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Time LOG

SICCA J31
Date Experimenter(s) Description Comments
03/17/2016 Marco Pictures Documentation of crystal's conditions as it arrived at CUA.
03/18/2016 Marco Thermal annealing Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
04/14/2016 Salina Light Yield Run 3189: crystal wrapped with ~5 layers of teflon tape and 2 layers of black tape. Steps of 20min, 1cm. T=18oC. Forgot to set time limit..need to re-run.
04/18/2016 Salina Light Yield Run 3192: crystal wrapped with ~5 layers of teflon tape and 2 layers of black tape. Steps of 20min, 1cm. T=18oC. LY = 18.04 pe/MeV.
05/17/2016 Marco Transverse Transmittance At the center of the crystal, every nm from 200nm until 800nm. Sample: 1346
05/20/2016 Marco Transverse Transmittance Scan Wavelengths: 360nm, 420nm, 620nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/07/2016 Marco Longitudinal Transmittance Scan Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
01/05/2017 Marco Irradiation X-ray 160 kV, 6mA, 15 min (+15min, +15min).

Pictures at 03/17/2016

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