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Fig. Temp. Setup with small 10k's (ff and sf). Wave-8 diodes not mounted.

Image Added

Fig. Final setup for the small 10k's. In picture, NG and FF cameras.

Measurement plan:

15 July 2023(?):

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Complete calibration of the small ePix10k's (from, side, NG). Make sure we use dropped shots.

Beamtime plan:

excel sheet of the expected measurements.

File containing the run number descriptions:

Loggbok location:

/sdf/home/n/nakahara/analysis/detectors/IH/epix10k_mfxx10050_20230715

night 1 - notes

night 2 - notes2

File containing the run number descriptions:

+ loggbook

night 3 - loggbook.

Notes and observations from the beamtime and subsequent data analysis:

commands in hutch python:

get to hutch python from mfx-daq by typing mfx3. Commands of interest:

att(x) - sets the transmission to x. so x=0.20 gives 20% transmission;

lcls.bykik_get_period() - gets the drop period. So if you get 137, it drops every 137 shot

lcls.bykik_set_period(x) - drops every xth event (x=137 drops every 137 event, x=2 drops every second event)

Gain configuration settings:

Table A1. Tr_bit and pixel config file combinations required to get specific gain mode for the ePix10 small.

Folder structure:

cd /sdf/data/lcls/ds/mfx/mfxx1005021/results
(ana-4.0.48-py3) ls
lowFlux  philiph  scan  scripts

The idea is to put scripts under scripts and scan or lowFlux ntuples/.npy files etc under scan or lowFlux.  This is how I had things set up on the old psana.

To copy the files to another experiment (from mfxx1005021 to xcsc00120), then use:

cp -rp /sdf/data/lcls/ds/mfx/mfxx1005021/results/scripts /sdf/data/lcls/ds/xcs/xcsc00121/results/scripts

cp -rp /sdf/data/lcls/ds/mfx/mfxx1005021/results/scripts /sdf/data/lcls/ds/xcs/xcsc00121/results/scan

cp -rp /sdf/data/lcls/ds/mfx/mfxx1005021/results/scripts /sdf/data/lcls/ds/xcs/xcsc00121/results/lowFlux

however, you will lijkely not want to copy all the files in scan and lowFlux, so it might be easier to just create them in the folder for the new experiment.

Instructions to run the DAQ scripts and analysis:

Script description, please see: Script descriptions

Attenuator scans:

DAQ scans:

1. intensity scan that produces multiple files:

Leland has written a new attenuator scan script for us.  To use this, go on mfx-daq and:

1. if in mfx-monitor, then ssh mfx-daq
2. Start  Start mfx hutch python by typing "mfx3"
3. import numpy as np
4. scan_list = [1,0.66,0.33,0.1,0.05] (i.e 100%, 66%, 33%, 10%, 5%)
5. x.attenuator_scan(events=240,record=True,config=False,transmissions=scan_list)

          to just manually change the attenuation, write att(20) in the hutch python.

The DAQ needs to be in the configured state before running this script.

2. intensity scan that produces a single file:

x.attenuator_single_scan(events=12000,record=True,transmissions=[1.0,0.8, 0.61,0.4,0.2,0.1,0.05,0.01])

1.0,0.8, 0.61,0.4,0.2,0.1,0.05,0.01 are the transmissions with 1.0 having no attenuation, and 0.01 being 1% transmission.

Analysis script:

??????

Timing scans:

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One can run e.g. python persistenceCheck.py -r 272 -d Epix10ka2M --maxNevents 450000 with the usual base class to analyze persistence.  The script stores the mean and flux of kicked events and the immediately preceding events and also makes a dumb plot.

Check the detector configurations.:

 (ana-4.0.48-py3)  /sdf/group/lcls/ds/daq/current/build/pdsapp/bin/x86_64-rhel7-opt/configdb_readxtc -e ./xtc/

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Updated default run for intensity scans:

Results:

Link to analysis plan:

Beamtime run notes (Bhavna):

https://docs.google.com/document/d/1eYhR0q_LjSd4DGc9OnYuBl2aFFucNxmGOBq_E0NMT5g/edit

Analysis plan (Bhavna):

https://docs.google.com/spreadsheets/d/10m2vQLeCrlIA53khhRLaTRqm4YGobh0RGqGaE3A_WL8/edit

Primary finding for smalls: the detector is marginally timed in, which is causing the low values after switching. The delay, ACQToAsicR0delay, should be shifted from 18223 to 17223.

Google Drive folder for presentations with results etc.:

https://drive.google.com/drive/u/1/folders/1oolbkUqPAMD76qWZYiGQvVKIQPCqUfBS

Initial simulations of effects for getting the timing wrong. (Conny)

Overview of initial findings. (Conny)

Register settings for the various cameras for easy access. (Conny)

Small study of the double population. (Xavier)

Timing in an ePix detector with LCLS timing system - VB (Dionisio)

Double population (Xavier)