
LS 6000 Scintillation System User’s Manual
PN 247971-F
d-5
Isotope Settings and Half-Life
d
Figure d.3 Conversion Factors.
1 becquerel (Bq) therefore, = 1 nuclear transformation/second (DPS)
1 curie (Cl)
= 2.22 x 10
12
DPM
= 3.7 x 10
10
DPS
= 37 glgabecquerels (GBq)
1 millicurle (mCi)
= 2.22 x 10
9
DPM
= 3.7 x 10
7
DPS
= 37 kilobecquerels (kBq)
1 microcurie (µCl)
= 2.22 x10
6
DPM
= 3.7x 10
4
DPS
= 37 kilobecquerels (kBq)
1 glgabecquerel (GBq) = 27.027 millicuries (mCI)
1 megabecquerel (MGq) = 27.027 microcuries (µCi)
1 kilobecquerel (kGq) = 27.027 nanocuries (nCi)
Figure d.4
3
H Hydrogen-3(Tritium) Half-Life: 12.35 years.
Months
0 1 2 3 4 5 6 7 8 9 10 11
Years
0 1.0000 0.9953 0.9907 0.9860 0.9814 0.9768 0.9723 0.9677 0.9632 0.9587 0.9542 0.9498
1 0.9453 0.9409 0.9365 0.9321 0.9278 0.9235 0.9191 0.9148 0.9106 0.9063 0.9021 0.8979
2 0.8937 0.8895 0.8853 0.8812 0.8771 0.8730 0.8688 0.8648 0.8608 0.8568 0.8528 0.8488
3 0.8448 0.8409 0.8369 0.8330 0.8291 0.8252 0.8214 0.8176 0.8137 0.8099 0.8061 0.8024
4 0.7987 0.7949 0.7912 0.7875 0.7838 0.7801 0.7765 0.7729 0.7692 0.7656 0.7621 0.7585
5 0.7550 0.7514 0.7479 0.7444 0.7410 0.7375 0.7340 0.7306 0.7272 0.7238 0.7204 0.7170
6 0.7137 0.7104 0.7070 0.7037 0.7005 0.6972 0.6939 0.6907 0.6875 0.6842 0.6810 0.6779
7 0.6747 0.6715 0.6684 0.6653 0.6622 0.6591 0.6560 0.6529 0.6499 0.6468 0.6438 0.6408
8 0.6378 0.6348 0.6319 0.6289 0.6260 0.6230 0.6201 0.6172 0.6143 0.6115 0.6086 0.6058
9 0.6029 0.6001 0.5973 0.5945 0.5917 0.5890 0.5863 0.5835 0.5808 0.5780 0.5753 0.5727
10 0.5700 0.5673 0.5647 0.5620 0.5594 0.5568 0.5542 0.5516 0.5490 0.5464 0.5439 0.5414
11 0.5388 0.5363 0.5338 0.5313 0.5288 0.5263 0.5239 0.5214 0.5190 0.5166 0.5142 0.5118
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