Inner-shell ionization in the K-electron capture decay of /sup 181/W
The probability P/sub KK/ of double K-shell vacancy production during K-electron capture in the /sup 181/W to /sup 181/Ta transition is measured to be (1.25 +- 0.42) x 10/sup -5/ by observing Ta hypersatellites in coincidence with Ta K x rays using high resolution semiconductor detectors. This value is found to be in agreement with the estimate made using Intemann's theoretical calculation of the K-electron ejection probability, P/sub ej/, and Mukoyama's ratio of the probabilities for excitation and ejection, P/sub ex//P/sub ej/. The energy shift of the Ta hypersatellite with respect to the normal Ta K..cap alpha../sub 1/ x ray is found to be 1085 +- 70 eV. The probabilities of K-electron capture in the decay of /sup 181/W to the levels at 136.3 and 158.7 keV are found to be 0.152 +- 0.086 and 0.090 +- 0.028 respectively.
- Research Organization:
- Emory Univ., Atlanta, GA (USA)
- OSTI ID:
- 6235411
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
A=150-189
Experimental-- Radioactive Decay-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY
DATA
DAYS LIVING RADIOISOTOPES
DECAY
ELECTRON CAPTURE DECAY
ELECTRON CAPTURE RADIOISOTOPES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HEAVY NUCLEI
INFORMATION
ISOTOPES
K CAPTURE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
RADIOISOTOPES
SPECTRA
SPECTRAL SHIFT
STABLE ISOTOPES
TANTALUM 181
TANTALUM ISOTOPES
TUNGSTEN 181
TUNGSTEN ISOTOPES
X-RAY SPECTRA