Thorium-232 Decay Chain - Panasonic PT-DZ12000U Operating Instructions Manual

Thorium-232 Decay Chain including thoron
st
1 Progeny
232 228
Th Ra
1.41E10y
228 228
Ra Ac
5.75y
228 228
Ac Th
6.13h
(1.6)
228 224
Th Ra
1.91y
224 220
Ra Rn
3.62d
220
Rn is "thoron" gas, usually included with "radon" gas
220 216
Rn Po
56s
kev and % abundance
á 3830 (0.2), 3953 (23), 4010 (77)
ã 59 (0.19), 125 (0.04)
Ra x-rays 12 (8.4)
-
â 39 (100)
-
â 606 (8), 1168 (32), 1741 (12)
ã 338 (11.4), 911 (27.7), 969 (16.6)
Th x-rays 13 (39), 90 (2.1), 93 (3.5), 105
á 5212 (0.4), 5341 (26.7), 5423 (72.7)
ã 84 (1.2), 132 (0.12), 216 (0.24)
Ra x-rays 12 (9.6)
á 5449 (4.9), 5686 (95.1)
ã 241 (3.95)
Rn x-rays 12 (0.4), 81 (0.126), 84 (0.209)
6288 (99.9), 5747 (0.1)
á
ã av. 550 (0.1)
22