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S30XL-LESA/LDMX
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10:10
Module fully installed but powered off. Out sensor is ~177cm from the exit window.
Mike setting up electron gun; some tuning is needed on the beam line since last experiment ran at 60MeV instead of 120MeV.
Noise before beam:
10:30
Beam E=119.3MeV, 50pC at gun, 10Hz
Start with 0 foils in order to search for the beam on the insertable phosphor screen.
The Phosphor screen is at ~75cm from exit window.
We use the measured voltage on the toroid located downstream of the spectrometer magnet: "ADC1".
At this point ADC1=0.06V which is ~40pC according to Mike.
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