Date
|
Description
|
Comments
|
03/09/2016 |
Pictures |
Documentation of crystal's conditions as it arrived at CUA.
|
03/09/2016 |
Dimensions |
Crystal's dimensions measured. Length and six points of width (3 in each face).
|
03/18/2016 |
Thermal annealing |
Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
|
03/30/2016 |
Light Yield |
Run 3166: crystal wrapped with ~5 layers of teflon tape and 2 layers of black tape. Steps of 20min, 1cm. T=18oC. LY = 10.87 pe/MeV.
|
05/19/2016 |
Transverse Transmittance |
At the center of the crystal, every nm from 200nm until 800nm. Sample: 1345
|
05/20/2016 |
Transverse Transmittance Scan |
Wavelengths: 360nm, 420nm, 620nm. Sampling period: 0.6s, moving motor at 2mm/s.
|
07/06/2016 |
Longitudinal Transmittance Scan |
Wavelengths: 200-800nm. Sampling period: 0.6s, moving motor at 2mm/s.
|
07/21/2016 |
Light Yield |
Run:3236 ~3layers of teflon tape and 1 layer of black tape. ~50,000 incidents recorded at ~18 degrees Celsius.
|
07/27/2016 |
X-ray Irradiation |
160kV 6.3mA 70 minutes. 14.16 cm for LabJack on shelf 8. 6290R/min ionization rate.
|
07/27/2016 |
Transverse Transmittance |
10cm down crystal. Wavelengths: 200-800nm.
|
07/27/2016 |
LED curing |
7 minutes with 34 blue LEDs. 3.5 V. Millipore cover placed over lights and crystal.
|
07/27/2016 |
Transverse Transmittance |
Wavelenghts: 200-800nm. 10 cm down crystal.
|