| Date
|
Experimenter
|
Description
|
Comments
|
| 12/14/2015 |
Marco |
Pictures |
Documentation of crystal's conditions as it arrived at CUA.
|
| 12/14/2015 |
Marco |
Wrapped |
Preparing for light yield measurement. Approximately 5 layers of teflon tape, and 2 layers of black tape.
|
| 12/15/2015 |
Marco |
LY scan |
Measurement of LY along crystal. More details in the LOGBOOK, runs xx..
|
| 02/01/2016 |
Marco |
Thermal annealing |
Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
|
| 03/04/2016 |
Marco |
Transverse Transmittance |
At the center of the crystal, every nm from 200nm until 800nm. Sample: 1317
|
| 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.
|
| 07/05/2016 |
Summer Students |
Longitudinal Transmittance Scan |
Wavelengths: 200-800nm. Measured effect of iris diameter on transmittance. 8.0mm, 11.5mm, 15mm, and 17mm.
|
| 07/14/2016 |
Summer Students |
Longitudinal Transmittance Scan |
Wavelengths: 200-800nm. Measured effect of off center crystal placement on transmittance. +1.3°C, +2.3°C, -1.3°C, -2.3°C.
|
| 07/26/2016 |
Summer Students |
Light Yield |
Run 3250. 100ns gw. ~50,000 incidents ~3 layers of teflon tape ~1 layer of electrical.
|
| 07/29/2016 |
Summer Students |
Transverse Transmittance |
At 10cm. 200-800nm wavelength.
|
| 07/29/16 |
Summer Students |
X-Ray Irradiation |
160kV 6.3mA 70 minutes. 14.16 cm for LabJack on shelf 8. 6290R/min ionization rate.
|
| 07/29/2016 |
Summer Students |
Transverse Transmittance |
At 10cm. 200-800nm wavelength.
|
| 07/29/2016 |
Summer Students |
LED curing |
7 minutes with 34 blue LEDs. 3.5 V. Millipore cover placed over lights and crystal.
|
| 07/29/2016 |
Summer Students |
Transverse Transmittance |
At 10cm. 200-800nm wavelength.
|
| 07/29/2016 |
Summer Students |
LED curing |
7 more minutes (14 minutes total) with 34 blue LEDs. 3.5 V. Millipore cover placed over lights and crystal.
|
| 07/29/2016 |
Summer Students |
Transverse Transmittance |
At 10cm. 200-800nm wavelength.
|
| 07/29/2016 |
Summer Students |
LED curing |
7 more minutes (21 minutes total) with 34 blue LEDs. 3.5 V. Millipore cover placed over lights and crystal.
|
| 01/5/2017 |
TH |
Light Yield |
Already wrapped crystal, run 3532: 9.68 pe/MeV, run 3533: 9.83 pe/MeV.
|
| 07/11/2017 |
Summer Students |
Light Yield |
Run 3690. 100ns gw. ~50,000 incidents ~3 layers of teflon tape ~1 layer of electrical. LY=12.61 pe/MeV.
|
