Measurement of isomeric yield ratios for Zr-90(gamma, n)Zr-89m,Zr-g, Zr-nat(gamma, xn1P)Y-86m,Y-g, and Y-89(gamma, xn)Y-87m,Y-g,Y-86m,Y-g reactions with 50-, 60-, and 70-MeV bremsstrahlung
SCIE
SCOPUS
- Title
- Measurement of isomeric yield ratios for Zr-90(gamma, n)Zr-89m,Zr-g, Zr-nat(gamma, xn1P)Y-86m,Y-g, and Y-89(gamma, xn)Y-87m,Y-g,Y-86m,Y-g reactions with 50-, 60-, and 70-MeV bremsstrahlung
- Authors
- Rahman, MS; Kim, KS; Lee, M; Kim, GN; Oh, Y; Lee, HS; CHO, MOO HYUN; Ko, IS; NAMKUNG, WON; Van Do, N; Khue, PD; Thanh, KT; Ro, TI
- Date Issued
- 2009-11
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- We measured the isomeric yield ratios in the photonuclear reactions of Zr-nat(gamma, n)Zr-89m,Zr-g, Zr-nat(gamma, xn1p)Y-86m,Y-g, and 89Y(gamma, xn)Y-87m,Y-g,Y-86m,Y-g by the activation method. The high-purity natural Zr and Y metallic foils in disc shape were irradiated with uncollimated bremsstrahlung beams of 50-, 60-, and 70-MeV generated from an electron linear accelerator at Pohang Accelerator Laboratory. The induced activities in the irradiated foils were measured by the high-resolution gamma-ray spectrometric system consisting of a high-purity germanium detector and a multichannel analyzer. The obtained isomeric yield ratios in the formation of Zr-89m,Zr-g, Y-87m,Y-g, and Y-86m,Y-g are compared with the corresponding values found in the literature. The measured isomeric yield ratios at the bremsstrahlung energies of 50-, 60-, and 70-MeV are the first measurement except Y-87 at 50-MeV bremsstrahlung. (C) 2009 Elsevier B.V. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/27274
- DOI
- 10.1016/J.NIMB.2009.08.024
- ISSN
- 0168-583X
- Article Type
- Article
- Citation
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, vol. 267, no. 21-22, page. 3511 - 3518, 2009-11
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