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Time LOG

**SICCA J21**
Date	Experimenter(s)	Description	Comments
12/14/2015	Marco	Pictures	Documentation of crystal's conditions as it arrived at CUA.
01/28/2016	Marco	Thermal annealing	Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
02/25/2016	Marco	Light Yield	Run 3145: crystal wrapped with ~5 layers of teflon tape and 2 layers of black tape. Steps of 20min, 1cm. T=18oC. LY = 15.97 pe/MeV.
03/04/2016	Marco	Transverse Transmittance	At the center of the crystal, every nm from 200nm until 800nm. Sample: 1312
03/04/2016	Marco	Dimensions	Crystal's dimensions measured. Length and six points of width (3 in each face).
05/23/2016	Marco	Transverse Transmittance Scan	Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/06/2016	Summer Students	Longitudinal Transmittance Scan	Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/15/2016	Summer Students	Longitudinal Transmittance Scan	Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/21/2016	Summer Students	Longitudinal Transmittance Scan	Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/20/2016	Summer Students	Transverse Transmittance	Wavelengths: 200-800nm. 10cm down crystal.
07/23/2016	Summer Students	Light Yield	Run:3242 3 layers of teflon tape and 1 layer of electrical. ~50,000 incidents recorded at ~18 degrees Celsius.
07/28/2016	Summer Students	X-ray Irradiation	160kV, 6.3mA, 70 minutes. 6290R/min ionization rate.
07/28/2016	Summer Students	Transverse Transmittance	At 10cm. 200-800nm wavelength.
07/28/2016	Summer Students	LED curing	7 minutes with 34 blue LEDs. 3.5 V. Millipore cover placed over lights and crystal.
07/28/2016	Summer Students	Transverse Transmittance	At 10cm. 200-800nm wavelength.
07/28/2016	Summer Students	LED curing	7 more minutes (14 minutes total) with 34 blue LEDs. 3.5 V. Millipore cover placed over lights and crystal.
07/28/2016	Summer Students	Transverse Transmittance	At 10cm. 200-800nm wavelength.
07/28/2016	Summer Students	LED curing	7 more minutes (21 minutes total) with 34 blue LEDs. 3.5 V. Millipore cover placed over lights and crystal.