151 Ho
67 84
Half life: 35.2 s 1
Jp: (11/2-)
Decay mode: e+b+, a
Sn (keV): 9.63E3 sy
Sp (keV): 1606 12
Prod. mode: Charged particle reaction
Literature cut-off date: 15-Jan-1997
Author(s): B. Singh
ENSDF citation: NDS 80, 263 (1997)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 78 3 5124 12
a 22 3 4695.1 19

Gammas from 151Ho (35.2 s 1)

Eg (keV) Ig (%) Decay mode
39.9 e+b+
100.7 3 * a
147.5 e+b+
172.0 e+b+
193.0 1 2.44 13 e+b+
209.5 2 5.69 25 e+b+
253.4 2 * a
256.5 2 1.63 19 e+b+
334.0 10 e+b+
350.8 8 0.44 25 e+b+
366.0 3 2.00 25 e+b+
459.1 2 2.13 25 e+b+
500.0 10 ~0.6 e+b+
527.4 1 63 e+b+
559.4 5 1.00 25 e+b+
580.5 10 ~0.6 e+b+
638.8 10 ~1.3 e+b+
667.3 10 0.8 4 e+b+
694.0 3 3.1 3 e+b+
775.3 e+b+
775.53 15 9.2 4 e+b+
803.0 10 ~0.31 e+b+
821.32 5 ~0.6 e+b+
871.0 10 ~1.3 e+b+
952.3 10 ~0.31 e+b+
995.8 5 1.25 25 e+b+
1021.5 5 1.6 4 e+b+
1039.0 15 1.1 9 e+b+
1045.7 2 2.6 3 e+b+
1081.4 3 1.75 19 e+b+
1147.8 7 ~0.6 e+b+
1185.7 10 ~0.6 e+b+
1196.3 5 1.3 3 e+b+
1434.3 6 0.81 25 e+b+
1549.7 2 4.6 3 e+b+
1571.4 6 0.63 25 e+b+
1779.1 3 2.00 19 e+b+
1807.7 6 0.38 13 e+b+
1881.4 3 1.75 19 e+b+
2026.9 5 0.81 19 e+b+
2055.7 8 0.69 25 e+b+
2090.4 11 0.38 19 e+b+

X-rays from 151Ho (35.2 s 1)

E (keV) I (%) Assignment
5,743 0.111 12 Dy Ll
6,458 0.291 20 Dy La2
6,495 2.62 18 Dy La1
6,534 0.038 3 Dy Lh
7,204 0.155 24 Dy Lb4
7,248 1.68 14 Dy Lb1
7,370 0.25 4 Dy Lb3
7,374 0.0275 19 Dy Lb6
7,636 0.54 4 Dy Lb2
8,426 0.291 25 Dy Lg1
8,714 0.049 8 Dy Lg2
8,753 0.070 12 Dy Lg3
44,743 0.00345 17 Dy Ka3
45,208 9.2 4 Dy Ka2
45,998 16.5 7 Dy Ka1
51,947 1.69 7 Dy Kb3
52,113 3.27 14 Dy Kb1
52,475 0.056 3 Dy Kb5
53,476 1.09 5 Dy Kb2
53,634 0.376 21 Dy Kb4

Betas from 151Ho (35.2 s 1)

>Eb endpoint (keV) Ib (%) Decay mode
1235,9 0.135 22 b+
1519,1 0.13 4 b+
1547,7 0.35 5 b+
2140,7 0.40 8 b+
2245,4 0.96 10 b+
2257,9 2.0 3 e
2541,1 1.0 3 e
2552,48 2.8 3 b+
2569,7 2.5 3 e
2753,3 0.291 21 b+
2767,5 1.6 3 b+
3117,25 1.3 3 b+
3133,39 0.06 b+
3162,7 0.99 20 e
3267,4 2.07 20 e
3574,48 4.0 4 e
3574,62 39.1 24 b+
3775,3 0.339 25 e
3789,5 1.8 3 e
4139,25 1.02 24 e
4155,39 0.040 e
4596,62 20.9 14 e

Alphas from 151Ho (35.2 s 1)

Ea (keV) Ia (%)
4220 3 0.032 4
4522.1 22 100