Published 2001 | Version v1
Journal article Metadata-only

Investigation of decay of 175Hf and 181Hf radionuclides

Creators

  • 1. GNTs RF Nauchno-Issledovatel'skij Inst. Atomnykh Reaktorov, Dimitrovgrad (Russian Federation)

Description

Nuclear physical properties of 175Hf and 181Hf radionuclides prepared by irradiation of nature hafnium by neutrons of nuclear reactor SM-3 were investigated. X-ray and γ-spectra were measured by HPGe- and Ge(Li)-detectors of high energy resolution. Half-life for 175Hf is 71.9±1.3 and for 181Hf - 42.12±0.25 days. Relative intensities of 181Hf γ-radiation are for energies (keV) 133.03 - 54±1.6, (136.28 and 136.86) - 8.9±0.3, 345.919 - 20.4±0.6, 482.193 - 100. Ratios of intensities for x-ray spectrum were determined as follows: 175LuKβ1,3/175LuKβ2=3.96(12), 181TaKβ1,3/181Kβ2=3.72(11), 175LuKα1/175LuKα2=1.74(5), 181TaKα1/181TaKα2=1.70(5)

Abstract (Russian)

Исследованы ядерно-физические свойства нуклидов 175Hf и 181Hf, полученных при облучении природного гафния нейтронами ядерного реактора СМ-3. Спектры рентгеновского и γ-излучения измеряли с помощью HPGe- и Ge(Li)-детекторов высокого энергетического разрешения. Определены периоды полураспада для 175Hf - 71.9±1.3 и 181Hf - 42.12±0.25 сут. Относительные интенсивности γ-излучения нуклида 181Hf для энергий (кэВ): 133.03 - 54±1.6, (136.28 и 136.86) - 8.9±0.3, 345.919 - 20.4±0.6, 482.193 - 100. Для рентгеновского спектра измерены отношения интенсивностей: 175LuKβ1,3/175LuKβ2=3.96(12), 181TaKβ1,3/181Kβ2=3.72(11), 175LuKα1/175LuKα2=1.74(5), 181TaKα1/181TaKα2=1.70(5)

Additional details

Additional titles

Original title (Russian)
Исследование распада радионуклидов

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
43
Journal Issue
6
Journal Page Range
p. 481-484
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34012533
Subject category
S07: ISOTOPES AND RADIATION SOURCES;
Descriptors DEI
BETA-MINUS DECAY; ELECTRON CAPTURE DECAY; GAMMA SPECTRA; HAFNIUM 175; HAFNIUM 181; HALF-LIFE; HIGH-PURITY GE DETECTORS; LI-DRIFTED GE DETECTORS; X-RAY SPECTRA
Descriptors DEC
BETA DECAY; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; DECAY; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; GE SEMICONDUCTOR DETECTORS; HAFNIUM ISOTOPES; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; ISOTOPES; LI-DRIFTED DETECTORS; MEASURING INSTRUMENTS; NUCLEAR DECAY; NUCLEI; RADIATION DETECTORS; RADIOISOTOPES; SEMICONDUCTOR DETECTORS; SPECTRA

Optional Information

Notes
27 refs.; 4 tabs.; 2 figs.