Obsidian/300s School/NUCE 2113 - Radiation Detection and Measurement/Laboratory 4.md

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 minutes - 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
3448
7367
1k + 3k
2000+3000
3000+7000
2000+7000	357
2x 7k	290
2x 7k +1k