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.
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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