Published 1998 | Version v1
Report Restricted

Precise measurement of gamma-ray emission probabilities for 171Er

Creators

  • 1. Nagoya Univ., Graduate School of Engineering, Nagoya, Aichi (Japan)

Description

A complete decay scheme for 171Er (β decay to 171Tm, T(1/2)=7.516 h) and its probability values for gamma-ray emissions are proposed. Precise emission probability of five gamma-rays at 111.6, 116.7, 124.0, 295.9, and 308.3 keV have been measured using 4πβ proportional counter with a high-purity Ge detector and 4πβ-γ coincidence technique. For other γ-rays of lower emission rate, relative emission spectra obtained from a high-disintegration rate source were utilized. Moreover, the reported internal conversion coefficient and the measured β-branching ratio decaying to a 5.0 keV-level of 171Tm were used to complete the final decay scheme which includes 63 gamma-ray emissions. The results were compared to the published tables of isotopes with some discussion. (Ohno, S.)

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Part of:
Proceedings of the specialist research meeting on scientific and engineering researches of unstable nuclei and on their nuclear methodology (3)

Additional details

Publishing Information

Imprint Title
Proceedings of the specialist research meeting on scientific and engineering researches of unstable nuclei and on their nuclear methodology (3)
Imprint Pagination
84 p.
Journal Page Range
p. 16-22
Report number
KURRI-KR--25

Conference

Title
3. specialist research meeting on scientific and engineering researches of unstable nuclei and on their nuclear methodology
Dates
16-17 Feb 1998
Place
Kumatori, Osaka (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
31043280
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ACCURACY; BRANCHING RATIO; EMISSION; EMISSION SPECTRA; ENERGY-LEVEL TRANSITIONS; ERBIUM 171; EVALUATED DATA; EXPERIMENTAL DATA; GAMMA DECAY; GAMMA RADIATION; GAMMA SPECTRA; NUCLEAR DATA COLLECTIONS; PROBABILITY
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DATA; DECAY; ELECTROMAGNETIC RADIATION; ERBIUM ISOTOPES; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INFORMATION; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; NUCLEAR DECAY; NUCLEI; NUMERICAL DATA; RADIATIONS; RADIOISOTOPES; RARE EARTH NUCLEI; SPECTRA

Optional Information

Notes
13 refs., 2 figs., 4 tabs.