scholarly journals NEUTRON ENERGY SPECTRA OF $sup 239$Pu--Be, $sup 238$Pu--F, AND $sup 238$Pu-- $sup 18$O($alpha$,n) SOURCES.

1967 ◽  
Author(s):  
M.E. Anderson
Keyword(s):  
Neutron Energy ◽  
Energy Spectra ◽  
N Sources

NEUTRONS AND GAMMA RAYS FROM Po210–B10(α,n) AND Po210–B11(α,n) SOURCES

1962 ◽  
Vol 40 (1) ◽  
pp. 33-48 ◽  
Author(s):  
K. W. Geiger ◽  
C. J. D. Jarvis
Keyword(s):  
Neutron Spectrum ◽  
Neutron Energy ◽  
Neutron Emission ◽  
Maximum Energy ◽  
Energy Spectra ◽  
N Sources ◽  
Proton Recoil ◽  
Two Peaks ◽  
Coincidence Measurements ◽  
Competing Reactions

The neutron energy spectra from Po–B10(α,n) and Po–B11(α,n) sources have been determined by the nuclear emulsion method and with a proton recoil spectrometer. Gamma spectra have also been measured. The Po–B10 neutron spectrum extends to an energy of 6.0 Mev and shows two peaks, at 1.0 and 3.0 Mev. The lines in the gamma spectrum are not in coincidence with neutrons but are caused by competing reactions. The Po–B11 neutron spectrum shows one peak at 2.7 Mev; the maximum energy observed is 5.0 Mev. One γ-ray line at 2.32 Mev with an intensity of 5% of the neutron emission rate is detected in the gamma–neutron coincidence measurements. The experimental neutron energy spectra have been compared with calculated spectra and are compatible with the gamma measurements, as well as with published level schemes for the residual N13 and N14 nuclei. In the case of the Po–B10 source only one-third of the neutrons are produced by the B10(α,n)N13 reaction and the remainder has to be accounted for by the B10(α,np)C12 reaction.

Simulation and analysis of time-dependent neutron energy spectra

1995 ◽  
Vol 37 (10) ◽  
pp. 1187-1196 ◽  
Author(s):  
B Wolle ◽  
U Gerstel ◽  
K Hubner ◽  
L -G Eriksson ◽  
G Sadler ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Time Dependent ◽  
Energy Spectra

Neutron-Energy Spectra for Fast Reactor Irradiation Effects

1970 ◽  
Vol 9 (4) ◽  
pp. 454-507 ◽  
Author(s):  
D. Okrent ◽  
W. B. Loewenstein ◽  
A. D. Rossin ◽  
A. B. Smith ◽  
B. A. Zolotar ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Fast Reactor ◽  
Energy Spectra ◽  
Reactor Irradiation ◽  
Irradiation Effects

Measurement of neutron energy spectra behind shielding of a 120GeV/c hadron beam facility

2006 ◽  
Vol 562 (2) ◽  
pp. 950-953 ◽  
Author(s):  
Noriaki Nakao ◽  
Shingo Taniguchi ◽  
Sayed H. Rokni ◽  
Stefan Roesler ◽  
Markus Brugger ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Energy Spectra ◽  
Hadron Beam

MCNP simulation of neutron energy spectra for a TN-32 dry shielded container

2008 ◽  
Vol 35 (7) ◽  
pp. 1296-1300 ◽  
Author(s):  
Sylena E. Smith ◽  
Xiaodong Sun ◽  
C. Alan Ford ◽  
Audeen W. Fentiman
Keyword(s):  
Neutron Energy ◽  
Energy Spectra ◽  
Mcnp Simulation

Comparison between calculation and measured data on secondary neutron energy spectra by heavy ion reactions from different thick targets

2005 ◽  
Vol 116 (1-4) ◽  
pp. 640-646 ◽  
Author(s):  
H. Iwase ◽  
B. Wiegel ◽  
G. Fehrenbacher ◽  
D. Schardt ◽  
T. Nakamura ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Heavy Ion ◽  
Measured Data ◽  
Energy Spectra ◽  
Secondary Neutron ◽  
Heavy Ion Reactions

Study of neutron energy spectra on BFS fast critical assemblies

1982 ◽  
Vol 52 (4) ◽  
pp. 229-234
Author(s):  
Yu. A. Kazanskii ◽  
A. A. Van'kov ◽  
V. V. Vozyakov ◽  
A. I. Voropaev ◽  
M. F. Lityaev ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Energy Spectra
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