GAMMA-RAYS INDUCED BY THE INELASTIC SCATTERING OF 2.95-Mev NEUTRONS BY IODINE-127, LANTHANUM-139 AND BISMUTH-209 (in Russian)
Journal Article
·
· Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz.
OSTI ID:4808281
In view of the contradictory results of the spectra of gamma -rays originating from inelastic scattering of neutrons, studies were undertaken on the gamma -spectrum caused by the inelastic scattering of 2.95-Mev neutrons by I/ sup 127, La/sup 139/ and Bi/sup 209/. The neutron beam, obtained by the D(d,n)He/ sup 3/ reaction with a Zr--Mo target saturated with deuterium, was calibrated with a standard Ra--Be source. A NaI(Tl) scintillation spectrometer with circular geometry, coupled with a 63-channel amplitude analyzer was used for studying the spectra. The Bi/sup 209/ spectrum agreed with previously reported findings although the 1.29-Mev line reported by A. L. Androsenko et al. (Atomnaya Energiya 7 (3) 268 (l959)) was not observed; the peaks indicated Compton scattering. The spectrum of La/sup 139/ the presence of 0.64-, lished; the 1.24-Mev line is probably due to cascade transition from the l.43-Mev level to the ground state through the 0.l63-Mev level, while the 0.79-Mev line is probably due to the scattering of neutrons by Pb. The l/sup 127/ spectrum is quite complex: in addition to the previously reported lines, 3 gamma -transition lines with energies of 0.49, 2.13 and 2.66 Mev were noted. (TTT)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-004836
- OSTI ID:
- 4808281
- Journal Information:
- Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz., Journal Name: Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz. Vol. Vol: 25
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
BERYLLIUM
BISMUTH 209
COMPTON EFFECT
CONFIGURATION
DEUTERIUM
DEUTERON BEAMS
ENERGY LEVELS
GAMMA RADIATION
HELIUM 3
IODINE 127
LANTHANUM 139
LEAD
MOLYBDENUM
MULTI-CHANNEL ANALYZERS
NEUTRON BEAMS
NUCLEAR REACTIONS
PHYSICS
PULSE ANALYZERS
RADIATION SOURCES
RADIUM
SCATTERING
SCINTILLATION COUNTERS
SPECTRA
SPECTROMETERS
STANDARDS
TARGETS
ZIRCONIUM
BISMUTH 209
COMPTON EFFECT
CONFIGURATION
DEUTERIUM
DEUTERON BEAMS
ENERGY LEVELS
GAMMA RADIATION
HELIUM 3
IODINE 127
LANTHANUM 139
LEAD
MOLYBDENUM
MULTI-CHANNEL ANALYZERS
NEUTRON BEAMS
NUCLEAR REACTIONS
PHYSICS
PULSE ANALYZERS
RADIATION SOURCES
RADIUM
SCATTERING
SCINTILLATION COUNTERS
SPECTRA
SPECTROMETERS
STANDARDS
TARGETS
ZIRCONIUM