JAEA-Conf 2011-002 - 日本原子力研究開発機構

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MCNPX calculation was performed based on the nuclear data libraries of LA150, TENDLE-2009 10) , and the implemental models, an intranuclear cascade model (Bertini 11) ) and an evaporation model (Dresner 12) ). The calculation results generally reproduce the measured energy spectra, considering that these models are initially intended for use in the high-energy nuclear reaction with energies above 100 MeV. Neutron flux (n·MeV -1 ·sr -1 ·C -1 ) 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 10 15 deg.x10 -1 30 deg. x10 -2 60 deg. x10 -3 90 deg. x10 -4 120 deg. x10 -5 150 deg. x10 -6 0 deg. TTY (Be, p18 MeV) Present ENDF/B-VII 10 0 3 6 9 12 15 18 0 Energy (MeV) Energy (MeV) TTY of neutrons from p-Be reaction TTY of neutrons from p-Al reaction Neutron flux (n·MeV -1 ·sr -1 ·C -1 ) 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 15 deg. x10 -1 30 deg. x10 -2 60 deg. x10 -3 90 deg. x10 -4 120 deg. x10 -5 0 deg. TTY (C, p18 MeV ) Present LA150 10 0 3 6 9 12 15 18 -1 150 deg. x10 Energy (MeV) -6 Neutron flux (n·MeV -1 ·sr -1 ·C -1 ) 10 8 10 7 10 6 10 5 10 4 10 2 10 3 120 deg. x10 -5 150 deg. x10 -6 10 1 15 deg.x10 -1 0deg. 30 deg. x10 -2 60 deg. x10 -3 90 deg. x10 -4 TTY (Al, p18 MeV ) Present LA150 10 0 3 6 9 12 15 0 0 5 10 15 Energy (MeV) TTY of neutrons from p-C reaction TTY of neutrons from p-H2 18 O reaction Neutron flux (n·MeV -1 ·sr -1 ·C -1 ) 10 9 0 deg. 10 8 15 deg. x10 -1 10 7 10 3 30 deg. x10 -2 10 4 10 5 10 6 60 deg. x10 -3 90 deg. x10 -4 120 deg. x10 -5 10 1 10 2 150 deg. x10 -6 TTY (Cu p18 MeV ) 10 0 3 6 9 12 15 18 0 Energy (MeV) JAEA-Conf 2011-002 Present LA150 Neutron Flux n·MeV -1 ·sr -1 ·C -1 Neutron flux (n·MeV -1 ·sr -1 ·C -1 ) 10 -1 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 -1 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 Present TENDL-2009 TTY (H 2 18 O, p 18 MeV) 150 deg. (x10 -6 ) TTY (Ta p18 MeV ) 0 deg. 15 deg. (x10 -1 ) 30 deg. (x10 -2 ) 60 deg. (x10 -3 ) 90 deg. (x10 -4 ) 120 deg. (x10 -5 ) Present LA150(W) 0 deg. 15 deg. x10 -1 30 deg. x10 -2 60 deg. x10 -3 90 deg. x10 -4 120 deg. x10 0 3 6 9 Energy (MeV) 12 15 18 -5 150 deg. x10 -6 TTY of neutrons from p-Cu reaction TTY of neutrons from p-Ta reaction
Figures 8, 9, 10, 11, 12 and 13 provide a comparison of the -ray spectrum at 15 degree for the various targets bombarded by 18 MeV protons with calculated results by MCNPX. The calculation result generally well reproduces the measured energy spectra except for the some peaks shown in the measured results. [10 8 ] -ray flux (n·MeV -1 ·sr -1 ·C -1 ) 3 2 1 TTY ( 9 Be, p18 MeV ) Present 15deg ENDF-BVII 0 0 3 6 Energy (MeV) 9 [10 9 ] -ray flux (n·MeV -1 ·sr -1 ·C -1 ) 2 1.5 1 0.5 TTY (Al, p18 MeV ) Present 15deg LA150 0 0 3 6 Energy (MeV) 9 TTY of -rays from p-Be reaction TTY of -rays from p-Al reaction 4 [10 9 ] -ray flux (n·MeV -1 ·sr -1 ·C -1 ) 3 2 1 TTY (C, p18 MeV ) Present 15deg LA150 0 0 3 6 Energy (MeV) 9 0 0 3 6 9 Energy (MeV) TTY of -rays from p-C reaction TTY of -rays from p-H2 18 O reaction [10 9 ] -ray flux (n·MeV -1 ·sr -1 ·C -1 ) 3 2 1 TTY (Cu, p18 MeV ) Present 15deg LA150 0 0 3 6 Energy (MeV) 9 JAEA-Conf 2011-002 [10 9 ] -ray flux (n·MeV -1 ·sr -1 ·C -1 ) [10 9 ] -ray flux (n·MeV -1 ·sr -1 ·C -1 ) 1 0.5 2 1 TTY (H 2 18 O, p18 MeV ) TTY (Ta, p18 MeV ) Present 15deg TENDL2009 MCNPX (Bertini) Present 15deg LA150 (W) 0 0 3 6 Energy (MeV) 9 TTY of -rays from p-Cu reaction TTY of -rays from p-Ta reaction
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JAEA-Conf 2011-002 Proceedings of t
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JAEA-Conf 2011-002 31. Preliminary
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6.2 Measurement of neutron-induced
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JAEA-Conf 2011-002 Table 1 Comparis
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JAEA-Conf 2011-002 (T1/2=8,900,000
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JAEA-Conf 2011-002 Though words too
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JENDL-3.3 showed better applicabili
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ENDF. Thus this cross section store
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Acknowledgement JAEA-Conf 2011-002
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In the MALIBU program, isotope conc
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some minor actinides. For major act
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JAEA-Conf 2011-002 code MVP-BURN an
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JAEA-Conf 2011-002 [3] Measurements
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3.1 Experimental Set up JAEA-Conf 2
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References JAEA-Conf 2011-002 [1] N
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JAEA-Conf 2011-002 was large. The a
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JAEA-Conf 2011-002 4. Results and D
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Acknowledgments Present study inclu
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Fig. 1 A conceptural picture of the
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4. Theoretical studies Theoretical
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JAEA-Conf 2011-002 Fig.9 Comparison
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Ion source JAEA-Conf 2011-002 LE
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JAEA-Conf 2011-002 3. Readiness
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JAEA-Conf 2011-002
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JAEA-Conf 2011-002 Figure 1. An exa
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JAEA-Conf 2011-002 Figure 6. Compar
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JAEA-Conf 2011-002 calculation of d
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JAEA-Conf 2011-002 equilibrium emis
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JAEA-Conf 2011-002 Cowley et al. [1
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4. Conclusions We have compared nuc
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of MeV region with highest cosmic-r
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JAEA-Conf 2011-002 events can be id
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JAEA-Conf 2011-002 models and its p
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JAEA-Conf 2011-002 xx
Page 82 and 83: JAEA-Conf 2011-002 1. The recent ac
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Page 88 and 89: The Institute's staff of about 280
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Page 156 and 157: Acknowledgement We are grateful to
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JAEA-Conf 2011-002 Fig. 3. The angu
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analysis of integral experiments [6
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A modified SRAC library was prepare
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JAEA-Conf 2011-002 approximately 0.
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JAEA-Conf 2011-002 constructing the
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Fig.9 Spectrum of gamma-ray followi
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JAEA-Conf 2011-002 in the same way
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JAEA-Conf 2011-002 [7]. For example
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JAEA-Conf 2011-002 For
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JAEA-Conf 2011-002 (5.0-9.0MeV), a
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components, the 0.56Wt% for hydroge
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Sensitivities of curium isotope con
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decreases of (n,g) reaction rates,
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5. Conclusion JAEA-Conf 2011-002 Wi
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2. Foundation of sensitivity analys
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JAEA-Conf 2011-002 where f g and f
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Fig.1 Sensitivity coefficient of th
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An outline of core configurations o
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0.010% 0.000% -0.010% -0.020% -0.03
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To clarify what nuclides and reacti
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Calculation was performed by the MV
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among these libraries, and the diff
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JAEA-Conf 2011-002 - 日本原子力研究開発機構

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