information
    det.addComment('INELASTIC DECTECTORS')
    det.addComponent('silicon')
    handle_silicon = det.makeTypeElement("silicon")
    # Slicer for removing ghosts. Due to the mapping, the ghost tubes sit
    # on the same sides of the arrays for all banks.
    remove_ghosts = slice(-INELASTIC_TUBES_NGHOST)

    for i in range(n_inelastic_banks):
        bank_id = "bank%d" % (i+1)
        pixel_id = nfile["/entry/instrument/bank%d/pixel_id" % (i+1)].value[remove_ghosts]
        distance = nfile["/entry/instrument/bank%d/distance" % (i+1)].value[remove_ghosts]
        # theta or polar_angle: angle from the Z-axis towards the X-axis
        polar_angle = nfile["/entry/instrument/bank%d/polar_angle" % (i+1)].value[remove_ghosts]
        polar_angle *= (180.0/math.pi)
        # phi or azimuthal_angle: angle in the XY-plane
        azimuthal_angle = nfile["/entry/instrument/bank%d/azimuthal_angle" % (i+1)].value[remove_ghosts]
        azimuthal_angle *= (180.0/math.pi)

        analyser_wavelength = nfile["/entry/instrument/analyzer%d/wavelength" % (i+1)].value[remove_ghosts]
        analyser_wavelength *= refl['ratio_to_irreducible_hkl']
        analyser_energy = 81.8042051/analyser_wavelength**2

        det.addComponent(bank_id, idlist=bank_id, root=handle_silicon)

        xbank, ybank, zbank = pixels_physical_xyz(i)
        det.addDetectorPixels(bank_id, x=xbank, y=ybank, z=zbank,
                              names=pixel_id, energy=analyser_energy,
                              nr=distance, ntheta=polar_angle,
                              nphi=azimuthal_angle,
                              output_efixed=refl['efixed'])

        det.addDetectorPixelsIdList(bank_id, r=distance, names=pixel_id,
                                    elg="multiple_ranges")


    # Create the diffraction bank information
    det.addComponent("elastic", "elastic")
    handle = det.makeTypeElement("elastic")

    idlist = []

    detector_z = [-2.1474825, -1.704594, -1.108373, -0.4135165, 0.3181,
                  1.0218315, 1.6330115, 2.0993535, 2.376999]
    detector_x = [1.1649855, 1.7484015, 2.175541, 2.408594, 2.422933,
                  2.216378, 1.8142005, 1.247867, 0.5687435]
    detector_y = [-0.001807, -0.001801, -0.0011845, -0.0006885, -0.0013145,
                  -0.001626, -0.001397, 0.0003465, -0.0001125]

    for i in range(ELASTIC_BANK_START, ELASTIC_BANK_END+1):
        bank_name = "bank%d" % i
        det.addComponent(bank_name, root=handle)

        k = i - ELASTIC_BANK_START

        x_coord = detector_x[k]
        y_coord = detector_y[k]
        z_coord = detector_z[k]

        det.addDetector(x_coord, y_coord, z_coord, 0.0, 0., 90.,
                        bank_name, "tube-elastic", facingSample=True)

        idlist.append(ELASTIC_DETECTORID_START +
                      ELASTIC_TUBE_NPIXELS*(i-ELASTIC_BANK_START))
        idlist.append(ELASTIC_DETECTORID_START +
                      ELASTIC_TUBE_NPIXELS*(i-ELASTIC_BANK_START) +
                      ELASTIC_TUBE_NPIXELS-1)
        idlist.append(None)

    # Diffraction tube information
    det.addComment("ELASTIC TUBE (90 degrees)")
    det.addPixelatedTube("tube-elastic", ELASTIC_TUBE_NPIXELS,
                         ELASTIC_TUBE_LENGTH, "pixel-elastic-tube",
                         neutronic=True, neutronicIsPhysical=True)

    # Set the diffraction pixel Ids
    det.addDetectorIds("elastic", idlist)

    # Creating diffraction pixel
    det.addComment("PIXEL FOR DIFFRACTION TUBES")
    det.addCylinderPixel("pixel-elastic-tube",
                         (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                         (ELASTIC_TUBE_WIDTH/2.0),
                         (ELASTIC_TUBE_LENGTH/ELASTIC_TUBE_NPIXELS))

    det.addComment("PIXEL FOR INELASTIC TUBES")
    det.addCylinderPixel("pixel", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                        INELASTIC_TUBE_WIDTH * (1.0-INELASTIC_PIXEL_RADIUS_GAP_RATIO) / 2.0,
                        INELASTIC_TUBE_LENGTH * (1.0-INELASTIC_PIXEL_HEIGHT_GAP_RATIO) / INELASTIC_TUBE_NPIXEL,
                        is_type="detector", algebra="cyl-approx")

    det.addComment("MONITOR SHAPE")
    det.addComment("FIXME: Do something real here.")
    det.addDummyMonitor(0.01, 0.03)

    det.addComment("MONITOR IDs")
    det.addMonitorIds(["-1"])

    det.writeGeom(xml_outfile)

    # Always clean after yourself
    nfile.close()
예제 #8
0
def main():
    from helper import MantidGeom

    inst_name = "VISION"

    xml_outfile = inst_name + "_Definition.xml"

    det = MantidGeom(inst_name, comment=" Created by Stuart Campbell ")
    det.addSnsDefaults(indirect=True)
    det.addComment("SOURCE AND SAMPLE POSITION")
    det.addModerator(-16.0)
    det.addSamplePosition()

    # Backscattering Banks are 21-100

    BACKSCATTERING_NTUBES = 80

    det.addComponent("elastic-backscattering", "elastic-backscattering")
    handle = det.makeTypeElement("elastic-backscattering")

    idlist = []

    for k in range(BACKSCATTERING_NTUBES):
        id_start = 26624 + (256 * k)
        id_end = 26624 + (256 * k) + 255
        angle = -(2.25 + 4.5 * k)
        bankid = 21 + k
        bank_name = "bank%d" % bankid

        det.addComponent(bank_name, root=handle)

        z_coord = -0.998

        if k % 2 == 0:
            # Even tube number (long)
            centre_offset = BS_ELASTIC_LONG_TUBE_INNER_RADIUS + (
                BS_ELASTIC_LONG_TUBE_LENGTH / 2.0)
            #centre_offset = BS_ELASTIC_LONG_TUBE_INNER_RADIUS
            component_name = "tube-long-bs-elastic"
        else:
            # Odd tube number (short)
            centre_offset = BS_ELASTIC_SHORT_TUBE_INNER_RADIUS + (
                BS_ELASTIC_SHORT_TUBE_LENGTH / 2.0)
            component_name = "tube-short-bs-elastic"

        x_coord = centre_offset * math.cos(math.radians(90 - angle))
        y_coord = centre_offset * math.sin(math.radians(90 - angle))

        det.addDetector(x_coord, y_coord, z_coord, 0, 0, -angle, bank_name,
                        component_name)

        idlist.append(id_start)
        idlist.append(id_end)
        idlist.append(None)

    det.addDetectorIds("elastic-backscattering", idlist)

    # 90 elastic banks

    elastic_banklist = [3, 6, 9, 12, 15, 18]
    elastic_bank_start = [2048, 6144, 10240, 14336, 18432, 22528]
    elastic_angle = [22.5, -22.5, -67.5, -112.5, -157.5, 157.5]

    sample_elastic_distance = 0.635

    det.addComponent("elastic", "elastic")
    handle = det.makeTypeElement("elastic")

    idlist = []
    elastic_index = 0

    for i in elastic_banklist:
        bank_name = "bank%d" % i
        det.addComponent(bank_name, root=handle)

        z_coord = 0.0
        x_coord = sample_elastic_distance * math.cos(
            math.radians(elastic_angle[elastic_index]))
        y_coord = sample_elastic_distance * math.sin(
            math.radians(elastic_angle[elastic_index]))

        det.addDetector(x_coord,
                        y_coord,
                        z_coord,
                        -90.0,
                        0,
                        0.,
                        bank_name,
                        "eightpack-elastic",
                        facingSample=True)

        idlist.append(elastic_bank_start[elastic_index])
        idlist.append(elastic_bank_start[elastic_index] + 2047)
        idlist.append(None)

        elastic_index += 1

    det.addDetectorIds("elastic", idlist)

    # Inelastic
    inelastic_banklist = [1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20]
    inelastic_bank_start = [
        0, 1024, 4096, 5120, 8192, 9216, 12288, 13312, 16384, 17408, 20480,
        21504, 24576, 25600
    ]
    inelastic_angle = [
        45.0, 45.0, 0.0, 0.0, -45.0, -45.0, -90.0, -90.0, -135.0, -135.0,
        180.0, 180.0, 135.0, 135.0
    ]
    inelastic_angle_for_rotation = [
        -45.0, -45.0, 180.0, 180.0, -135.0, -135.0, -90.0, -90.0, -225.0,
        -225.0, 0.0, 0.0, 45.0, 45.0
    ]

    sample_inelastic_distance = 0.5174

    det.addComponent("inelastic", "inelastic")
    handle = det.makeTypeElement("inelastic")

    idlist = []
    inelastic_index = 0

    for i in inelastic_banklist:
        bank_name = "bank%d" % i
        bank_comp = det.addComponent(bank_name,
                                     root=handle,
                                     blank_location=True)
        #        location_element = le.SubElement(bank_comp, "location")
        #        le.SubElement(location_element, "rot", **{"val":"90", "axis-x":"0",
        #                                              "axis-y":"0", "axis-z":"1"})

        # Neutronic Positions
        z_coord_neutronic = sample_inelastic_distance * math.tan(
            math.radians(45.0))

        if inelastic_index % 2 == 0:
            # Facing Downstream
            z_coord = 0.01
        else:
            # Facing to Moderator
            z_coord = -0.01
            z_coord_neutronic = -z_coord_neutronic

            # Physical Positions
        x_coord = sample_inelastic_distance * math.cos(
            math.radians(inelastic_angle[inelastic_index]))
        y_coord = sample_inelastic_distance * math.sin(
            math.radians(inelastic_angle[inelastic_index]))

        det.addDetector(-x_coord,
                        y_coord,
                        z_coord,
                        0,
                        0,
                        inelastic_angle_for_rotation[inelastic_index] - 90.0,
                        bank_name,
                        "eightpack-inelastic",
                        neutronic=True,
                        nx=-x_coord,
                        ny=y_coord,
                        nz=z_coord_neutronic)

        efixed = ("Efixed", "3.64", "meV")
        det.addDetectorParameters(bank_name, efixed)

        idlist.append(inelastic_bank_start[inelastic_index])
        idlist.append(inelastic_bank_start[inelastic_index] + 1023)
        idlist.append(None)

        inelastic_index += 1

    det.addDetectorIds("inelastic", idlist)

    # 8 packs

    det.addComment("INELASTIC 8-PACK")
    det.addNPack("eightpack-inelastic",
                 INELASTIC_TUBES_PER_BANK,
                 INELASTIC_TUBE_WIDTH,
                 INELASTIC_AIR_GAP,
                 "tube-inelastic",
                 neutronic=True)

    det.addComment("ELASTIC 8-PACK")
    det.addNPack("eightpack-elastic",
                 ELASTIC_TUBES_PER_BANK,
                 ELASTIC_TUBE_WIDTH,
                 ELASTIC_AIR_GAP,
                 "tube-elastic",
                 neutronic=True,
                 neutronicIsPhysical=True)

    # TUBES
    det.addComment("INELASTIC TUBE")
    det.addPixelatedTube("tube-inelastic",
                         INELASTIC_TUBE_NPIXELS,
                         INELASTIC_TUBE_LENGTH,
                         "pixel-inelastic-tube",
                         neutronic=True)

    det.addComment("BACKSCATTERING LONG TUBE")
    det.addPixelatedTube("tube-long-bs-elastic",
                         BS_ELASTIC_LONG_TUBE_NPIXELS,
                         BS_ELASTIC_LONG_TUBE_LENGTH,
                         "pixel-bs-elastic-long-tube",
                         neutronic=True,
                         neutronicIsPhysical=True)
    det.addComment("BACKSCATTERING SHORT TUBE")
    det.addPixelatedTube("tube-short-bs-elastic",
                         BS_ELASTIC_SHORT_TUBE_NPIXELS,
                         BS_ELASTIC_SHORT_TUBE_LENGTH,
                         "pixel-bs-elastic-short-tube",
                         neutronic=True,
                         neutronicIsPhysical=True)

    det.addComment("ELASTIC TUBE (90 degrees)")
    det.addPixelatedTube("tube-elastic",
                         ELASTIC_TUBE_NPIXELS,
                         ELASTIC_TUBE_LENGTH,
                         "pixel-elastic-tube",
                         neutronic=True,
                         neutronicIsPhysical=True)

    # PIXELS

    det.addComment("PIXEL FOR INELASTIC TUBES")
    det.addCylinderPixel("pixel-inelastic-tube", (0.0, 0.0, 0.0),
                         (0.0, 1.0, 0.0), (INELASTIC_TUBE_WIDTH / 2.0),
                         (INELASTIC_TUBE_LENGTH / INELASTIC_TUBE_NPIXELS))

    det.addComment("PIXEL FOR BACKSCATTERING ELASTIC TUBES (LONG)")
    det.addCylinderPixel(
        "pixel-bs-elastic-long-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
        (BS_ELASTIC_LONG_TUBE_WIDTH / 2.0),
        (BS_ELASTIC_LONG_TUBE_LENGTH / BS_ELASTIC_LONG_TUBE_NPIXELS))

    det.addComment("PIXEL FOR BACKSCATTERING ELASTIC TUBES (SHORT)")
    det.addCylinderPixel(
        "pixel-bs-elastic-short-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
        (BS_ELASTIC_SHORT_TUBE_WIDTH / 2.0),
        (BS_ELASTIC_SHORT_TUBE_LENGTH / BS_ELASTIC_SHORT_TUBE_NPIXELS))

    det.addComment("PIXEL FOR ELASTIC TUBES (90 degrees)")
    det.addCylinderPixel("pixel-elastic-tube", (0.0, 0.0, 0.0),
                         (0.0, 1.0, 0.0), (ELASTIC_TUBE_WIDTH / 2.0),
                         (ELASTIC_TUBE_LENGTH / ELASTIC_TUBE_NPIXELS))

    det.addComment(" ##### MONITORS ##### ")
    det.addMonitors(names=["monitor1"], distance=["-6.71625"], neutronic=True)

    # MONITORS

    det.addComment("MONITOR SHAPE")
    det.addComment("FIXME: Do something real here.")
    det.addDummyMonitor(0.01, 0.03)

    det.addComment("MONITOR IDs")
    det.addMonitorIds(["-1"])

    det.showGeom()
    det.writeGeom(xml_outfile)
tube_width = 0.685
tube_radius = 0.0127
number_of_tubes = 8

tube_angles = [12, 31, 50, 69, 88, 107, 126, 145]
vertical_offset = 0.015
distance_to_sample = 1.855

chopper_to_sample = -34.3
monitor_to_sample = -0.178

in16b = MantidGeom(instrument_name, comment=comment, valid_from=valid_from)
in16b.addSnsDefaults(default_view='3D', axis_view_3d='z-', theta_sign_axis="x")

in16b.addComment("Sample position")
in16b.addSamplePosition()

in16b.addComment("Chopper position")
in16b.addModerator(distance=chopper_to_sample, name="chopper")

in16b.addComment("MONITOR")
in16b.addMonitors(names=["monitor"], distance=[monitor_to_sample])
in16b.addDummyMonitor(0.001, 0.001)
in16b.addMonitorIds([0])

in16b.addComment("Detector")
in16b.addComponentILL("detector", 0, 0, 0)
detector = in16b.makeTypeElement("detector")

# create tubes id lists
for i in range(number_of_tubes):
예제 #10
0
def generate_reflection_file(reflection_key):
    r"""

    Parameters
    ----------
    reflection_key: str

    Returns
    -------

    """
    refl = reflections[reflection_key]
    if not os.path.exists(refl['nexus']):
        message = '{} not found. Not creating geometry'.format(refl['nexus'])
        raise FileExistsError(message)
    inst_name = "BASIS"
    # Set header information
    comment = "Created by Michael Reuter and Jose Borreguero"
    # Time needs to be in UTC?
    valid_from = "2014-01-01 00:00:00"

    xml_outfile = '{}_Definition_Si{}.xml'.format(inst_name, reflection_key)
    nfile = h5py.File(refl['nexus'], 'r')

    det = MantidGeom(inst_name, comment=comment, valid_from=valid_from)
    det.addSnsDefaults(indirect=True)
    det.addComment("SOURCE AND SAMPLE POSITION")
    det.addModerator(-84.0)
    det.addSamplePosition()
    det.addComment("MONITORS")
    det.addMonitors(names=["monitor1"], distance=["-0.23368"], neutronic=True)

    # Create the inelastic banks information
    det.addComment('INELASTIC DECTECTORS')
    det.addComponent('silicon')
    handle_silicon = det.makeTypeElement("silicon")
    # Slicer for removing ghosts. Due to the mapping, the ghost tubes sit
    # on the same sides of the arrays for all banks.
    remove_ghosts = slice(-INELASTIC_TUBES_NGHOST)

    for i in range(n_inelastic_banks):
        bank_id = "bank%d" % (i + 1)
        pixel_id = nfile["/entry/instrument/bank%d/pixel_id" %
                         (i + 1)].value[remove_ghosts]
        distance = nfile["/entry/instrument/bank%d/distance" %
                         (i + 1)].value[remove_ghosts]
        # theta or polar_angle: angle from the Z-axis towards the X-axis
        polar_angle = nfile["/entry/instrument/bank%d/polar_angle" %
                            (i + 1)].value[remove_ghosts]
        polar_angle *= (180.0 / math.pi)
        # phi or azimuthal_angle: angle in the XY-plane
        azimuthal_angle = nfile["/entry/instrument/bank%d/azimuthal_angle" %
                                (i + 1)].value[remove_ghosts]
        azimuthal_angle *= (180.0 / math.pi)

        analyser_wavelength = nfile["/entry/instrument/analyzer%d/wavelength" %
                                    (i + 1)].value[remove_ghosts]
        analyser_wavelength *= refl['ratio_to_irreducible_hkl']
        analyser_energy = 81.8042051 / analyser_wavelength**2

        det.addComponent(bank_id, idlist=bank_id, root=handle_silicon)

        xbank, ybank, zbank = pixels_physical_xyz(i)
        det.addDetectorPixels(bank_id,
                              x=xbank,
                              y=ybank,
                              z=zbank,
                              names=pixel_id,
                              energy=analyser_energy,
                              nr=distance,
                              ntheta=polar_angle,
                              nphi=azimuthal_angle,
                              output_efixed=refl['efixed'])

        det.addDetectorPixelsIdList(bank_id,
                                    r=distance,
                                    names=pixel_id,
                                    elg="multiple_ranges")

    # Create the diffraction bank information
    det.addComponent("elastic", "elastic")
    handle = det.makeTypeElement("elastic")

    idlist = []

    detector_z = [
        -2.1474825, -1.704594, -1.108373, -0.4135165, 0.3181, 1.0218315,
        1.6330115, 2.0993535, 2.376999
    ]
    detector_x = [
        1.1649855, 1.7484015, 2.175541, 2.408594, 2.422933, 2.216378,
        1.8142005, 1.247867, 0.5687435
    ]
    detector_y = [
        -0.001807, -0.001801, -0.0011845, -0.0006885, -0.0013145, -0.001626,
        -0.001397, 0.0003465, -0.0001125
    ]

    for i in range(ELASTIC_BANK_START, ELASTIC_BANK_END + 1):
        bank_name = "bank%d" % i
        det.addComponent(bank_name, root=handle)

        k = i - ELASTIC_BANK_START

        x_coord = detector_x[k]
        y_coord = detector_y[k]
        z_coord = detector_z[k]

        det.addDetector(x_coord,
                        y_coord,
                        z_coord,
                        0.0,
                        0.,
                        90.,
                        bank_name,
                        "tube-elastic",
                        facingSample=True)

        idlist.append(ELASTIC_DETECTORID_START + ELASTIC_TUBE_NPIXELS *
                      (i - ELASTIC_BANK_START))
        idlist.append(ELASTIC_DETECTORID_START + ELASTIC_TUBE_NPIXELS *
                      (i - ELASTIC_BANK_START) + ELASTIC_TUBE_NPIXELS - 1)
        idlist.append(None)

    # Diffraction tube information
    det.addComment("ELASTIC TUBE (90 degrees)")
    det.addPixelatedTube("tube-elastic",
                         ELASTIC_TUBE_NPIXELS,
                         ELASTIC_TUBE_LENGTH,
                         "pixel-elastic-tube",
                         neutronic=True,
                         neutronicIsPhysical=True)

    # Set the diffraction pixel Ids
    det.addDetectorIds("elastic", idlist)

    # Creating diffraction pixel
    det.addComment("PIXEL FOR DIFFRACTION TUBES")
    det.addCylinderPixel("pixel-elastic-tube", (0.0, 0.0, 0.0),
                         (0.0, 1.0, 0.0), (ELASTIC_TUBE_WIDTH / 2.0),
                         (ELASTIC_TUBE_LENGTH / ELASTIC_TUBE_NPIXELS))

    det.addComment("PIXEL FOR INELASTIC TUBES")
    det.addCylinderPixel(
        "pixel", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
        INELASTIC_TUBE_WIDTH * (1.0 - INELASTIC_PIXEL_RADIUS_GAP_RATIO) / 2.0,
        INELASTIC_TUBE_LENGTH * (1.0 - INELASTIC_PIXEL_HEIGHT_GAP_RATIO) /
        INELASTIC_TUBE_NPIXEL,
        is_type="detector",
        algebra="cyl-approx")

    det.addComment("MONITOR SHAPE")
    det.addComment("FIXME: Do something real here.")
    det.addDummyMonitor(0.01, 0.03)

    det.addComment("MONITOR IDs")
    det.addMonitorIds(["-1"])

    det.writeGeom(xml_outfile)

    # Always clean after yourself
    nfile.close()
def main():
    from helper import MantidGeom
    
    inst_name = "VISION"
    
    xml_outfile = inst_name+"_Definition.xml"
    
    comment = " Created by Stuart Campbell "
    valid_from = "2013-10-21 00:00:01"
    
    det = MantidGeom(inst_name, comment=comment, valid_from=valid_from)
    det.addSnsDefaults(indirect=True)
    det.addComment("SOURCE AND SAMPLE POSITION")
    det.addModerator(-16.0)
    det.addSamplePosition()


    # Backscattering Banks are 21-100

    BACKSCATTERING_NTUBES = 80
    BACKSCATTERING_SECTORS = 10
    TUBES_PER_SECTOR = BACKSCATTERING_NTUBES / BACKSCATTERING_SECTORS
    PIXELS_PER_SECTOR = TUBES_PER_SECTOR * 256

    det.addComponent("elastic-backscattering", "elastic-backscattering")
    handle = det.makeTypeElement("elastic-backscattering")

    idlist = []

    for k in range(BACKSCATTERING_SECTORS):
	bankid = 15 + k
	bank_name = "bank%d" % bankid

	#doc_handle = det.makeDetectorElement(bank_name, root=handle)
	
	z_coord = -0.998

	id_start = 14336 + (PIXELS_PER_SECTOR * k)
	id_end = 14336 + (PIXELS_PER_SECTOR * k) + PIXELS_PER_SECTOR - 1


	for l in range(TUBES_PER_SECTOR):


		tube_index = (k*TUBES_PER_SECTOR) + l
		tube_name = bank_name + "-tube" + str(tube_index+1)		

		#det.addComponent(tube_name, root=doc_handle)
		det.addComponent(tube_name, root=handle)

	        angle = -(2.25 + 4.5*tube_index)
        		
        	if tube_index%2 == 0:
            		# Even tube number (long)
            		centre_offset = BS_ELASTIC_LONG_TUBE_INNER_RADIUS + (BS_ELASTIC_LONG_TUBE_LENGTH/2.0)
            		#centre_offset = BS_ELASTIC_LONG_TUBE_INNER_RADIUS
            		component_name = "tube-long-bs-elastic"
        	else:
            		# Odd tube number (short)
            		centre_offset = BS_ELASTIC_SHORT_TUBE_INNER_RADIUS + (BS_ELASTIC_SHORT_TUBE_LENGTH/2.0)
        		component_name = "tube-short-bs-elastic"

        	x_coord = centre_offset * math.cos(math.radians(90-angle))
        	y_coord = centre_offset * math.sin(math.radians(90-angle))

		det.addDetector( x_coord, y_coord, z_coord, 0, 0, -angle, tube_name, component_name)


        idlist.append(id_start)
        idlist.append(id_end)
        idlist.append(None)

    det.addDetectorIds("elastic-backscattering", idlist)


    # 90 elastic banks

    elastic_banklist = [25,26,27,28,29,30]
    elastic_bank_start = [34816,36864,38912,40960,43008,45056]
    elastic_angle = [157.5,-157.5,-67.5,-112.5,-22.5,22.5]


    sample_elastic_distance = 0.635

    det.addComponent("elastic", "elastic")
    handle = det.makeTypeElement("elastic")

    idlist = []
    elastic_index = 0

    for i in elastic_banklist:
        bank_name = "bank%d" % i
        det.addComponent(bank_name, root=handle)

        z_coord = 0.0
        x_coord = sample_elastic_distance * math.cos(math.radians(elastic_angle[elastic_index]))
        y_coord = sample_elastic_distance * math.sin(math.radians(elastic_angle[elastic_index]))

        det.addDetector(x_coord, y_coord, z_coord, -90.0, 180, 0., bank_name, "eightpack-elastic", facingSample=True)

        idlist.append(elastic_bank_start[elastic_index])
        idlist.append(elastic_bank_start[elastic_index]+2047)
        idlist.append(None)

        elastic_index += 1


    det.addDetectorIds("elastic", idlist)

    # Inelastic
    inelastic_banklist = [1,2,3,4,5,6,7,8,9,10,11,12,13,14]
    inelastic_bank_start=[0,1024,2048,3072,4096,5120,6144,7168,8192,9216,10240,11264,12288,13312]
    inelastic_angle = [45.0,0.0,-45.0,-90.0,-135.0,-180.0,135.0,45.0,0.0,-45.0,-90.0,-135.0,-180.0,135.0]
    inelastic_angle_for_rotation = [-45.0,180.0,-135.0,-90.0,-225.0,0.0,45.0,-45.0,180.0,-135.0,-90.0,-225.0,0.0,45.0]

    sample_inelastic_distance = 0.5174

    det.addComponent("inelastic", "inelastic")
    handle = det.makeTypeElement("inelastic")

    idlist = []
    inelastic_index = 0

    for i in inelastic_banklist:
        bank_name = "bank%d" % i
        bank_comp = det.addComponent(bank_name, root=handle, blank_location=True)
#        location_element = le.SubElement(bank_comp, "location")
#        le.SubElement(location_element, "rot", **{"val":"90", "axis-x":"0",
#                                              "axis-y":"0", "axis-z":"1"})

        # Neutronic Positions
        z_coord_neutronic = sample_inelastic_distance * math.tan(math.radians(45.0))

        if inelastic_index+1 > 7:
            # Facing Downstream
            z_coord = -0.01
        else:
            # Facing to Moderator
            z_coord = 0.01
            z_coord_neutronic = -z_coord_neutronic

            # Physical Positions
        x_coord = sample_inelastic_distance * math.cos(math.radians(inelastic_angle[inelastic_index]))
        y_coord = sample_inelastic_distance * math.sin(math.radians(inelastic_angle[inelastic_index]))

        det.addDetector(-x_coord, y_coord, z_coord, 0, 0, inelastic_angle_for_rotation[inelastic_index]-90.0, bank_name,
            "eightpack-inelastic", neutronic=True, nx=-x_coord, ny=y_coord, nz=z_coord_neutronic)

        efixed = ("Efixed", "3.64", "meV")
        det.addDetectorParameters(bank_name, efixed )

        idlist.append(inelastic_bank_start[inelastic_index])
        idlist.append(inelastic_bank_start[inelastic_index]+1023)
        idlist.append(None)

        inelastic_index += 1


    det.addDetectorIds("inelastic", idlist)


    # 8 packs
    
    det.addComment("INELASTIC 8-PACK")
    det.addNPack("eightpack-inelastic", INELASTIC_TUBES_PER_BANK, INELASTIC_TUBE_WIDTH, 
                 INELASTIC_AIR_GAP, "tube-inelastic", neutronic=True)
    
    det.addComment("ELASTIC 8-PACK")
    det.addNPack("eightpack-elastic", ELASTIC_TUBES_PER_BANK, ELASTIC_TUBE_WIDTH, 
                 ELASTIC_AIR_GAP, "tube-elastic", neutronic=True, neutronicIsPhysical=True)
 
    # TUBES
    det.addComment("INELASTIC TUBE")
    det.addPixelatedTube("tube-inelastic", INELASTIC_TUBE_NPIXELS, 
                         INELASTIC_TUBE_LENGTH, "pixel-inelastic-tube", neutronic=True)
    
    det.addComment("BACKSCATTERING LONG TUBE")
    det.addPixelatedTube("tube-long-bs-elastic", BS_ELASTIC_LONG_TUBE_NPIXELS,
        BS_ELASTIC_LONG_TUBE_LENGTH, "pixel-bs-elastic-long-tube",
        neutronic=True, neutronicIsPhysical=True)
    det.addComment("BACKSCATTERING SHORT TUBE")
    det.addPixelatedTube("tube-short-bs-elastic", BS_ELASTIC_SHORT_TUBE_NPIXELS, 
        BS_ELASTIC_SHORT_TUBE_LENGTH, "pixel-bs-elastic-short-tube",
        neutronic=True, neutronicIsPhysical=True)

    det.addComment("ELASTIC TUBE (90 degrees)")
    det.addPixelatedTube("tube-elastic", ELASTIC_TUBE_NPIXELS, 
                         ELASTIC_TUBE_LENGTH, "pixel-elastic-tube", neutronic=True, neutronicIsPhysical=True)

    # PIXELS
    
    det.addComment("PIXEL FOR INELASTIC TUBES")
    det.addCylinderPixel("pixel-inelastic-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                        (INELASTIC_TUBE_WIDTH/2.0),
                        (INELASTIC_TUBE_LENGTH/INELASTIC_TUBE_NPIXELS))
    
    det.addComment("PIXEL FOR BACKSCATTERING ELASTIC TUBES (LONG)")
    det.addCylinderPixel("pixel-bs-elastic-long-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0), 
                         (BS_ELASTIC_LONG_TUBE_WIDTH/2.0), 
                         (BS_ELASTIC_LONG_TUBE_LENGTH/BS_ELASTIC_LONG_TUBE_NPIXELS))

    det.addComment("PIXEL FOR BACKSCATTERING ELASTIC TUBES (SHORT)")
    det.addCylinderPixel("pixel-bs-elastic-short-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                         (BS_ELASTIC_SHORT_TUBE_WIDTH/2.0), 
                         (BS_ELASTIC_SHORT_TUBE_LENGTH/BS_ELASTIC_SHORT_TUBE_NPIXELS))
    
    det.addComment("PIXEL FOR ELASTIC TUBES (90 degrees)")
    det.addCylinderPixel("pixel-elastic-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                         (ELASTIC_TUBE_WIDTH/2.0), 
                         (ELASTIC_TUBE_LENGTH/ELASTIC_TUBE_NPIXELS))

    det.addComment(" ##### MONITORS ##### ")
    det.addMonitors(names=["monitor1","monitor4"], distance=["-6.71625","0.287"], neutronic=True)

    # MONITORS

    det.addComment("MONITOR SHAPE")
    det.addComment("FIXME: All monitors share the dimensions of monitor4.")

    det.addCuboidMonitor(0.051,0.054,0.013)

    det.addComment("MONITOR IDs")
	
    det.addMonitorIds(["-1","-4"])

    #det.showGeom()
    det.writeGeom(xml_outfile)
예제 #12
0
def mirror(x, y, z, analyser, project=False):
    r, t, p = topolar(x, y, z)
    if project:
        p = pi
        t = pi - atan2(x, z)
        r += 2 * analyser - psd
    else:
        p += pi
        t = pi - t
        r += 2 * analyser
    return tocartesian(r, t, p)


geometry = MantidGeom(instrument_name, comment=comment, valid_from=valid_from)
geometry.addSnsDefaults(indirect=args.geometrytype != 'N')
geometry.addSamplePosition()
geometry.addModerator(distance=ch12, name="chopper")
geometry.addMonitors(names=["monitor"],
                     distance=[mon],
                     neutronic=args.geometrytype != 'N')
geometry.addDummyMonitor(0.001, 0.001)
geometry.addMonitorIds([0])
geometry.addComponent("single_detectors",
                      "single_detectors",
                      blank_location=False)
sds = geometry.makeTypeElement("single_detectors")
sdc = geometry.addComponent("single_pixel", root=sds)
for i in range(len(SD_azimuths)):
    t = SD_azimuths[i] * pi / 180.
    x = sd * sin(t)
    y = 0.
예제 #13
0
def main():
    from helper import MantidGeom
    
    inst_name = "VISION"
    
    xml_outfile = inst_name+"_Definition.xml"
    
    det = MantidGeom(inst_name, comment=" Created by Stuart Campbell ")
    det.addSnsDefaults(indirect=True)
    det.addComment("SOURCE AND SAMPLE POSITION")
    det.addModerator(-16.0)
    det.addSamplePosition()

    # Backscattering Banks are 21-100

    BACKSCATTERING_NTUBES = 80

    det.addComponent("elastic-backscattering", "elastic-backscattering")
    handle = det.makeTypeElement("elastic-backscattering")

    idlist = []

    for k in range(BACKSCATTERING_NTUBES):
        id_start = 26624+(256*k)
        id_end = 26624 + (256*k) + 255
        angle = -(2.25 + 4.5*k)
        bankid = 21 + k
        bank_name = "bank%d" % bankid

        det.addComponent(bank_name, root=handle)

        z_coord = -0.998

        if k%2 == 0:
            # Even tube number (long)
            centre_offset = BS_ELASTIC_LONG_TUBE_INNER_RADIUS + (BS_ELASTIC_LONG_TUBE_LENGTH/2.0)
            #centre_offset = BS_ELASTIC_LONG_TUBE_INNER_RADIUS
            component_name = "tube-long-bs-elastic"
        else:
            # Odd tube number (short)
            centre_offset = BS_ELASTIC_SHORT_TUBE_INNER_RADIUS + (BS_ELASTIC_SHORT_TUBE_LENGTH/2.0)
            component_name = "tube-short-bs-elastic"

        x_coord = centre_offset * math.cos(math.radians(90-angle))
        y_coord = centre_offset * math.sin(math.radians(90-angle))

        det.addDetector(x_coord, y_coord, z_coord, 0, 0, -angle, bank_name, component_name)

        idlist.append(id_start)
        idlist.append(id_end)
        idlist.append(None)

    det.addDetectorIds("elastic-backscattering", idlist)


    # 90 elastic banks

    elastic_banklist = [3,6,9,12,15,18]
    elastic_bank_start = [2048,6144,10240,14336,18432,22528]
    elastic_angle = [22.5,-22.5,-67.5,-112.5,-157.5,157.5]

    sample_elastic_distance = 0.635

    det.addComponent("elastic", "elastic")
    handle = det.makeTypeElement("elastic")

    idlist = []
    elastic_index = 0

    for i in elastic_banklist:
        bank_name = "bank%d" % i
        det.addComponent(bank_name, root=handle)

        z_coord = 0.0
        x_coord = sample_elastic_distance * math.cos(math.radians(elastic_angle[elastic_index]))
        y_coord = sample_elastic_distance * math.sin(math.radians(elastic_angle[elastic_index]))

        det.addDetector(x_coord, y_coord, z_coord, -90.0, 0, 0., bank_name, "eightpack-elastic", facingSample=True)

        idlist.append(elastic_bank_start[elastic_index])
        idlist.append(elastic_bank_start[elastic_index]+2047)
        idlist.append(None)

        elastic_index += 1


    det.addDetectorIds("elastic", idlist)

    # Inelastic
    inelastic_banklist = [1,2,4,5,7,8,10,11,13,14,16,17,19,20]
    inelastic_bank_start=[0,1024,4096,5120,8192,9216,12288,13312,16384,17408,20480,21504,24576,25600]
    inelastic_angle = [45.0,45.0,0.0,0.0,-45.0,-45.0,-90.0,-90.0,-135.0,-135.0,180.0,180.0,135.0,135.0]
    inelastic_angle_for_rotation = [-45.0,-45.0,180.0,180.0,-135.0,-135.0,-90.0,-90.0,-225.0,-225.0,0.0,0.0,45.0,45.0]

    sample_inelastic_distance = 0.5174

    det.addComponent("inelastic", "inelastic")
    handle = det.makeTypeElement("inelastic")

    idlist = []
    inelastic_index = 0

    for i in inelastic_banklist:
        bank_name = "bank%d" % i
        bank_comp = det.addComponent(bank_name, root=handle, blank_location=True)
#        location_element = le.SubElement(bank_comp, "location")
#        le.SubElement(location_element, "rot", **{"val":"90", "axis-x":"0",
#                                              "axis-y":"0", "axis-z":"1"})

        # Neutronic Positions
        z_coord_neutronic = sample_inelastic_distance * math.tan(math.radians(45.0))

        if inelastic_index % 2 == 0:
            # Facing Downstream
            z_coord = 0.01
        else:
            # Facing to Moderator
            z_coord = -0.01
            z_coord_neutronic = -z_coord_neutronic

            # Physical Positions
        x_coord = sample_inelastic_distance * math.cos(math.radians(inelastic_angle[inelastic_index]))
        y_coord = sample_inelastic_distance * math.sin(math.radians(inelastic_angle[inelastic_index]))

        det.addDetector(-x_coord, y_coord, z_coord, 0, 0, inelastic_angle_for_rotation[inelastic_index]-90.0, bank_name,
            "eightpack-inelastic", neutronic=True, nx=-x_coord, ny=y_coord, nz=z_coord_neutronic)

        efixed = ("Efixed", "3.64", "meV")
        det.addDetectorParameters(bank_name, efixed )

        idlist.append(inelastic_bank_start[inelastic_index])
        idlist.append(inelastic_bank_start[inelastic_index]+1023)
        idlist.append(None)

        inelastic_index += 1


    det.addDetectorIds("inelastic", idlist)


    # 8 packs
    
    det.addComment("INELASTIC 8-PACK")
    det.addNPack("eightpack-inelastic", INELASTIC_TUBES_PER_BANK, INELASTIC_TUBE_WIDTH, 
                 INELASTIC_AIR_GAP, "tube-inelastic", neutronic=True)
    
    det.addComment("ELASTIC 8-PACK")
    det.addNPack("eightpack-elastic", ELASTIC_TUBES_PER_BANK, ELASTIC_TUBE_WIDTH, 
                 ELASTIC_AIR_GAP, "tube-elastic", neutronic=True, neutronicIsPhysical=True)
 
    # TUBES
    det.addComment("INELASTIC TUBE")
    det.addPixelatedTube("tube-inelastic", INELASTIC_TUBE_NPIXELS, 
                         INELASTIC_TUBE_LENGTH, "pixel-inelastic-tube", neutronic=True)
    
    det.addComment("BACKSCATTERING LONG TUBE")
    det.addPixelatedTube("tube-long-bs-elastic", BS_ELASTIC_LONG_TUBE_NPIXELS,
        BS_ELASTIC_LONG_TUBE_LENGTH, "pixel-bs-elastic-long-tube",
        neutronic=True, neutronicIsPhysical=True)
    det.addComment("BACKSCATTERING SHORT TUBE")
    det.addPixelatedTube("tube-short-bs-elastic", BS_ELASTIC_SHORT_TUBE_NPIXELS, 
        BS_ELASTIC_SHORT_TUBE_LENGTH, "pixel-bs-elastic-short-tube",
        neutronic=True, neutronicIsPhysical=True)

    det.addComment("ELASTIC TUBE (90 degrees)")
    det.addPixelatedTube("tube-elastic", ELASTIC_TUBE_NPIXELS, 
                         ELASTIC_TUBE_LENGTH, "pixel-elastic-tube", neutronic=True, neutronicIsPhysical=True)

    # PIXELS
    
    det.addComment("PIXEL FOR INELASTIC TUBES")
    det.addCylinderPixel("pixel-inelastic-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                         (INELASTIC_TUBE_WIDTH/2.0), 
                         (INELASTIC_TUBE_LENGTH/INELASTIC_TUBE_NPIXELS))
    
    det.addComment("PIXEL FOR BACKSCATTERING ELASTIC TUBES (LONG)")
    det.addCylinderPixel("pixel-bs-elastic-long-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0), 
                         (BS_ELASTIC_LONG_TUBE_WIDTH/2.0), 
                         (BS_ELASTIC_LONG_TUBE_LENGTH/BS_ELASTIC_LONG_TUBE_NPIXELS))

    det.addComment("PIXEL FOR BACKSCATTERING ELASTIC TUBES (SHORT)")
    det.addCylinderPixel("pixel-bs-elastic-short-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                         (BS_ELASTIC_SHORT_TUBE_WIDTH/2.0), 
                         (BS_ELASTIC_SHORT_TUBE_LENGTH/BS_ELASTIC_SHORT_TUBE_NPIXELS))
    
    det.addComment("PIXEL FOR ELASTIC TUBES (90 degrees)")
    det.addCylinderPixel("pixel-elastic-tube", (0.0, 0.0, 0.0), (0.0, 1.0, 0.0),
                         (ELASTIC_TUBE_WIDTH/2.0), 
                         (ELASTIC_TUBE_LENGTH/ELASTIC_TUBE_NPIXELS))


    det.addComment(" ##### MONITORS ##### ")
    det.addMonitors(names=["monitor1"], distance=["-6.71625"], neutronic=True)

    # MONITORS

    det.addComment("MONITOR SHAPE")
    det.addComment("FIXME: Do something real here.")
    det.addDummyMonitor(0.01, 0.03)

    det.addComment("MONITOR IDs")
    det.addMonitorIds(["-1"])


    det.showGeom()
    det.writeGeom(xml_outfile)