def miezescan(echolist, counttime):
"""Iterate over a list of echotimes -> measure one S(Q,t) curve
echolist: list of echotimes
counttime: counting time (the **same** for all list entries)
"""
echotime = session.getDevice('echotime')
with manualscan(echotime, counttime):
for etime in echolist:
move(echotime, etime)
set_cascade()
count(counttime)
def miezescan(echolist, counttime):
"""Iterate over a list of echotimes -> measure one S(Q,t) curve
echolist: list of echotimes
counttime: counting time (the **same** for all list entries)
"""
# psd_channel.mode = 'tof'
echotime = session.getDevice('echotime')
with manualscan(echotime, counttime):
for etime in echolist:
setecho(etime)
count(counttime)
def test_manualscan(session):
mot = session.getDevice('motor')
c = session.getDevice('coder')
det = session.getDevice('det')
mm = session.getDevice('manual')
mm.maw(0)
slow_motor = session.getDevice('slow_motor')
slow_motor.maw(0)
# normal
with manualscan(mot, det, t=0.):
assert mot in session._manualscan._envlist
for i in range(3):
mot.maw(i)
count_result = count()
assert raises(NicosError, manualscan)
assert isinstance(count_result, CountResult) and len(count_result) == 5
# with multistep
SetEnvironment('slow_motor')
try:
with manualscan(mot, c, det, 'manscan', manual=[0, 1], t=0.):
assert c in session._manualscan._envlist
for i in range(3):
mot.maw(i)
count_result = count()
finally:
SetEnvironment()
dataman = session.experiment.data
dataset = dataman.getLastScans()[-1]
assert dataset.info.startswith('manscan')
# note: here, the env devices given in the command come first
assert dataset.envvaluelists == [[0., 0., 0.], [0., 0., 0.], [1., 1., 0.],
[1., 1., 0.], [2., 2., 0.], [2., 2., 0.]]
assert isinstance(count_result, list)
assert isinstance(count_result[0], CountResult)
def freqscan(device, start, step, numsteps):
"""Special scan for finding a resonance.
Detector must be set to according device (e.g. cbox_0a_coil_rms)
device: cbox_0a_fg_freq
start: starting frequency in Hz
step: steps in Hz
numsteps: number of steps
"""
with manualscan(device):
for i in range(numsteps):
maw(device, start + step * i)
session.delay(0.2)
count(1)
def _tomo(title, angles, moveables, imgsperangle, *detlist, **preset):
if moveables is None:
# TODO: currently, sry is the common name on nectar and antares for the
# sample rotation (phi - around y axis). Is this convenience function
# ok, or should it be omitted and added to the instrument custom?
moveables = (session.getDevice('sry'), )
elif isinstance(moveables, Moveable):
moveables = (moveables, )
moveables = tuple(moveables)
session.log.debug('used angles: %r', angles)
with manualscan(*(moveables + detlist), _title=title) as scan:
for angle in angles:
# Move the given movable to the target angle
try:
scan.moveDevices(moveables, [angle] * len(moveables))
# Capture the desired amount of images
for _ in range(imgsperangle):
for i in range(2, -1, -1):
try:
count(**preset)
except NicosError:
if not i:
raise
session.log.warning(
'Count failed, try it again.'
'%d remaining tries', i)
if detlist:
reset(*detlist)
else:
reset(*session.experiment.detectors)
else:
break
except SkipPoint:
pass
