Mystery fluid has been inserted into the holder at 2mm
Chip says it's a lot of fluid
First count measurement of 30s 2721
February 11th, 18:04
1. 2721
2. 1824
3. 1579
4. 1298
5. 1136
6. 911
7. 764
8. 623
9. 511
10. 430
11. 380
12. 317
13. 283
14. 238
15. 169

Background count 56 2 minute

s - 0.48 

60Co Source is going in! 3cm distance
2cm from GM tube, 1cm from cobalt

| Amount Lead mg/cm^2 | 2 Minute Count |
| ------------------- | -------------- |
| 0                   | 797            |
| 1120                | 542            |
| 2066                | 537            |
| 3448                | 507            |
| 7367                | 395            |
| 1k + 3k             | 431            |
| 2000+3000           | 406            |
| 3000+7000           | 323            |
| 2000+7000           | 357            |
| 2x 7k               | 290            |
| 2x 7k background    | 69             |