Measured bremsstrahlung photonuclear production of 99Mo (99mTc) with 34 MeV to 1.7 GeV electrons. (February 2015)

• Record Type: Journal Article
• Authors: Roberts, A.D.; Geddes, C.G.R.; Matlis, N.; Nakamura, K.; O'Neil, J.P.; Shaw, B.H.; Steinke, S.; van Tilborg, J.; Leemans, W.P.
• Is Part Of: Applied radiation and isotopes. Volume 96(2015:Feb.)
• Page Start: 122
• Page End: 128
• Publication Date: 2015-02
• Subjects: 99mTc -- 99Mo -- Bremsstrahlung production; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2014.11.008
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: 99 Mo 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 100 Mo(γ, n) 99 Mo 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. Highlights: 99 Mo yields with high energy electrons. Increased yield and specific activity. Non-reactor based 99m Tc production.