Source Calibration and Dose Rate Data
| Date |
Initial Source Strength (Ci) |
Current Source Strength (Ci) |
Distance to Faceplate (cm) |
Exposure Rate (Roentgen/hr)°
|
| 6/27/17 |
20 |
9.3 |
30.5 |
17.691
|
| 9/11/17 |
20 |
9.3 |
30.5 |
17.606
|
°Calculated by TSO using [math]\dot x = \frac {\Gamma A }{ D^2} [/math] where [math]\boldsymbol{\Gamma} = 3.3 \frac {(cm^2)(R)}{(mCi)(hr)} [/math] , [math]\mathbf{A} = 9.3 Ci [/math] , [math]\mathbf{D}=(\text{Distance to faceplate} + 11.2cm) [/math]
Total dose calculated by [math]\int\limits_{t_0}^{t_f}\dot x\ dt [/math]
137Cs Shot Log
Dot OSLs
| Date |
Run Number |
Run Time (s) |
Distance to Faceplate |
Number of OSLs in Stack
|
| 9/8/17 |
1 |
5660 |
30cm |
11
|
| 9/8/17 |
1 |
5660 |
30cm |
11
|
| 9/26/17 |
2 |
4500 |
30cm |
11
|
| 9/26/17 |
2 |
4500 |
30cm |
11
|
Nanodot OSL Quality Control
| Date |
Run Number |
Run Time (s) |
Distance to Faceplate |
Number of OSLs |
Total Exposed Dose |
Measured Dose |
Adjusted Dose
|
| 10/12/17 |
1 |
284.04 |
30.5cm |
3 |
- |
- |
-
|
Reproducibility with 137Cs