コード例 #1
0
def Example_list():
    from pySRU.ElectronBeam import ElectronBeam

    beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
    ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)

    X = np.linspace(0.0, 0.0002, 1001)
    Y = np.linspace(0.0, 0.0002, 1001)
    simulation_test = create_simulation(magnetic_structure=ESRF18,
                                        electron_beam=beam_ESRF,
                                        X=X,
                                        Y=Y,
                                        XY_are_list=True)

    simulation_test.print_parameters()

    simulation_test.trajectory.plot_3D()

    simulation_test.radiation.plot()

    simulation_test.calculate_on_ring_number(ring_number_max=2)

    simulation_test.radiation.plot()

    simulation_test.radiation.plot_ring()

    observation_angle = np.linspace(
        0.0, simulation_test.source.angle_ring_number(1, 2), 51)

    # TODO verifier quelle marche bien
    simulation_test.calculate_for_observation_angles(
        XY_are_list=True, observation_angle=observation_angle)

    simulation_test.radiation.plot()
コード例 #2
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    def test_create_trajectory(self):

        # test le trajectoire ana lytic (des valeurs special
        # le Beta doit est constant pour certaine methode
        # les produi scalaire de l'acc avec la vitesse est ...
        # difference max entre deux trajectoire

        K = 1.87
        lambda_u = 0.035
        L = 0.035 * 14
        E = 1.3
        I = 1.0
        undulator = Undulator(K=K, period_length=lambda_u, length=L)
        beam = ElectronBeam(Electron_energy=E, I_current=I)
        source = SourceUndulatorPlane(undulator=undulator, electron_beam=beam)

        fact_test = TrajectoryFactory(Nb_pts=201, method=TRAJECTORY_METHOD_ODE)
        traj_test = fact_test.create_from_source(source=source)

        self.assertFalse(fact_test.initial_condition is None)

        self.assertTrue(
            all(fact_test.initial_condition ==
                source.choose_initial_contidion_automatic()))
        self.assertTrue(fact_test.method == TRAJECTORY_METHOD_ODE)

        scalar_product = traj_test.v_x * traj_test.a_x + traj_test.a_z * traj_test.v_z

        self.assertAlmostEqual(np.abs(scalar_product).max(), 0.0, 3)
コード例 #3
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    def test_magn_field(self):
        beam_test = ElectronBeam(Electron_energy=1.3, I_current=1.0)
        beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
        und_test = Undulator(K=1.87, period_length=0.035, length=0.035 * 14)
        ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.)

        self.create_magn_field_undulator_test(
            magnetic_structure=und_test,
            electron_beam=beam_test,
            method_traj=TRAJECTORY_METHOD_ODE)
        print("und_test, ok")

        self.create_magn_field_undulator_test(
            magnetic_structure=ESRF18,
            electron_beam=beam_ESRF,
            method_traj=TRAJECTORY_METHOD_ODE)
        print("esrf18, ok")
コード例 #4
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def Example_meshgrid():
    from pySRU.ElectronBeam import ElectronBeam

    print(
        "======================================================================"
    )
    print(
        "======      Undulator U18 from ESRF with K=1.68                ======="
    )
    print(
        "======================================================================"
    )

    beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
    ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)

    #
    # radiation in a defined meah
    #
    print('create radiation a given screen (40mm x 40mm @ 100 m )')
    X = np.linspace(-0.02, 0.02, 101)
    Y = np.linspace(-0.02, 0.02, 101)
    distance = 100.0
    simulation_test = create_simulation(
        magnetic_structure=ESRF18,
        electron_beam=beam_ESRF,
        magnetic_field=None,
        photon_energy=None,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        Nb_pts_trajectory=None,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        Nb_pts_radiation=101,
        initial_condition=None,
        distance=distance,
        XY_are_list=False,
        X=X,
        Y=Y)

    simulation_test.print_parameters()
    simulation_test.trajectory.plot_2D()
    simulation_test.radiation.plot(
        title=" radiation in a defined screen (40mm x 40mm @ 100 m )")

    #
    # up to a maximum X and Y
    #
    print('create simulation for a given maximum X and Y ')
    simulation_test = create_simulation(
        magnetic_structure=ESRF18,
        electron_beam=beam_ESRF,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        distance=100,
        X=0.01,
        Y=0.01)

    simulation_test.radiation.plot(
        title='simulation for a maximum X=0.01 and Y=0.01')
コード例 #5
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    def test_copy_undulator(self):
        K = 1.87
        period_length = 0.035
        length = 0.035 * 14
        undulator = Undulator(K=K, period_length=period_length, length=length)
        undulator2 = undulator.copy()

        undulator2.K = 1.5
        self.assertEqual(undulator.K, 1.87)
        self.assertEqual(undulator2.K, 1.5)

        self.assertEqual(undulator.period_number(), 14)
コード例 #6
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def Example_minimum():

    from pySRU.ElectronBeam import ElectronBeam

    print(
        "======================================================================"
    )
    print(
        "======      Undulator from X-ray data booklet                  ======="
    )
    print(
        "====== fig 2.5 in  http://xdb.lbl.gov/Section2/Sec_2-1.html    ======="
    )
    print(
        "======================================================================"
    )

    # note that the flux in the reference fig 2.6 is a factor 10 smaller than the calculated here.
    # This factor comes from the units:
    #     here: phot / s  / A / 0.1%bw / (mrad)^2
    #     ref : phot / s  / A /   1%bw / (0.1 mrad)^2

    undulator_test = Undulator(K=1.87, period_length=0.035, length=0.035 * 14)
    electron_beam_test = ElectronBeam(Electron_energy=1.3, I_current=1.0)

    simulation_test = create_simulation(
        magnetic_structure=undulator_test,
        electron_beam=electron_beam_test,
        magnetic_field=None,
        photon_energy=None,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        Nb_pts_trajectory=None,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        Nb_pts_radiation=101,
        initial_condition=None,
        distance=None,
        XY_are_list=False,
        X=None,
        Y=None)

    simulation_test.print_parameters()

    simulation_test.trajectory.plot_3D(title="Electron Trajectory")

    simulation_test.radiation.plot(title="Flux in far field vs angle")

    #  second calculation, change distance and also change the grid to accept the central cone
    simulation_test.change_distance(D=100)
    simulation_test.calculate_on_central_cone()

    simulation_test.radiation.plot(title="New distance: %3.1f m" %
                                   simulation_test.radiation.distance)
コード例 #7
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    def test_create_radiation_undulator(self):
        undulator_test = Undulator(K=1.87,
                                   period_length=0.035,
                                   length=0.035 * 14)
        electron_beam_test = ElectronBeam(Electron_energy=1.3, I_current=1.0)
        source_test = SourceUndulatorPlane(undulator=undulator_test,
                                           electron_beam=electron_beam_test)
        traj_fact = TrajectoryFactory(Nb_pts=1001,
                                      method=TRAJECTORY_METHOD_ANALYTIC)
        traj = traj_fact.create_from_source(source_test)

        rad_fact = RadiationFactory(
            photon_frequency=source_test.harmonic_frequency(1),
            method=RADIATION_METHOD_NEAR_FIELD)

        rad = rad_fact.create_for_one_relativistic_electron(trajectory=traj,
                                                            source=source_test)
        self.assertFalse(rad.X is None)
        self.assertFalse(rad.Y is None)
        self.assertFalse(rad.distance is None)

        rad_fact.method = RADIATION_METHOD_APPROX_FARFIELD

        rad2 = rad_fact.create_for_one_relativistic_electron(
            trajectory=traj, source=source_test)
        self.assertTrue(rad2.distance == None)

        rad2 = rad_fact.create_for_one_relativistic_electron(
            trajectory=traj, source=source_test, distance=rad.distance)
        self.assertFalse(rad.distance == None)
        err = rad.difference_with(rad2)

        self.assertTrue(rad.XY_are_similar_to(rad2))
        self.assertTrue(rad.XY_are_similar_to(err))
        self.assertTrue(rad.distance == rad2.distance)
        self.assertTrue(err.distance == rad2.distance)
        self.assertGreaterEqual(err.intensity.min(), 0.0)
        self.assertLessEqual(err.max(),
                             rad.max() * 1e-1)  # srio changed 1e-3 by 1e-1

        traj_test2 = TrajectoryFactory(
            Nb_pts=1001,
            method=TRAJECTORY_METHOD_ODE,
            initial_condition=traj_fact.initial_condition).create_from_source(
                source_test)

        rad3 = rad_fact.create_for_one_relativistic_electron(
            trajectory=traj_test2, source=source_test, distance=rad.distance)
        err = rad2.difference_with(rad3)
        self.assertLessEqual(err.max(), rad2.max() * 1e-3)
コード例 #8
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def Example_spectrum_on_central_cone():
    from pySRU.ElectronBeam import ElectronBeam

    print(
        "======================================================================"
    )
    print(
        "======      Undulator U18 from ESRF with K=1.68                ======="
    )
    print(
        "======================================================================"
    )

    beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
    ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)

    simulation_test = create_simulation(
        magnetic_structure=ESRF18,
        electron_beam=beam_ESRF,
        magnetic_field=None,
        photon_energy=None,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        Nb_pts_trajectory=None,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        Nb_pts_radiation=101,
        initial_condition=None,
        distance=None,
        XY_are_list=False,
        X=np.array([0]),
        Y=np.array([0]))

    harmonic_number = 1
    x, y = simulation_test.calculate_spectrum_central_cone(
        harmonic_number=harmonic_number,
        theoretical_value=True,
        abscissas_array=None,
        use_eV=1)

    # dump file
    filename = "spectrum.spec"
    f = open(filename, 'w')
    f.write("#F %s\n\n#S 1 undulator flux using pySRU\n" % filename)
    f.write(
        "#N 2\n#L Photon energy [eV]  Flux on central cone for harmonic %d [phot/s/0.1bw]\n"
        % harmonic_number)
    for i, xi in enumerate(x):
        f.write("%f  %g\n" % (xi, y[i]))
    f.close()
    print("File written to disk: %s" % filename)
コード例 #9
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    def test_create_magnetic_field(self):
        K = 1.87
        lambda_u = 0.035
        L = 0.035 * 12
        undulator = Undulator(K=K, period_length=lambda_u, length=L)
        Z = np.linspace(-1., 1., 101)
        Y = 0.0
        X = 0.0
        B = undulator.create_magnetic_field(harmonic_number=1)
        By = B.By(Z, Y, X)
        self.assertTrue(By.shape == ((101, )))

        Y = Z
        By = B.By(Z, Y, X)
        self.assertEqual(By.shape, ((101, )))
コード例 #10
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def Exemple_FARFIELD():

    from pySRU.MagneticStructureUndulatorPlane import MagneticStructureUndulatorPlane as Undulator
    from pySRU.ElectronBeam import ElectronBeam
    from pySRU.SourceUndulatorPlane import SourceUndulatorPlane
    from pySRU.TrajectoryFactory import TrajectoryFactory,TRAJECTORY_METHOD_ODE,TRAJECTORY_METHOD_ANALYTIC
    import time



    undulator_test = Undulator(K=1.87, period_length=0.035, length=0.035 * 14)
    electron_beam_test = ElectronBeam(Electron_energy=1.3, I_current=1.0)
    magnetic_field_test = undulator_test.create_magnetic_field()


    magnetic_field_test.plot_z(0,0,np.linspace(-0.035 * (14+8) / 2,0.035 * (14+8) / 2,500))


    source_test = SourceUndulatorPlane(undulator=undulator_test,
                         electron_beam=electron_beam_test,
                         magnetic_field=magnetic_field_test)

    traj = TrajectoryFactory(Nb_pts=2000, method=TRAJECTORY_METHOD_ODE).create_from_source(source_test)

    t0 = time.time()
    Rad = RadiationFactory(photon_frequency=source_test.harmonic_frequency(1), method=RADIATION_METHOD_APPROX_FARFIELD, Nb_pts=101
                           ).create_for_one_relativistic_electron(trajectory=traj, source=source_test)
    print("Elapsed time in RadiationFactory: ",time.time()-t0)

    print('Screen distance :')
    print(Rad.distance)

    print("screen shape ")
    print(Rad.intensity.shape)

    print('X max :')
    print(Rad.X.max())

    print('Y max :')
    print(Rad.Y.max())

    print('intensity max ()')
    print(Rad.max())

    print('plot')
    Rad.plot(title="FAR FIELD")
コード例 #11
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def Example_spectrum_on_axis():
    from pySRU.ElectronBeam import ElectronBeam

    print(
        "======================================================================"
    )
    print(
        "======      Undulator U18 from ESRF with K=1.68                ======="
    )
    print(
        "======================================================================"
    )

    beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
    ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)

    # note that distance=None is important to get results in angles and therefore flux in ph/s/0.1%bw/mrad2
    simulation_test = create_simulation(
        magnetic_structure=ESRF18,
        electron_beam=beam_ESRF,
        magnetic_field=None,
        photon_energy=None,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        Nb_pts_trajectory=None,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        Nb_pts_radiation=101,
        initial_condition=None,
        distance=None,
        XY_are_list=False,
        X=np.array([0]),
        Y=np.array([0]))

    x, y = simulation_test.calculate_spectrum_on_axis(use_eV=1, do_plot=1)

    # dump file
    filename = "spectrum.spec"
    f = open(filename, 'w')
    f.write("#F %s\n\n#S 1 undulator flux using pySRU\n" % filename)
    f.write(
        "#N 2\n#L Photon energy [eV]  Flux on axis [phot/s/0.1%bw/mrad2]\n")
    for i in range(x.size):
        f.write("%f  %g\n" % (x[i], y[i]))
    f.close()
    print("File written to disk: %s" % filename)
コード例 #12
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ファイル: SourceTest.py プロジェクト: cohlux/und_Sophie_2016
    def test_copy(self):
        K = 1.87
        lambda_u = 0.035
        L = 0.035 * 14
        E = 1.3
        I = 1.0
        undulator = Undulator(K=K, period_length=lambda_u, length=L)
        beam = ElectronBeam(Electron_energy=E, I_current=I)
        source = SourceUndulatorPlane(undulator=undulator, electron_beam=beam)

        source2 = source.copy()
        source2.electron_beam.I_current = 0.3
        self.assertEqual(source.I_current(), 1.0)
        self.assertEqual(source2.I_current(), 0.3)

        self.assertAlmostEqual(
            source.harmonic_frequency(1) / 1e17, 2.5346701615509917, 5)
        self.assertAlmostEqual(source.Lorentz_factor(), 2544.0367765521196, 2)
        self.assertAlmostEqual(source.electron_speed(), 0.99999992274559524, 5)
        self.assertEqual(source.magnetic_structure.period_number(), 14)
        self.assertAlmostEqual(source.choose_distance_automatic(2),
                               49.000000000000, 10)
コード例 #13
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def Example_meshgrid_on_central_cone_and_rings():
    from pySRU.ElectronBeam import ElectronBeam

    print(
        "======================================================================"
    )
    print(
        "======      Undulator U18 from ESRF with K=1.68                ======="
    )
    print(
        "======================================================================"
    )

    beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
    ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)

    #
    # radiation in a defined mesh with only one point to save time
    #

    distance = None
    simulation_test = create_simulation(
        magnetic_structure=ESRF18,
        electron_beam=beam_ESRF,
        magnetic_field=None,
        photon_energy=None,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        Nb_pts_trajectory=None,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        Nb_pts_radiation=101,
        initial_condition=None,
        distance=distance,
        XY_are_list=False,
        X=np.array([0]),
        Y=np.array([0]))

    #
    # central cone
    #
    harmonic_number = 1
    print(
        'create radiation in a screen including central cone for harmonic %d' %
        harmonic_number)
    simulation_test.calculate_on_central_cone(harmonic_number=harmonic_number,
                                              npoints_x=50,
                                              npoints_y=50)
    simulation_test.print_parameters()
    simulation_test.radiation.plot(title=(
        "radiation in a screen including central cone, harmonic %d,at D=" +
        repr(distance)) % harmonic_number)

    #
    # up to a given ring
    #
    harmonic_number = 1
    ring_number = 1
    print('create radiation a given screen including ring %d for harmonic %d' %
          (ring_number, harmonic_number))
    simulation_test.calculate_until_ring_number(
        harmonic_number=harmonic_number,
        ring_number=ring_number,
        XY_are_list=False,
        npoints=51)
    simulation_test.print_parameters()
    simulation_test.radiation.plot(
        title=" radiation in a screen containing harmonic %d up to ring %d ring"
        % (harmonic_number, ring_number))
コード例 #14
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            method = ' Trajectory from integration on the magnetic field'
        return method

    def print_parameters(self):
        print("Trajectory ")
        print('    method : %s' % self.get_method())
        print('    number of points : %d' % self.Nb_pts)
        print('    initial position (x,y,z) : ')
        print(self.initial_condition[3:6])
        print('    initial velocity (x,y,z)  ')
        print(self.initial_condition[0:3])


if __name__ == "__main__":
    from SourceUndulatorPlane import SourceUndulatorPlane
    undulator_test = Undulator(K=1.87, period_length=0.035, length=0.035 * 14)
    electron_beam_test = ElectronBeam(Electron_energy=1.3e9, I_current=1.0)

    source_test = SourceUndulatorPlane(undulator=undulator_test,
                                       electron_beam=electron_beam_test)

    print(
        'Create trajectory with autamatic choice of initial condition and automatic magnetic field'
    )

    trajectory_fact_ODE = TrajectoryFactory(Nb_pts=20000,
                                            method=TRAJECTORY_METHOD_ODE)
    trajectory1 = trajectory_fact_ODE.create_from_source(source_test)
    print(' ')
    print('trajectory 1 created with ODE method')
    print(trajectory_fact_ODE.print_parameters())
コード例 #15
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if __name__ == "__main__":
    from srxraylib.plot.gol import set_qt

    set_qt()


    print("======================================================================")
    print("======      Undulator U18 from ESRF with K=1.68                =======")
    print("======================================================================")

    beam_ALSU = ElectronBeam(Electron_energy=2.0, I_current=0.5)
    # ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)
    id = Undulator(K=2.0, period_length=0.4, length=1.6)

    #
    # radiation in a defined mesh with only one point to save time
    #

    distance = None
    simulation_test = create_simulation(magnetic_structure=id,
                                          electron_beam=beam_ALSU,
                                          magnetic_field=None,
                                          photon_energy=None,
                                          traj_method=TRAJECTORY_METHOD_ANALYTIC,
                                          Nb_pts_trajectory=None,
                                          rad_method=RADIATION_METHOD_APPROX_FARFIELD, Nb_pts_radiation=101,
                                          initial_condition=None,
                                          distance=distance,
コード例 #16
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ファイル: main.py プロジェクト: cohlux/und_Sophie_2016
from pySRU.Source import Source
from pySRU.Simulation import Simulation ,create_simulation
from pySRU.TrajectoryFactory import TRAJECTORY_METHOD_ANALYTIC,TRAJECTORY_METHOD_ODE
from pySRU.RadiationFactory import RADIATION_METHOD_NEAR_FIELD, RADIATION_METHOD_APPROX_FARFIELD,RADIATION_METHOD_APPROX


eV_to_J=1.602176487e-19
######################################################

#BM_test=MagneticStructureBendingMagnet(Bo=0.8, div=5e-3, R=25.0)

E_1=7876.0

beam_test=ElectronBeam(Electron_energy=1.3, I_current=1.0)
beam_ESRF=ElectronBeam(Electron_energy=6.0, I_current=0.2)
und_test=Undulator(  K = 1.87,  period_length= 0.035, length=0.035 * 14)
ESRF18=Undulator( K = 1.68, period_length = 0.018, length=2.0)
ESRFBM=BM(Bo=0.8,horizontale_divergeance=0.005,electron_energy=6.0)



vx= 2e-4
vz= np.sqrt(beam_test.electron_speed()**2-vx**2)*codata.c

# initial_cond=np.array([ vx*codata.c,  0.00000000e+00 ,vz , 0.0 , 0.0 ,-0.42,])
#X=np.linspace(-0.02,0.02,150)
#Y=np.linspace(-0.02,0.02,150)
sim_test = create_simulation(magnetic_structure=und_test, electron_beam=beam_test, traj_method=TRAJECTORY_METHOD_ANALYTIC,
                            rad_method=RADIATION_METHOD_APPROX_FARFIELD, Nb_pts_trajectory=1000,distance=100)
sim_test.calculate_on_central_cone()
sim_test.change_energy_eV(E=2000)
コード例 #17
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    #
    # simulation_test.radiation.plot(title="Flux in far field vs angle")

    print(
        "======================================================================"
    )
    print(
        "======      Undulator U18 from ESRF with K=1.68                ======="
    )
    print(
        "======================================================================"
    )

    beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
    # ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)
    ESRF18 = Undulator(K=1.0, period_length=0.1, length=1.0)

    #
    # radiation in a defined mesh with only one point to save time
    #

    distance = None
    simulation_test = create_simulation(
        magnetic_structure=ESRF18,
        electron_beam=beam_ESRF,
        magnetic_field=None,
        photon_energy=None,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        Nb_pts_trajectory=None,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        Nb_pts_radiation=101,
コード例 #18
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def Example_spectrum_on_slit():
    from pySRU.ElectronBeam import ElectronBeam

    print(
        "======================================================================"
    )
    print(
        "======      Undulator U18 from ESRF with K=1.68                ======="
    )
    print(
        "======================================================================"
    )

    beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
    ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)

    print(
        'create radiation a given screen (.025 x .025 mrad) accepting central cone'
    )
    is_quadrant = 1
    distance = None  # using angles

    if is_quadrant:
        X = np.linspace(0, 0.0125e-3, 26)
        Y = np.linspace(0, 0.0125e-3, 26)
    else:
        X = np.linspace(-0.0125e-3, 0.0125e-3, 51)
        Y = np.linspace(-0.0125e-3, 0.0125e-3, 51)

    if distance != None:
        X *= distance
        Y *= distance

    simulation_test = create_simulation(
        magnetic_structure=ESRF18,
        electron_beam=beam_ESRF,
        magnetic_field=None,
        photon_energy=None,
        traj_method=TRAJECTORY_METHOD_ANALYTIC,
        Nb_pts_trajectory=None,
        rad_method=RADIATION_METHOD_APPROX_FARFIELD,
        Nb_pts_radiation=101,
        initial_condition=None,
        distance=distance,
        XY_are_list=False,
        X=X,
        Y=Y)

    simulation_test.print_parameters()
    simulation_test.radiation.plot(
        title=("radiation in a screen for first harmonic"))
    print("Integrated flux at resonance: %g photons/s/0.1bw" %
          (simulation_test.radiation.integration(is_quadrant=is_quadrant)))

    x, y = simulation_test.calculate_spectrum_on_slit(abscissas_array=None,
                                                      use_eV=1,
                                                      is_quadrant=is_quadrant)

    # dump file
    filename = "spectrum.spec"
    f = open(filename, 'w')
    f.write("#F %s\n\n#S 1 undulator flux using pySRU\n" % filename)
    f.write("#N 2\n#L Photon energy [eV]  Flux on slit [phot/s/0.1%bw]\n")
    for i in range(x.size):
        f.write("%f  %g\n" % (x[i], y[i]))
    f.close()
    print("File written to disk: %s" % filename)
コード例 #19
0
    def test_main(self):
        beam_test = ElectronBeam(Electron_energy=1.3, I_current=1.0)
        beam_ESRF = ElectronBeam(Electron_energy=6.0, I_current=0.2)
        und_test = Undulator(K=1.87, period_length=0.035, length=0.035 * 14)
        ESRF18 = Undulator(K=1.68, period_length=0.018, length=2.0)

        ##ESRFBM = BM(E=6.0e9, Bo=0.8, div=5e-3, R=25.0, I=0.2)

        self.simul_undulator_theoric(
            magnetic_struc=und_test,
            electron_beam=beam_test,
            method_rad=RADIATION_METHOD_APPROX_FARFIELD,
            method_traj=TRAJECTORY_METHOD_ODE)
        print("Intensity ok")

        print(' undulator test ')
        self.simul_undulator_near_to_farfield(
            magnetic_struc=und_test,
            electron_beam=beam_test,
            method_traj=TRAJECTORY_METHOD_ANALYTIC)
        print("TRAJECTORY_METHOD_ANALYTIC ok")
        self.simul_undulator_near_to_farfield(
            magnetic_struc=und_test,
            electron_beam=beam_test,
            method_traj=TRAJECTORY_METHOD_ODE)
        print("TRAJECTORY_METHOD_ODE ok")

        self.simul_undulator_traj_method(
            magnetic_struc=und_test,
            electron_beam=beam_test,
            method_rad=RADIATION_METHOD_APPROX_FARFIELD)
        print('APPROX FARFIELD ok')

        self.simul_undulator_traj_method(
            magnetic_struc=und_test,
            electron_beam=beam_test,
            method_rad=RADIATION_METHOD_NEAR_FIELD)
        print('NEAR FIELD ok')
        print(' ')
        print('undulator ESRF18')
        self.simul_undulator_near_to_farfield(
            magnetic_struc=ESRF18,
            electron_beam=beam_ESRF,
            method_traj=TRAJECTORY_METHOD_ANALYTIC)
        print("TRAJECTORY_METHOD_ANALYTIC ok")

        self.simul_undulator_near_to_farfield(
            magnetic_struc=ESRF18,
            electron_beam=beam_ESRF,
            method_traj=TRAJECTORY_METHOD_ODE)
        print("TRAJECTORY_METHOD_ODE ok")

        #TODO marche pas ?
        self.simul_undulator_traj_method(
            magnetic_struc=ESRF18,
            electron_beam=beam_ESRF,
            method_rad=RADIATION_METHOD_APPROX_FARFIELD)
        print('APPROX FARFIELD ok')

        self.simul_undulator_traj_method(
            magnetic_struc=ESRF18,
            electron_beam=beam_ESRF,
            method_rad=RADIATION_METHOD_NEAR_FIELD)
        print('NEAR FIELD ok')