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- Title
Measurement of isomeric yield ratios for Nb(γ,4n)Nb and Mo(γ,xn1p)Nb reactions with 50-, 60-, and 70-MeV bremsstrahlung.
- Authors
Kim, Kyung; Rahman, MD.; Lee, Manwoo; Kim, Guinyun; Khue, Pham; Do, Nguyen; Cho, Moo-Hyun; Ko, In; Namkung, Won; Naik, H.; Ro, Tae-Ik
- Abstract
We measured the isomeric yield ratios for the photonuclear reactions of Nb(γ,4n)Nb and Mo(γ,xnp)Nb by using the activation method. The high-purity Nb and Mo 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 Nb(γ,4n)Nb was studied for the first time which has no comparable literature data. The result of Nb 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 Mo target.
- Subjects
CHEMICAL reactions; BREMSSTRAHLUNG; PHOTONUCLEAR reactions; ACTIVATION (Chemistry); METAL foils; ELECTRON accelerators; PHYSICS laboratories; GAMMA ray spectrometry
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2011, Vol 287, Issue 3, p869
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-010-0839-3