Determination of Q Values for Electron-Capture Decay of 172Hf and 188Pt from X-Ray Intensities

1980 ◽  
pp. 459-464
Author(s):  
Y. A. Ellis ◽  
K. S. Toth
Keyword(s):  
Electron Capture ◽  
Electron Capture Decay ◽  
X Ray ◽  
Q Values

K X-ray gamma-ray directional correlation in the decay of 114Inm with a sum-peak-coincidence scintillation spectrometer

1970 ◽  
Vol 48 (12) ◽  
pp. 1514-1517 ◽  
Author(s):  
D. S. Murty ◽  
K. V. Ramana Rao ◽  
P. Jagam ◽  
V. Lakshminarayana
Keyword(s):  
Electron Capture ◽  
Gamma Ray ◽  
Electron Capture Decay ◽  
X Ray

The evidence obtained for the existence of the K X-ray gamma-ray directional correlation by Perepelkin against the predictions of the theory of Dolginov evoked considerable interest in this field. The electron capture decay of 114Inm is used to advantage in the present investigation with a sum-peak-coincidence scintillation spectrometer. The results obtained are consistent with the theory of Dolginov.

Half-Life Determination of 41Ca and Some Other Radioisotopes

Radiocarbon ◽  
1992 ◽  
Vol 34 (3) ◽  
pp. 436-446 ◽  
Author(s):  
Walter Kutschera ◽  
Irshad Ahmad ◽  
Michael Paul
Keyword(s):  
Mass Spectrometry ◽  
Electron Capture ◽  
Half Life ◽  
Specific Activity ◽  
Low Energy ◽  
X Rays ◽  
Weighted Mean ◽  
Electron Capture Decay

We have performed a new determination of the half-life of 41Ca by measuring the specific activity of an enriched Ca material with known 41Ca abundance. We measured the activity via the 3.3-keV X-rays emitted in the electron capture decay of 41Ca, and the 41Ca abundance was measured by low-energy mass spectrometry. The result, t1/2 = (1.01 ± 0.10) × 105 yr, agrees with the recent ‘geological’ half-life of Klein et al., (1991), t1/2 = (1.03 ± 0.07) × 105 yr, and with the corrected value of Mabuchi et al. (1974), t1/2 = (1.13 ± 0.12) × 105 yr. We recommend the weighted mean of these three measurements, t1/2 = (1.04 ± 0.05) × 105 yr, as the most probable half-life of 41Ca. We also discuss the situation of the radioisotopes, 32Si, 44Ti, 79Se and 126Sn, whose half-lives, though still uncertain, are potentially interesting for future AMS studies and other applications.

DETERMINATION OF THE DISINTEGRATION RATE OF NUCLIDES DECAYING BY ELECTRON CAPTURE

1961 ◽  
Vol 39 (3) ◽  
pp. 717-728 ◽  
Author(s):  
J. R. S. Drouin ◽  
L. Yaffe
Keyword(s):  
Electron Capture ◽  
Energy Resolution ◽  
Proportional Counter ◽  
Path Length ◽  
Average Path Length ◽  
Gas Pressure ◽  
Disintegration Rate ◽  
X Ray

In an attempt to determine disintegration rates of nuclides decaying by electron capture, various properties of a 2π proportional counter spectrometer were studied. These included gas multiplication, energy resolution, and energy linearity. The result of varying anode size, gas pressure, and nature of the gas was also investigated. An experimentally determined average path length for characteristic X-ray energies between 4 and 24 kev was found.

X-ray spectroscopy related to the determination of electron-capture ratios

1969 ◽  
Vol 73 (3) ◽  
pp. 323-332 ◽  
Author(s):  
H.E. Bosch ◽  
M.A. Fariolli ◽  
N. Martin ◽  
M.C. Simon
Keyword(s):  
Electron Capture ◽  
X Ray
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