Citation
Vl. Alpatov et al., Measurement of the Mossbauer f factor for Te-125m gamma radiation in beryllium telluride, MEAS TECH R, 42(1), 1999, pp. 77-85
Citations number
25
Categorie Soggetti
Instrumentation & Measurement
Journal title
MEASUREMENT TECHNIQUES
ISSN journal
05431972
→ ACNP
Volume
42
Issue
1
Year of publication
1999
Pages
77 - 85
Database
ISI
SICI code
0543-1972(199901)42:1<77:MOTMFF>2.0.ZU;2-X
Abstract
The probability of recoil-free 35.5-keV gamma-ray emission from Te-125m and
the Debye temperature theta(D) of beryllium telluride were determined by m
easuring Mossbauer self-absorption of gamma radiation using a "black" absor
ber: The average value of theta(D) obtained from eight measurements with fo
ur samples of TeBe at three temperatures is 209 +/- 5 K, which is considera
bly lower than the expected value of 400 K. Possible reasons for the differ
ence are discussed. Control measurements with metallic Te and with TeO2 gav
e the following values for theta(D): 138.6 +/- 3.4 K for Te and 163 +/- 5 K
for TeO2, which are in satisfactory agreement with data of other studies.