Double K -shell vacancy production in the electron capture decay of sup 139 Ce
- Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505 (US)
The probability of double {ital K}-shell vacancy production in the electron capture decay of {sup 139}Ce to the 166-keV level of {sup 139}La has been investigated. Triple coincidences between the 166-keV gamma ray, the La satellite {ital K}{alpha} x ray, and the La hypersatellite {ital K}{alpha} x ray were measured using two intrinsic Ge detectors. We looked for the sum of two of the three radiations in one detector in coincidence with the third radiation in the other detector. The probability of double {ital K}-shell vacancy production per {ital K}-shell electron capture ({ital P}{sub {ital K}{ital K}}) was found to be (2.0{plus minus}1.6){times}10{sup {minus}6}. From this and the known {ital P}{sub {ital K}{ital K}} for {sup 131}Cs we estimate a probability for zero {ital K}-shell vacancy production (shakedown) per {ital K}-shell electron capture of {approx lt}2.4{times}10{sup {minus}5} for {sup 139}Ce.
- OSTI ID:
- 5907251
- Journal Information:
- Physical Review, C (Nuclear Physics); (USA), Vol. 43:2; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
Double K-shell ionization accompanying the internal conversion of the 0. 166-MeV transition in /sup 139/La
Double K-shell vacancy creation in the decay of /sup 109/Pd and /sup 109/Cd
Related Subjects
CERIUM 139
K CAPTURE
EXPERIMENTAL DATA
LANTHANUM 139
X-RAY SPECTRA
BETA DECAY
BETA DECAY RADIOISOTOPES
CERIUM ISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
DECAY
ELECTRON CAPTURE DECAY
ELECTRON CAPTURE RADIOISOTOPES
EVEN-ODD NUCLEI
INFORMATION
INTERMEDIATE MAS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LANTHANUM ISOTOPES
MINUTES LIVING RADIOISOTOPES
NUCLEAR DECAY
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPECTRA
STABLE ISOTOPES
651720* - Nuclear Properties & Reactions
A=90-149
Experimental