ENSDF Decay Data in the MIRD
(Medical Internal Radiation Dose) Format
for 157Dy

66-DYSPROSIUM-157 66-DYSPROSIUM-157M
Additional Views or Possible Data Parent Information

66-DYSPROSIUM-157

Halflife = 8.14 Hours Aug-1996
Decay Mode: EC
Radiations


y(i)
(Bq-s)-1


E(i)
(MeV)


y(i)E(i)

ce-K, gamma 1 3.6510-02 8.82410-03 3.2210-04
ce-L, gamma 1 5.8410-03 5.21110-02 a 3.0410-04
ce-M, gamma 1 1.2910-03 5.88510-02 a 7.5810-05
ce-N+, gamma 1 3.6310-04 6.04210-02 a 2.2010-05
gamma 2 6.1610-03 8.30110-02 5.1210-04
ce-K, gamma 2 1.9810-02 3.10110-02 6.1410-04
ce-L, gamma 2 3.0810-03 7.43010-02 a 2.2910-04
ce-M, gamma 2 6.7810-04 8.10410-02 a 5.5010-05
ce-N+, gamma 2 1.9710-04 8.26110-02 a 1.6310-05
ce-K, gamma 3 1.5110-04 9.18310-02 1.3910-05
ce-L, gamma 3 8.1010-05 1.35110-01 a 1.0910-05
gamma 4 1.8410-02 1.82210-01 3.3510-03
ce-K, gamma 4 9.3810-04 1.30210-01 1.2210-04
ce-L, gamma 4 1.3510-04 1.73510-01 a 2.3410-05
gamma 5 1.9310-03 2.65310-01 5.1310-04
ce-K, gamma 5 3.7210-05 2.13310-01 7.9310-06
gamma 7 9.2010-01 3.26210-01 3.0010-01
ce-K, gamma 7 1.0510-02 2.74210-01 2.8910-03
ce-L, gamma 7 1.4610-03 3.17510-01 a 4.6410-04
ce-M, gamma 7 3.1310-04 3.24210-01 a 1.0110-04
gamma 12 8.0010-04 5.97510-01 4.7810-04
ce-K, gamma 12 1.2110-05 5.45510-01 6.5910-06
gamma 16 5.1510-04 7.45210-01 3.8410-04
gamma 18 5.4310-04 7.76610-01 4.2210-04
Kalpha1 X-ray 3.2410-02 4.44810-02 1.4410-03
Kalpha2 X-ray 1.8110-02 4.37410-02 7.9110-04
Kbeta X-ray 1.3010-02 5.04010-02 * 6.5710-04
Auger-K 4.3910-03 3.60010-02 * 1.5810-04
Auger-L 5.5510-02 5.00010-03 * 2.7710-04

Listed X, gamma, and gamma Radiations 3.0910-01
Omitted X, gamma, and gamma Radiations** 1.8310-03
Listed beta, ce, and Auger Radiations 5.7110-03
Omitted beta, ce, and Auger Radiations** 2.4510-05
Listed Radiations 3.1410-01
Omitted Radiations** 1.8610-03

*   Average Energy (MeV).
a   Maximum Energy (MeV) for subshell.
** Each omitted transition contributes <0.100% to Sumof y(i)E(i).


Terbium-157 Daughter is radioactive.





66-DYSPROSIUM-157M

Halflife = 21.6 Millisec Aug-1996
E(excitation) = 0.1995 MeV
Decay Mode: IT
Radiations


y(i)
(Bq-s)-1


E(i)
(MeV)


y(i)E(i)

gamma 1 3.5610-02 1.42010-02 5.0610-04
ce-L, gamma 1 3.2810-01 5.15410-03 a 1.6910-03
ce-M, gamma 1 7.4410-02 1.21510-02 a 9.0510-04
gamma 2 2.3010-01 3.73010-02 8.5810-03
ce-L, gamma 2 1.4710-01 2.82510-02 a 4.1410-03
ce-M, gamma 2 3.2310-02 3.52510-02 a 1.1410-03
gamma 3 1.7110-02 5.15010-02 8.8010-04
gamma 4 6.9010-02 6.10010-02 4.2110-03
ce-K, gamma 4 5.9510-01 7.21210-03 4.2910-03
ce-L, gamma 4 8.7810-02 5.19510-02 a 4.5610-03
ce-M, gamma 4 1.9310-02 5.89510-02 a 1.1310-03
ce-N+, gamma 4 5.5010-03 6.05810-02 a 3.3310-04
gamma 5 2.0910-01 8.70010-02 1.8210-02
ce-K, gamma 5 6.4510-01 3.32110-02 2.1410-02
ce-L, gamma 5 9.4610-02 7.79510-02 a 7.3710-03
ce-M, gamma 5 2.0810-02 8.49510-02 a 1.7610-03
ce-N+, gamma 5 5.9910-03 8.65810-02 a 5.1810-04
gamma 6 6.6710-02 1.48010-01 9.8710-03
ce-K, gamma 6 2.5910-02 9.42110-02 2.4410-03
ce-L, gamma 6 1.4310-02 1.39010-01 a 1.9910-03
ce-M, gamma 6 3.3810-03 1.46010-01 a 4.9310-04
ce-N+, gamma 6 9.3410-04 1.47610-01 a 1.3810-04
Kalpha1 X-ray 6.0410-01 4.60010-02 2.7810-02
Kalpha2 X-ray 3.3810-01 4.52110-02 1.5310-02
Kbeta X-ray 2.4510-01 5.21010-02 * 1.2710-02
L X-ray 3.4210-01 6.50010-03 * 2.2210-03
Auger-K 7.7910-02 3.72010-02 * 2.9010-03
Auger-L 1.40 5.16010-03 * 7.2110-03

Listed X, gamma, and gamma Radiations 1.0010-01
Listed beta, ce, and Auger Radiations 6.4410-02
Listed Radiations 1.6510-01

*   Average Energy (MeV).
a   Maximum Energy (MeV) for subshell.


Dysprosium-157 Daughter is radioactive.





This program and the accompanying data base have been produced by the National Nuclear Data Center located at the Brookhaven National Laboratory, Upton, N.Y., USA, with funding from the U.S. Department of Energy. Neither the BNL nor the USDOE make any warranty or assume any legal responsibility for the contents of the data base.
Generated by MIRD Wed May 17 9:32:24 2000

Additional Views or Possible Data for the Parent 157Dy
CSISRS Experimental neutron-induced reaction data in the Exchange Format (EXFOR)
157Dy CS List production cross section datasets
ENSDF Evaluated Nuclear Structure Data File
ENSDF All decay datasets for the parent. Isotope Explorer may be used as a helper to view these data on Win95/98/NT platforms. (55.8 kbytes)
Table Simple HTML tables of information contained in the decay datasets (Est. size: 48.2 kbytes. Est. time to generate: 5 seconds.)
Drawing PostScript file of the decay schemes in the Nuclear Data Sheets style (Est. size: 198.5 kbytes.)
MIRD PostScript files of the tables and decay schemes in the MIRD format
NSR Nuclear Science References
NuDat Nuclear Data File
Wallet Ground and metastable state properties
Radiations Decay Radiations

Parent Decays Feeding 157Dy
Parent Mode
157Dy IT
157Ho beta+/EC