| Date
|
Description
|
Comments
|
| 12/14/2015 |
Pictures |
Documentation of crystal's conditions as it arrived at CUA.
|
| 12/15/2015 |
Thermal annealing |
Ramp up at 18oC/hour up to 200oC. Stays for 10 hours and ramp down at 18oC/hour.
|
| 12/17/2015 |
Long. Transmittance |
Note: crystal NOT wrapped.
|
| 12/17/2015 |
Transverse Transmittance |
Scan at 360, 420, and 620nm.
|
| 12/18/2015 |
Irradiation |
160 keV photons at 6mA, for 10min.
|
| 12/18/2015 |
Transverse Transmittance |
Scan at 360, 420, and 620nm after 30 min of irradiation.
|
| 01/05/2016 |
LY scan |
At 100ns, as described in run 3047.
|
| 03/04/2016 |
Transverse Transmittance |
At the center of the crystal, every nm from 200nm until 800nm. Sample: 1315
|
| 03/04/2016 |
Dimensions |
Crystal's dimensions measured. Length and six points of width (3 in each face).
|
| 05/23/2016 |
Transverse Transmittance Scan |
Wavelengths: 200-800 nm. Sampling period: 0.6s, moving motor at 2mm/s.
|
| 07/06/2016 |
Longitudinal Transmittance Scan |
Wavelengths: 200-800 nm. Measured effect of off-center placement of crystal on transmittance. +1.3°, +2.3°, -1.3°, -2.3.
|
| 07/06/2016 |
Longitudinal Transmittance Scan |
Wavelengths: 200-800 nm. Measured effect of which face of crystal faced light beam in spectrometer. "flip" of crystal.
|
| 07/07/2016 |
Longitudinal Transmittance Scan |
Wavelengths: 200-800 nm. Measured effect of iris diameter on transmittace. 8mm, 11.5mm (used), 15mm, 17mm.
|
| 07/14/2016 |
Longitudinal Transmittance Scan |
Wavelengths: 200-800 nm. Remeasured effect of off-center placement of crystal on transmittance BUT with removal of all residue/tape off 2x2 crystal face. +1.3°, +2.3°, -1.3°, -2.3.
|
| 07/21/2016 |
Light Yield (unmeasured) |
Crystal accident , crack on 2x2 face of crystal.
|
| 07/28/2016 |
Transverse Transmittance |
200-800nm wavelengths. 10cm down crystal.
|
