CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons

I. L. Azhgirey; V. I. Belyakov-Bodin; I. I. Degtyarev; V. A. Sherstnev; S. G. Mashnik; F. X. Gallmeier; W. Lu

doi:10.1016/j.nimb.2010.09.005

CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons

I. L. Azhgirey, V. I. Belyakov-Bodin, I. I. Degtyarev, V. A. Sherstnev, S. G. Mashnik, F. X. Gallmeier, W. Lu

Neutronics Group

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3 Scopus citations

Abstract

A calorimetric-time-of-flight technique was used for real-time, high-precision measurement of neutron spectra at an angle of 175^o from the initial proton beam direction, which hits a face plane of a cylindrical lead target of 20 cm in diameter and 25 cm thick. A comparison was performed between the neutron spectra predicted by the MARS, RTS&T, MCNP6, and the MCNPX 2.6.0 transport codes and that measured for 200, 400, 600, 800, and 1000 MeV protons. Neutron spectra were measured within the energy range from 0.7 to 250 MeV almost continuously. The transport codes tested here describe with different success the measured spectra, depending on the energy of the detected neutrons and on the incident proton energy, but all the models agree reasonably well with our data.

Original language	English
Pages (from-to)	3426-3433
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	268
Issue number	22
DOIs	https://doi.org/10.1016/j.nimb.2010.09.005
State	Published - Nov 15 2010

Funding

We are grateful to G.A. Losev and A.V. Feofilov (both of the Institute for High Energy Physics) for providing the beam so reliably under the conditions demanded for this experiment. This work was partially supported by the US DOE.

Keywords

Comparison
Measurement
Neutron spectrum
Prediction by the MARS
The MCNP6 code systems
The MCNPX
The RTS&T

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Azhgirey, I. L., Belyakov-Bodin, V. I., Degtyarev, I. I., Sherstnev, V. A., Mashnik, S. G., Gallmeier, F. X., & Lu, W. (2010). CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 268(22), 3426-3433. https://doi.org/10.1016/j.nimb.2010.09.005

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title = "CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons",

abstract = "A calorimetric-time-of-flight technique was used for real-time, high-precision measurement of neutron spectra at an angle of 175o from the initial proton beam direction, which hits a face plane of a cylindrical lead target of 20 cm in diameter and 25 cm thick. A comparison was performed between the neutron spectra predicted by the MARS, RTS&T, MCNP6, and the MCNPX 2.6.0 transport codes and that measured for 200, 400, 600, 800, and 1000 MeV protons. Neutron spectra were measured within the energy range from 0.7 to 250 MeV almost continuously. The transport codes tested here describe with different success the measured spectra, depending on the energy of the detected neutrons and on the incident proton energy, but all the models agree reasonably well with our data.",

keywords = "Comparison, Measurement, Neutron spectrum, Prediction by the MARS, The MCNP6 code systems, The MCNPX, The RTS&T",

author = "Azhgirey, {I. L.} and Belyakov-Bodin, {V. I.} and Degtyarev, {I. I.} and Sherstnev, {V. A.} and Mashnik, {S. G.} and Gallmeier, {F. X.} and W. Lu",

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Azhgirey, IL, Belyakov-Bodin, VI, Degtyarev, II, Sherstnev, VA, Mashnik, SG, Gallmeier, FX & Lu, W 2010, 'CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 268, no. 22, pp. 3426-3433. https://doi.org/10.1016/j.nimb.2010.09.005

CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons. / Azhgirey, I. L.; Belyakov-Bodin, V. I.; Degtyarev, I. I. et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 268, No. 22, 15.11.2010, p. 3426-3433.

Research output: Contribution to journal › Article › peer-review

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AU - Azhgirey, I. L.

AU - Belyakov-Bodin, V. I.

AU - Degtyarev, I. I.

AU - Sherstnev, V. A.

AU - Mashnik, S. G.

AU - Gallmeier, F. X.

AU - Lu, W.

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AB - A calorimetric-time-of-flight technique was used for real-time, high-precision measurement of neutron spectra at an angle of 175o from the initial proton beam direction, which hits a face plane of a cylindrical lead target of 20 cm in diameter and 25 cm thick. A comparison was performed between the neutron spectra predicted by the MARS, RTS&T, MCNP6, and the MCNPX 2.6.0 transport codes and that measured for 200, 400, 600, 800, and 1000 MeV protons. Neutron spectra were measured within the energy range from 0.7 to 250 MeV almost continuously. The transport codes tested here describe with different success the measured spectra, depending on the energy of the detected neutrons and on the incident proton energy, but all the models agree reasonably well with our data.

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KW - Measurement

KW - Neutron spectrum

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Azhgirey IL, Belyakov-Bodin VI, Degtyarev II, Sherstnev VA, Mashnik SG, Gallmeier FX et al. CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2010 Nov 15;268(22):3426-3433. doi: 10.1016/j.nimb.2010.09.005

CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from a lead target irradiated with 200-1000 MeV protons

Abstract

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Keywords

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