Measured bremsstrahlung photonuclear production of 99Mo ((99m)Tc) with 34 MeV to 1.7 GeV electrons

Appl Radiat Isot. 2015 Feb:96:122-128. doi: 10.1016/j.apradiso.2014.11.008. Epub 2014 Nov 14.

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.

Keywords: (99)Mo; (99m)Tc; Bremsstrahlung production.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Copper / radiation effects
  • Copper Radioisotopes / radiation effects
  • Drug Contamination
  • Electrons
  • Gamma Rays
  • Humans
  • Isotopes / radiation effects
  • Molybdenum / radiation effects*
  • Monte Carlo Method
  • Niobium / isolation & purification
  • Radioisotopes / isolation & purification
  • Radiopharmaceuticals / isolation & purification*
  • Technetium / isolation & purification*

Substances

  • Copper Radioisotopes
  • Isotopes
  • Radioisotopes
  • Radiopharmaceuticals
  • Niobium
  • Technetium
  • Copper
  • Molybdenum