New measurements of 92Mo(γ, n) and (γ, 3n) reactions using laser-driven bremsstrahlung γ-ray

• Published in: Frontiers in physics Vol. 11
• Main Authors: Wu, D., Lan, H. Y., Zhang, J. Y., Liu, J. X., Lu, H. G., Lv, J. F., Wu, X. Z., Zhang, H., Cai, J., Xu, X. L., Geng, Y. X., Ma, W. J., Lin, C., Zhao, Y. Y., Wang, H. R., Liu, F. L., He, C. Y., Yu, J. Q., Guo, B., Wang, N. Y., Yan, X. Q.
• Format: Journal Article
• Language: English
• Published: Frontiers Media S.A 24.04.2023
• Subjects: 92Mo(γ, n)91m,gMo; 92Mo(γ,3n)89Mo; flux-weighted average cross section; isomeric ratio; laser-driven γ-ray; photonuclear reaction
• ISSN: 2296-424X; 2296-424X
• DOI: 10.3389/fphy.2023.1178257

The flux-weighted average cross sections and isomeric ratios of 92 Mo( γ , n) 91m,g Mo and 92 Mo( γ , 3n) 89 Mo reactions were measured through activation methods. Laser-driven bremsstrahlung γ -ray were generated by the laser wakefield accelerated quasi-monoenergetic electrons using the 200 TW laser in the Compact Laser Plasma Accelerator laboratory, Peking University. The results showed good agreements with previous works using traditional γ -ray sources, and were compared with TALYS 1.9 calculations. We extended the experimental results of 92 Mo photonuclear reactions to higher energies, the experimental discrepancies of 92 Mo( γ , n) 91m,g Mo isomeric ratios at high energy region were clarified, and the cross sections of 92 Mo( γ , 3n) 89 Mo reaction were first obtained.