A STUDY OF F$sup 19$(n,d)O$sup 18$ AND P$sup 31$(n,d)Si$sup 30$ REACTIONS WITH 14.1 Mev NEUTRONS

Journal Article · Sat Aug 01 04:00:00 EDT 1959 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4218735

Velyukhov, G E; Prokofiev, A N; Starodubtsev, S V

Reactions F/sup 19/(n,d)O/sup 18/ and P/sup 31/(n,d)Si/sup 30/ with 14.1 Mev neutrons were studied with neutrons from T(d n)He/sup 4/ reactions at 260 kev. The neutron f ux of 5 x 10/sup 9/ neutrons/4 ith Cr deposite was monitored with a proportional counter filled with BF/sub 3/; absolate measurements were made by recording alpha particles, with a CsI(Tl) crystal counter. The deuteron energy spectra and angular distribution at = O was correlated with the energy of recoil deuterons from a zirconium deuteride target. The magnitude -5.9 cores consistin 0.3 Mev was obtained for the Q. The angular distribution of deuterons corresponding to the transition to the 0/sup 18/ nucleus ground state was plotted according to previously published data for r/sub o/ = 5 x 10/sup -13/ cm and 1 = 0. The energy and angular distributions of deuterons from the P/sup 31/ (n,d)Si/ sup 30/ reactions were plotted and Q for the transition to the ground state is - 5.2 cores consistin 0.2 Mev. The transition to the Si/sup 30/ ground state corresponds to 1 = 0. P/sup 31/ has spin 1/2+ and Si/sup 30/ has spin 0/sup +/, consequently only s-wave pick-up shows in the reaction. The angular distribution is in good agreement with Butler's theory. The width of the /sup 2/ transition to the Si/sup 30/ ground state is 0.054. The similarity between the reaction F/sup 19/(n,d)O/sup 18/ and P (n,d)Si/sup 30/ is stressed. (R.V.J.)

• Research Organization: Inst. of Physics and Tech., Academy of Sciences, U.S.S.R.
• NSA Number: NSA-13-021477
• OSTI ID: 4218735
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 127
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALPHA DETECTION
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BORON FLUORIDES
BUTLER THEORY
CESIUM IODIDES
CRYSTALS
DEUTERIUM COMPOUNDS
DEUTERONS
DIAGRAMS
ENERGY
ENERGY LEVELS
ENERGY RANGE
FLUORINE 19
MEASURED VALUES
MEV RANGE
MOMENTUM
MONITORING
NEUTRON FLUX
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
OXYGEN 18
PARITY
PHOSPHORUS 31
PHYSICS AND MATHEMATICS
PICK-UP
PROPORTIONAL COUNTERS
Q-VALUE
RECOILS
SCINTILLATION COUNTERS
SILICON 30
SPECTRA
SPIN
TARGETS
TRANSDUCERS
ZIRCONIUM COMPOUNDS