Measurements and calculations of radionuclides created by [sup 181]Ta([gamma],xn yp) reactions for bremsstrahlung photons produced by 150-MeV electrons
- Oak Ridge National Lab., TN (United States)
Twenty-three radionuclides, including isomers, from [sup 168m]Lu to [sup 180]Ta, having half-lives between 7 min and 1.4 yr, produced by photon interactions with a sample of elemental tantalum, were observed in decay gamma-ray data obtained using high-resolution detection systems. Yields of production range over six orders of magnitude. The measured yield data for masses [>=] 171 were compared with calculated values. Good agreement was obtained for masses [>=] 174, but for lighter masses, the calculations tend to overestimate the experimental yields by up to a factor of 5. An empirical 'rule-or-two- is proposed, governing reduction in measured mass yield for each additional emitted nucleon following ([gamma], 3n) reactions. These results should have practical use not only for present electron accelerator operation but also for shielding calculations needed for future accelerator designs and applications.
- OSTI ID:
- 6521489
- Journal Information:
- Nuclear Science and Engineering; (United States), Vol. 114:2; ISSN 0029-5639
- Country of Publication:
- United States
- Language:
- English
Similar Records
Study of radionuclides created by {sup 181}Ta({gamma},xn yp) reactions for bremsstrahlung photons produced by 150-MeV electrons
''Yields of Radionuclides Created by Photonuclear Reactions on Be, C, Na, C1, and Ge, Using Bremsstrahlung of 150-MeV Electrons''
Related Subjects
43 PARTICLE ACCELERATORS
ACCELERATORS
SHIELDING
PHOTONUCLEAR REACTIONS
CROSS SECTIONS
TANTALUM 181 TARGET
BREMSSTRAHLUNG
COMPARATIVE EVALUATIONS
DESIGN
GAMMA DECAY
HALF-LIFE
ISOMERIC NUCLEI
ISOTOPE PRODUCTION
MEV RANGE 100-1000
NEUTRONS
NUCLEAR REACTION YIELD
ORELA
RADIOISOTOPES
BARYONS
DAYS LIVING RADIOISOTOPES
DECAY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
EVALUATION
FERMIONS
HADRONS
ISOTOPES
LINEAR ACCELERATORS
MEV RANGE
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
RADIATIONS
TARGETS
YEARS LIVING RADIOISOTOPES
YIELDS
663400* - Specific Nuclear Reactions & Scattering- (1992-)
663570 - Nuclear Mass Ranges- A=150-189- (1992-)
430100 - Particle Accelerators- Design
Development
& Operation