Measured bremsstrahlung photonuclear production of 99Mo (99mTc) with 34 MeV to 1.7 GeV electrons
2014; Elsevier BV; Volume: 96; Linguagem: Inglês
10.1016/j.apradiso.2014.11.008
ISSN1872-9800
AutoresAllan Roberts, C. G. R. Geddes, N. H. Matlis, K. Nakamura, James P. O’Neil, B. H. Shaw, S. Steinke, J. van Tilborg, Wim Leemans,
Tópico(s)Fusion materials and technologies
Resumo99Mo photonuclear yield was measured using high-energy electrons from Laser Plasma Accelerators and natural molybdenum. Spectroscopically resolved electron beams allow comparisons to Monte Carlo calculations using known 100Mo(γ,n)99Mo cross sections. Yields are consistent with published low-energy data, and higher energy data are well predicted from the calculations. The measured yield is (15±2)×10−5 atoms/electron (0.92±0.11 GBq/μA) for 25 mm targets at 33.7 MeV, rising to (1391±20)×10−5 atoms/electron (87±2 GBq/μA) for 54 mm/ 1.7 GeV, with peak power-normalized yield at 150 MeV.
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