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Time LOG

**SICCA J37**
Date	Experimenter(s)	Description	Comments
05/02/2016	Marco	Pictures	Documentation of crystal's conditions as it arrived at CUA.
05/02/2016	Marco	Thermal annealing	Ramp up at 18°C/hour up to 200°C. Stays for 10 hours and ramp down at 18°C/hour.
05/13/2016	Salina	Light Yield	Run 3208: crystal wrapped with ~5 layers of teflon tape and 2 layers of black electrical tape. Steps of 20min, 1cm. T=18°C. LY = 15.1954 ± 0.798 pe/MeV.
05/19/2016	Marco	Transverse Transmittance	At the center of the crystal, every nm from 200nm until 800nm. Sample: 1359
05/20/2016	Marco	Transverse Transmittance Scan	Wavelengths: 360nm, 420nm, 620nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/12/2016	Marco	Longitudinal Transmittance Scan	Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
08/01/16	Summer Students	Light Yield	Run: 3252. 3 layers of teflon 1 later of electrical. ~50,000 incidents at ~18 degrees Celsius. Light Yield: 10.26 pe/MeV
07/27/16	Summer Students	Light Yield	3 layers of teflon 1 later of electrical. ~50,000 incidents at ~18 degrees Celsius. 200ns gatewidth->1000ns gatewidth. 200ns: 3292, 300ns:3293, 400ns:3294, 500ns:3276, 600ns:3296, 700ns:3297, 800ns:3298, 900ns:3299, 1000ns:3289
08/11/16	Summer Students	Light Yield	Run: 3408. 3 layers of teflon 1 later of electrical. ~50,000 incidents at ~18 degrees Celsius. LY:9.47