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Summing Over Scan Steps With An Integrating Detector
In this case the images being summed are uint16, so the sums overflow, but the idea is correct.
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from psana import DataSource
import os
os.environ['PS_SMD_N_EVENTS'] = '50' # Number of integrating detector events
os.environ['PS_SRV_NODES']='1'
ds = DataSource(exp='rixx1003721', run=161, intg_det='epixhr')
smd = ds.smalldata(filename='phil.h5')
myrun = next(ds.runs())
epix = myrun.Detector('epixhr')
nevt=0
step_sums = {}
for nstep,step in enumerate(myrun.steps()):
localsum = None
for nevt,evt in enumerate(step.events()):
if localsum is None:
localsum = epix.raw.raw(evt)
else:
localsum += epix.raw.raw(evt)
step_sums[str(nstep)] = smd.sum(localsum)
if smd.summary:
smd.save_summary(step_sums)
smd.done() |
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