Measurement of isomeric yield ratios of 99m,g;101m,g;102m,gRh in the natPd(γ,pxn) reactions with the bremsstrahlung end-point energies of 50-70MeV

Nguyen Van Do; Pham Duc Khue; Kim Tien Thanh; Nguyen Thi Hien; Guinyun Kim; Kwangsoo Kim; Sung-Gyun Shin; Yong-Uk Kye; Moo-Hyun Cho

doi:10.1016/j.apradiso.2017.06.024

Measurement of isomeric yield ratios of ^{99m,g;101m,g;102m,g}Rh in the ^natPd(γ,pxn) reactions with the bremsstrahlung end-point energies of 50-70MeV

Appl Radiat Isot. 2017 Oct:128:148-153. doi: 10.1016/j.apradiso.2017.06.024. Epub 2017 Jun 20.

Authors

Nguyen Van Do¹, Pham Duc Khue¹, Kim Tien Thanh¹, Nguyen Thi Hien², Guinyun Kim³, Kwangsoo Kim⁴, Sung-Gyun Shin⁵, Yong-Uk Kye⁵, Moo-Hyun Cho⁵

Affiliations

¹ Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Vietnam.
² Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Vietnam; Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea.
³ Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea. Electronic address: gnkim@knu.ac.kr.
⁴ Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea.
⁵ Division of Advanced Nuclear Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea.

PMID: 28710935
DOI: 10.1016/j.apradiso.2017.06.024

Abstract

The isomeric yield ratios of ^99m,gRh, ^101m,ggRh, and ^102m,gRh isomeric pairs produced from the ^natPd(γ,pxn) reactions were measured with the bremsstrahlung end-point energies of 50-, 55-, 60-, 65-, and 70-MeV at the 100MeV electron linac of the Pohang Accelerator Laboratory, Korea. The measurements were carried out with the activation method in combination with off-line γ-ray spectrometry. In order to improve the accuracy of the activity measurements, the separation of the overlapping γ-rays and the necessary corrections for the counting losses were made. The new experimental results are compared with the theoretical values of the TALYS-1.6 code.

Keywords: (nat)Pd(γ,pxn)(99m,g;101m,g;102m,g)Rh reactions; Activation method; Isomeric yield ratio; Off-line γ-ray spectrometry.