Authors:
Nguyen Do Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Viet Nam

Search for other papers by Nguyen Do in
Current site
Google Scholar
PubMed
Close
,
Pham Khue Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Viet Nam

Search for other papers by Pham Khue in
Current site
Google Scholar
PubMed
Close
,
Kim Thanh Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Viet Nam

Search for other papers by Kim Thanh in
Current site
Google Scholar
PubMed
Close
,
Tran Nam Institute of Nuclear Engineering and Environmental Physics, Hanoi University of Technology, 1 Dai Co Viet, Hanoi, Viet Nam

Search for other papers by Tran Nam in
Current site
Google Scholar
PubMed
Close
,
Md. Rahman Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

Search for other papers by Md. Rahman in
Current site
Google Scholar
PubMed
Close
,
Kyung-Sook Kim Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

Search for other papers by Kyung-Sook Kim in
Current site
Google Scholar
PubMed
Close
,
Manwoo Lee Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

Search for other papers by Manwoo Lee in
Current site
Google Scholar
PubMed
Close
,
Guinyun Kim Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

Search for other papers by Guinyun Kim in
Current site
Google Scholar
PubMed
Close
,
Hee-Seock Lee Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea

Search for other papers by Hee-Seock Lee in
Current site
Google Scholar
PubMed
Close
,
Moo-Hyun Cho Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea

Search for other papers by Moo-Hyun Cho in
Current site
Google Scholar
PubMed
Close
,
In Ko Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea

Search for other papers by In Ko in
Current site
Google Scholar
PubMed
Close
, and
Won Namkung Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea

Search for other papers by Won Namkung in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

We measured the isomeric yield ratios for the 44m,gSc isomeric pairs produced from different reaction channels 45Sc(γ,n)44m,gSc and natTi(γ,xnp)44m,gSc by using the activation method and γ-ray spectroscopic methods at 50-, 60-, and 70-MeV bremsstrahlung energies. The high-purity natural Sc and Ti foils in disc shape were irradiated with uncollimated bremsstrahlung beams generated from an electron linear accelerator at Pohang Accelerator Laboratory. The induced activities in the irradiated foils were measured by the high-resolution γ-ray spectrometric system which consists of a high-purity Germanium detector and a multichannel analyzer. In order to improve the accuracy of the experimental results the necessary corrections were made in the γ-ray activity measurements and data analysis. The measured isomeric yield ratios for the 45Sc(γ,n)44m,gSc reaction are 0.20 ± 0.02, 0.21 ± 0.02, and 0.21 ± 0.02 and those for the natTi(γ,xnp)44m,gSc reaction are 0.063 ± 0.012, 0.079 ± 0.014, and 0.124 ± 0.022 at 50-, 60-, and 70-MeV bremsstrahlung energies, respectively. The obtained results are compared with the corresponding values found in the literature. We observed that the isomeric yield ratios for the 45Sc(γ,n)44m,gSc reaction increase rapidly with the increasing bremsstrahlung energies from the reaction threshold up to giant resonance region, and then those are almost constant in the energy range from about 30 to 2.5 GeV. The isomeric yield ratios for the natTi(γ,xnp)44m,gSc reaction increase with increasing bremsstrahlung energies in a wide range of bremsstrahlung energies from 50 to 2.5 GeV.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)