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Excitation of the high-spin isomers {sup 180m} Hf, {sup 190m} Os and {sup 204m} Pb in ({gamma}, {gamma}`) reactions

Abstract

Excitation of isomeric states of {sup 180} Hf (J{sub m}{sup {pi}} = 8{sup -}), {sup 190} Os (J{sub m}{sup {pi}} = 10{sup -}) and {sup 204} Pb (J{sub m}{sup {pi}} = 9{sup -}) is studied for ({gamma}, {gamma}`) reactions. The cross sections and isomeric ratios are measured using activation technique in the energy region from 6 up to 15 MeV. Experimental results were compared with statistical theory predictions. A relative contribution of different {gamma}-ray multipolarities into the process of the population of isomeric states excited in the photoabsorption reaction and {gamma}-cascade is investigated. (author). 32 refs.; 4 figs.; 2 tabs.
Authors:
Balabanov, N P; [1]  Belov, A G; Gangrskij, Yu P; Kondev, F G; Tonchev, A P [2] 
  1. Plovdivski Univ., Plovdiv (Bulgaria)
  2. Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Reactions
Publication Date:
Dec 31, 1993
Product Type:
Technical Report
Report Number:
JINR-E-15-93-370
Reference Number:
SCA: 663400; 663580; PA: AIX-25:032527; EDB-94:072394; NTS-94:020655; SN: 94001192989
Resource Relation:
Other Information: DN: Submitted to Zeitschrift fuer Physik. A, Atomic Nuclei.; PBD: 1993
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; PHOTONUCLEAR REACTIONS; ISOMER RATIO; BREMSSTRAHLUNG; CROSS SECTIONS; ELASTIC SCATTERING; EXCITATION FUNCTIONS; GAMMA DECAY; GIANT RESONANCE; HAFNIUM 180; HIGH SPIN STATES; ISOMERIC NUCLEI; LEAD 204; MEV RANGE 01-10; MEV RANGE 10-100; NUCLEAR REACTION YIELD; OSMIUM 190; STATISTICS; 663400; 663580; SPECIFIC NUCLEAR REACTIONS AND SCATTERING; A = 190-219
OSTI ID:
10144993
Research Organizations:
Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Reactions
Country of Origin:
JINR
Language:
English
Other Identifying Numbers:
Other: ON: DE94622922; TRN: XJ9406301032527
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
16 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Balabanov, N P, Belov, A G, Gangrskij, Yu P, Kondev, F G, and Tonchev, A P. Excitation of the high-spin isomers {sup 180m} Hf, {sup 190m} Os and {sup 204m} Pb in ({gamma}, {gamma}`) reactions. JINR: N. p., 1993. Web.
Balabanov, N P, Belov, A G, Gangrskij, Yu P, Kondev, F G, & Tonchev, A P. Excitation of the high-spin isomers {sup 180m} Hf, {sup 190m} Os and {sup 204m} Pb in ({gamma}, {gamma}`) reactions. JINR.
Balabanov, N P, Belov, A G, Gangrskij, Yu P, Kondev, F G, and Tonchev, A P. 1993. "Excitation of the high-spin isomers {sup 180m} Hf, {sup 190m} Os and {sup 204m} Pb in ({gamma}, {gamma}`) reactions." JINR.
@misc{etde_10144993,
title = {Excitation of the high-spin isomers {sup 180m} Hf, {sup 190m} Os and {sup 204m} Pb in ({gamma}, {gamma}`) reactions}
author = {Balabanov, N P, Belov, A G, Gangrskij, Yu P, Kondev, F G, and Tonchev, A P}
abstractNote = {Excitation of isomeric states of {sup 180} Hf (J{sub m}{sup {pi}} = 8{sup -}), {sup 190} Os (J{sub m}{sup {pi}} = 10{sup -}) and {sup 204} Pb (J{sub m}{sup {pi}} = 9{sup -}) is studied for ({gamma}, {gamma}`) reactions. The cross sections and isomeric ratios are measured using activation technique in the energy region from 6 up to 15 MeV. Experimental results were compared with statistical theory predictions. A relative contribution of different {gamma}-ray multipolarities into the process of the population of isomeric states excited in the photoabsorption reaction and {gamma}-cascade is investigated. (author). 32 refs.; 4 figs.; 2 tabs.}
place = {JINR}
year = {1993}
month = {Dec}
}