CROSS SECTIONS FOR THE (n,2n) REACTION IN N$sup 14$, P$sup 31$, Cu$sup 63$, AND Pr$sup 14$$sup 1$

Journal Article · Fri Apr 01 04:00:00 EST 1960 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.118.228· OSTI ID:4139680

Ferguson, J M; Thompson, W E

The (n,2n) cross sections were measured for N/sup 14/, P/sup 31/ Cu/sup 63/, and Pr/sup 141/ for neutron energies from 12.5 to 18 Mev. The annihilation radiation emitted from the product nuclides was counted with two NaI(TI) crystals in coincidence. In the energy range measured, the cross sections were found to vary, as follows: N/sup 14/, 3.03 to 11.67 mb; P/sup 31/, 0 to 74 mb; Cu/sup 63/, 186 to 836 mb; Pr/sup 141/, 1231 to 1737 mb. The results are generally in agreement with those of others. The data are compared with curves plotted from Weisskopf's theoretical expression for (n,2n) cross sections.

• Research Organization: U.S. Naval Radiological Defense Lab., San Francisco
• NSA Number: NSA-14-015302
• OSTI ID: 4139680
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 118; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANNIHILATION
COINCIDENCE METHODS
COPPER 63
CROSS SECTIONS
DIAGRAMS
ENERGY
ENERGY RANGE
FAST NEUTRONS
MEASURED VALUES
MEV RANGE
NEUTRON BEAMS
NEUTRONS
NITROGEN 14
NUCLEAR REACTIONS
NUCLEAR THEORY
PHOSPHORUS 31
PHYSICS
PRASEODYMIUM 141
SCINTILLATION COUNTERS
SODIUM IODIDES
TARGETS
THALLIUM