MainPage:Nuclear:NPS:PWO:CrystalLOG:SICCAJ23

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Time LOG

SICCA J23
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.
03/01/2016 Marco Light Yield Run 3147: crystal wrapped with ~5 layers of teflon tape and 2 layers of black tape. Steps of 20min, 1cm. T=18oC. LY = 16.50 pe/MeV.
03/04/2016 Marco Transverse Transmittance At the center of the crystal, every nm from 200nm until 800nm. Sample: 1310
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: 360nm, 420nm, 620nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/06/2016 Summer Students Longitudinal Transmittance Scan Wavelengths: 200-800nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/18/2016 Summer Students Transverse Transmittance Scan Wavelengths: 360nm, 420nm, 620nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/18/2016 Summer Students X-ray Radiation 70 minutes. 160kV. 6mA. 70 minutes ? cm from beam origin.
07/18/2016 Summer Students Transverse Transmittance Scan Wavelengths: 200-800nm. Sampling period: 0.6s, moving motor at 2mm/s.
07/25/15 Summer Students X-ray Irradiation 160kV 6.3mA 70 minutes. 14.16 cm for LabJack on shelf 8. 6290R/min ionization rate.
07/25/16 Summer Students Transverse Transmittance Wavelengths 200-800nm.
07/25/16 Summer Students LED curing 7 minutes at 3.5 V with 34 blue LEDs.
07/25/16 Summer Students Transverse Transmittance Wavelengths 200-800nm.
07/25/16 Summer Students LED curing 7 more minutes (14 total) at 3.5 V with 34 blue LEDs.
07/25/16 Summer Students Transverse Transmittance Wavelengths 200-800nm.
08/08/2016 Summer Students Transverse Transmittance Wavelengths 200-800nm. 10cm down crystal. Want to see if crystal recovers after 9 days of sitting in its casing.

Transmittance measurements

Longitudinal transmittance measured at Lambda 750 (no integrating sphere).

Pictures at 12/14/2015

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Radiation Hardness

07/29/2016

LED curing

07/29/2016
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