Below I am comparing for one generated event the Veto infomation in the MCPART and MCDEPOSITED banks. I tried to match the x-positions for the final particles with the information in each bank, but there was no match.

Below are pictures of the Veto counters from primsim before and after the x-positions were fixed. A 5cm shift was found in the geometry of the veto detectors.
| Before x-pos correction | After x-pos correction |
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This week I updated beamline equipment in primsim, the Primex simulation package. These items were the helium bag, Pair Spectrometer vacuum box, and target ladder. Below are pictures from the simulation.
| Primex experimental setup |
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| PS assembly | PS assembly viewed from above |
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| Target assembly (looking downstream) |
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I also added the correct z-positions for all of the devices such as HYCAL, VETO, helium bag, and PS. There are many small items to add such as the exit window of the helium bag, the exit window on the PS vacuum chamber, and the proper target orientation.
Major items to add are:
I added the target box to the simulation package. The target ladder and the box have been separated to view each better.
| Target box |
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I added the HYCAL box to the simulation package. It is not finished yet, but a work in progress.
| HYCAL box |
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