Neutron spectrum measurements at a 40-MeV proton cyclotron
A set of seven activation reactions has been selected for neutron spectral analysis in the environment of a proton-cyclotron target. This choice of reactions: 59Co(n, p) 59Fe, 59Co(n, 2n) 58Co, 59Co(n, 3n) 57Co, 197Au(n, gamma) 198Au, 197Au(n, 2n) 196Au, 197Au(n, 4n) 194Au, 27Al(n, alpha) 24Na, analyzed by means of a Ge(Li) detector, reduces to a minimum of three the number of activation detectors employed, and makes possible convenient and accurate spectral measurements to at least 40 MeV. Criteria for selection of the activation materials from a list of candidates are discussed. A detailed comparison of the unfolding programs LYRA and SAND is made, and reasons are given for our choice of SAND in our application. Spectra of neutrons emitted at 0 degrees, 45 degrees and 90 degrees from thick targets of A1, Fe, Cu, Ta and stainless steel, irradiated by 40-MeV protons at the Milan AVF cyclotron, using the analysis technique described, are given and discussed.
- OSTI ID:
- 5535584
- Journal Information:
- Health Phys.; (United States), Vol. 5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MILAN SUPERCONDUCTING CYCLOTRON
NEUTRON SPECTRA
ALUMINIUM 27
COBALT 57
COBALT 58
COBALT 59
COBALT 60
GOLD 194
GOLD 196
GOLD 197
GOLD 198
IRON 59
NEUTRONS
PROTONS
SODIUM 24
TARGETS
ACCELERATORS
ALKALI METAL ISOTOPES
ALUMINIUM ISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COBALT ISOTOPES
CYCLIC ACCELERATORS
CYCLOTRONS
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
GOLD ISOTOPES
HADRONS
HEAVY ION ACCELERATORS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IRON ISOTOPES
ISOCHRONOUS CYCLOTRONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SODIUM ISOTOPES
SPECTRA
STABLE ISOTOPES
SUPERCONDUCTING CYCLOTRONS
YEARS LIVING RADIOISOTOPES
430100* - Particle Accelerators- Design
Development
& Operation