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CROSS SECTIONS FOR THE Mg$sup 24$(n,p)Na$sup 24$, Al$sup 27$(n,$alpha$)Na$sup 24$ Si$sup 28$(n,p)Al$sup 28$, Cr$sup 52$(n,p)V$sup 52$, AND Fe$sup 56$(n,p)Mn$sup 56$ REACTIONS

Technical Report ·
OSTI ID:4305004
; ;

The cross sections for the Mg/sup 24/(n p)Na/sup 24/ Al/sup 27/ (n, alpha ) Na/sup 24/,Si/sup 28/(n,p)Al/sup 28/,Cr/sup 52/(n,p) V/sup 52/ and Fe/sup 56/(n,p) Mn/sup 56/ reactions have been measured for neutrons produced by the H/ sup 3/(d,n)He/sup 4/reaction. The activation method was used, with the gamma rays which are emitted following beta decay being counted with a Nar(Tl) scintillation cryatal. The Mg/sup 24/(n,p)Na/sup 24/ cross section is found to be 219 plus or minus 26 mb at 13.0 Mev. The Al/sup 27/(n, alpha )Na/sup 24/ cross section varies smoothly from 139 mb at 13.0 Mev to 106 mb at 15.7 Mev. The Si/sup 28/(n,p)Al/sup 28/ cross section changes smoothly from 370 mb at 12.3 Mev to 160 mb at 18.3 Mev, with a broad peak at 13.5 Mev with the maximum value of 380 mb. The Cr/sup 52/(n,p)V/sup 52/ cross section decreases slowly from 125 mb at 12.3 Mev to 72 mb at 18.3 Mev. The Fe/sup 56/(n,p)Mn/sup 56/cross section is found to be 131 plus or minus 15 mb at 15.3 Mev. The results are generally in agreement in those cases where previous results of others exist. (auth)

Research Organization:
Naval Radiological Defense Lab., San Francisco
NSA Number:
NSA-13-003997
OSTI ID:
4305004
Report Number(s):
USNRDL-TR-269
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ACTIVATION-- ALPHA PARTICLES-- ALUMINUM 27-- BETA DECAY-- CROSS SECTIONS-- DEUTERON BEAMS-- ENERGY RANGE-- GAMMA RADIATION-- HELIUM 4-- MEASURED VALUES-- NEUTRON BEAMS-- NEUTRONS-- NUCLEAR REACTIONS-- PHOSPHORS-- SCINTILLATION COUNTERS- - SODIUM IODIDES-- SODIUM 24-- THALLIUM-- TRITIUM
ACTIVATION-- ALUMINUM 28-- BETA DECAY-- CROSS SECTIONS-- DEUTERON BEAMS-- ENERGY RANGE-- GAMMA RADIATION-- HELIUM 4-- MEASURED VALUES-- NEUTRON BEAMS-- NEUTRONS-- NUCLEAR REACTIONS-- PHOSPHORS-- PROTONS-- SCINTILLATION COUNTERS-- SILICON 28-- SODIUM IODIDES-- THALLIUM-- TRITIUM
ACTIVATION-- BETA DECAY-- CHROMIUM 52-- CROSS SECTIONS-- DEUTERON BEAMS-- ENERGY R
PHYSICS AND MATHEMATICS