Spallation cross sections and the LAMPF medical radioisotope program. [Six hundred to eight hundred MeV]
The intense beam of medium-energy protons (600 to 800 MeV) from the LAMPF accelerator will be used to prepare multi-curie quantities of radioisotopes of value in diagnostic and therapeutic nuclear medicine. Thin-target cross section measurements of spallation-induced reactions represent a significant segment of the LASL Medical Radioisotope Research Program, as these data provide a basis for calculating specific radioisotope yields in thick targets, evaluating potential isotopic interferences, and monitoring hot-cell operations. Recent measurements include the cross sections (cumulative yields) of /sup 123/I, /sup 127/Xe, /sup 82/Sr, and /sup 43/K formed in the interaction of 800-MeV protons with La, Mo, and V targets; they are reported to be 51 +- 3 mb, 51 +- 7 mb, 24.5 +- 0.8 mb, and 5.4 +- 0.3 mb, respectively. Comparison with previous results at 590 MeV are made, and quantity and product quality estimates are presented for biomedical isotopes under the irradiation conditions expected to prevail at LAMPF. (auth)
- Research Organization:
- Los Alamos Scientific Lab., NM
- OSTI ID:
- 7187218
- Journal Information:
- Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States), Journal Name: Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States) Vol. 425; ISSN XNBSA
- Country of Publication:
- United States
- Language:
- English
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALUMINIUM 27 TARGET
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ELEMENTS
ENERGY RANGE
HADRON REACTIONS
ISOTOPE PRODUCTION
ISOTOPES
LAMPF LINAC
LANTHANUM
LINEAR ACCELERATORS
MESON FACTORIES
METALS
MEV RANGE
MEV RANGE 100-1000
MOLYBDENUM
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEON REACTIONS
PROTON REACTIONS
RADIOISOTOPES
RARE EARTHS
REFRACTORY METALS
SPALLATION
TARGETS
TRANSITION ELEMENTS
VANADIUM
YIELDS