Authors:
Kyung Kim Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

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MD. Rahman Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

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Manwoo Lee Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

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Guinyun Kim Department of Physics, Kyungpook National University, Daegu, 702-701 Republic of Korea

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Pham Khue Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Viet Nam

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

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Moo-Hyun Cho Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea

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In Ko Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea

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Won Namkung Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Republic of Korea

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H. Naik Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085 India

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Tae-Ik Ro Department of Physics, Dong-A University, Busan, 604-714 Republic of Korea

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Abstract  

We measured the isomeric yield ratios for the photonuclear reactions of 93Nb(γ,4n)89m,gNb and natMo(γ,xnp)95m,gNb by using the activation method. The high-purity 93Nb and natMo metallic foils in disc shape were irradiated with uncollimated bremsstrahlung beams of 50-, 60-, and 70-MeV generated from an electron linear accelerator in Pohang Accelerator Laboratory. The induced activities in the irradiated foils were measured by the high-resolution γ-ray spectrometry with a calibrated high-purity Germanium (HPGe) detector coupled to a PC-based 4 K multichannel analyzer. The reaction 93Nb(γ,4n)89m,gNb was studied for the first time which has no comparable literature data. The result of 95m,gNb isomeric pair was measured based on (γ,p), (γ,np), and (γ,2np) reactions which is the first measurement at the intermediate energy region of 50–70-MeV with a natMo target.

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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)