THE DECAY OF Sb125

1964 ◽  
Vol 42 (9) ◽  
pp. 1700-1715 ◽  
Author(s):  
K. C. Mann ◽  
F. A. Payne ◽  
R. P. Chaturvedi
Keyword(s):  
Conversion Electron ◽  
Decay Scheme ◽  
Internal Conversion ◽  
Supporting Evidence ◽  
Spin Parity ◽  
Considerable Fraction ◽  
Gamma Coincidence ◽  
Self Consistent ◽  
Gamma Radiations

The beta, internal-conversion, and gamma radiations of Sb125–Te125 have been examined with magnetic and scintillation spectrometers, and by means of beta–gamma and conversion electron–gamma coincidence techniques. The results lead to self-consistent transition intensities, and completely support the decay scheme and spin–parity assignments of Narcisi (1958). There is evidence that a considerable fraction of the 633-keV radiation may originate at the 668-keV level. There is also supporting evidence for the 62-keV transition reported by Chandra and Pandharipande (1963).

THE DECAY OF Pm151

1963 ◽  
Vol 41 (1) ◽  
pp. 57-82 ◽  
Author(s):  
D. G. Burke ◽  
M. E. Law ◽  
M. W. Johns
Keyword(s):  
Half Life ◽  
Decay Scheme ◽  
Internal Conversion ◽  
Decay Energy ◽  
Gamma Coincidence ◽  
Coincidence Measurements

The radiations from Pm151 have been studied by external and internal conversion measurements and electron–electron, electron–beta, electron–gamma, and beta–gamma coincidence experiments. Thirty-six transitions have been identified. A decay scheme incorporating 30 of these has been established by energy and coincidence measurements with levels in Sm151 at 0, 0.0048, 0.0658, 0.0697, 0.0915, 0.1048, 0.1677, 0.1684, 0.2090, 0.3239, 0.3449, 0.4445, 0.741, and 0.821 Mev. The half-life of the 0.0048-Mev level is (19 ± 10) × 10−9 sec. The total decay energy is 1.195 ± 0.010 Mev.

THE DECAY OF Os191 AND Os193

1958 ◽  
Vol 36 (10) ◽  
pp. 1409-1429 ◽  
Author(s):  
S. V. Nablo ◽  
M. W. Johns ◽  
R. H. Goodman ◽  
A. Artna
Keyword(s):  
Excited States ◽  
Gamma Rays ◽  
Cross Sections ◽  
Decay Scheme ◽  
Internal Conversion ◽  
Gamma Ray ◽  
Internal Conversion Coefficients ◽  
Gamma Coincidence ◽  
Conversion Coefficients ◽  
Activation Cross Sections

The beta- and gamma-ray spectra of Os191 and Os193 have been studied with a magnetic beta-ray spectrometer, scintillation spectrometers, and coincidence circuits. The 14-hour isomer of Os191 decays via a 0.0742-Mev (M3) transition. Gamma rays of energy 0.0418 (100%, E3), 0.0809 (1%, M1 + E2), 0.1287 (100%, M1 + E2), and 0.1858 (0.1%) Mev have been found to be associated with the 14.6 ± 0.3 day decay of Os191 and an extension of the accepted decay scheme proposed. The following 19 transitions have been associated with the 31.5 ± 0.5 hour decay of Os193: 0.0730 (14%), 0.1068 (~1%), 0.1393 (10%), 0.180 (0.3%), 0.196 (0.1%), 0.243 (~0.2%), 0.2485 (0.3%), 0.2514 (0.4%), 0.278 (0.6%), 0.2810 (1.6%), 0.2885 (0.3%), 0.2994 (0.4%), 0.314 (0.3%), 0.3218 (1.7%), 0.3620 (0.6%), 0.3878 (1.6%), 0.4604 (4.1%), 0.4857 (0.3%), and 0.5585 (2.2%). The internal conversion coefficients for all the stronger transitions suggest that they are M1 + E2 in character. The decay energy of Os193 is 1.132 ± 0.005 Mev. Fermi analyses and beta–gamma coincidence experiments have established excited states of Ir193 at 0.073, 0.139, 0.281, 0.362, 0.460, and 0.559 Mev above the ground state. Six otherwise unclassified weak gamma rays can be accommodated if levels at 0.247, 0.315, and 0.613 Mev are included in the decay scheme.The activation cross sections of Os184 and Os190 are (2.2 ± 0.5) × 103and 5.3 ± 2 barns respectively, relative to Seren's value of 1.6 ± 0.4 barns for Os192.

Half-life and internal conversion electron measurements in low-lying levels of ^{125,127}Ba

2002 ◽  
Vol 65 (2) ◽  
Author(s):  
M. Shibata,1 ◽  
H. Iimura ◽  
M. Asai ◽  
A. Osa ◽  
K. Kawade ◽  
...  
Keyword(s):  
Conversion Electron ◽  
Half Life ◽  
Internal Conversion ◽  
Internal Conversion Electron

Photo-Driven Delivery of 125I-Labeled Nanomicelles for Nucleus-Targeted Internal Conversion Electron-Based Cancer Therapy

2021 ◽  
Author(s):  
Yuanyuan Qin ◽  
Mengling Shen ◽  
Xinpei Liu ◽  
Jingyu Gu ◽  
Minqian Zhu ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Conversion Electron ◽  
Internal Conversion ◽  
Internal Conversion Electron

Variation of half-life and internal-conversion electron energy spectrum between U235m oxide and fluoride

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Y. Shigekawa ◽  
Y. Kasamatsu ◽  
Y. Yasuda ◽  
M. Kaneko ◽  
M. Watanabe ◽  
...  
Keyword(s):  
Energy Spectrum ◽  
Electron Energy ◽  
Conversion Electron ◽  
Half Life ◽  
Internal Conversion ◽  
Electron Energy Spectrum ◽  
Internal Conversion Electron

Decay of 185Os

1969 ◽  
Vol 47 (18) ◽  
pp. 1899-1911 ◽  
Author(s):  
W. B. Cook ◽  
M. W. Johns
Keyword(s):  
Decay Scheme ◽  
Internal Conversion ◽  
Decay Energy ◽  
Coincidence Experiment ◽  
Coincidence Measurements ◽  
Two Parameter

The energies and intensities of 10 transitions in 185Re following the decay of 185Os have been determined using Ge(Li) detectors and a magnetic beta-ray spectrometer. Internal conversion measurements made at a resolution of 0.15% in momentum have yielded the multipole character of the 9 strongest transitions. The proposed decay scheme has been tested by a two parameter γ–γ coincidence experiment. The decay energy has been found to be 1012 ± 3 keV from γ–X coincidence measurements involving the 646, 717, 875 + 880, and 931 keV transitions.

DIRECTIONAL CORRELATIONS IN 127I

1966 ◽  
Vol 44 (6) ◽  
pp. 1313-1320 ◽  
Author(s):  
J. F. Neeson ◽  
J. P. Roalsvig ◽  
R. G. Arns
Keyword(s):  
Correlation Functions ◽  
Decay Scheme ◽  
Short Discussion ◽  
Gamma Coincidence ◽  
Decay Sequence ◽  
Spin Sequence ◽  
Coincidence Measurements

Gamma–gamma coincidence measurements on the decay of 9.3-hour 127Te to 127I form the basis of the decay scheme presented, which confirms the accepted decay sequence. Directional correlation measurements have been made on the 215–203 keV and 360–58 keV cascades. The respective correlation functions are:[Formula: see text]The directional correlation results have been interpreted in terms of the accepted spin sequence, and limits of multipole mixtures are presented. A short discussion of the collective properties of the levels is presented.

Internal-Conversion-Electron Study of the Decay ofBa133toCs133

1967 ◽  
Vol 159 (4) ◽  
pp. 955-968 ◽  
Author(s):  
Hans J. Hennecke ◽  
J. C. Manthuruthil ◽  
O. Bergman ◽  
C. R. Cothern
Keyword(s):  
Conversion Electron ◽  
Internal Conversion ◽  
Internal Conversion Electron ◽  
Electron Study
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