Effect of the size of experimental channels of the lead slowing-down spectrometer SVZ-100 (Institute for Nuclear Research, Moscow) on the moderation constant
Апстракт
Lead slowing-down (LSD) spectrometers have a low energy resolution (about 30%), but their luminosity is 10(3) to 10(4) times higher than that of time-of-flight (TOF) spectrometers. A high luminosity of LSD spectrometers makes it possible to use them to measure neutron cross section for samples of mass about several micrograms. These features specify a niche for the application of LSD spectrometers in measuring neutron cross sections for elements hardly available in macroscopic amounts-in particular, for actinides. A mathematical simulation of the parameters of SVZ-100 LSD spectrometer of the Institute for Nuclear Research (INR, Moscow) is performed in the present study on the basis of the MCNPX code. It is found that the moderation constant, which is the main parameter of LSD spectrometers, is highly sensitive to the size and shape of detecting volumes in calculations and, hence, to the real size of experimental channels of the LSD spectrometer. DOI: 10.1134/S1063778813030113
Извор:
Physics of Atomic Nuclei, 2013, 76, 4, 464-468
DOI: 10.1134/S1063778813030113
ISSN: 1063-7788
WoS: 000318185600008
Scopus: 2-s2.0-84876780788
Колекције
Институција/група
VinčaTY - JOUR AU - Latysheva, L. N. AU - Bergman, A. A. AU - Sobolevsky, N. M. AU - Ilić, Radovan D. PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5475 AB - Lead slowing-down (LSD) spectrometers have a low energy resolution (about 30%), but their luminosity is 10(3) to 10(4) times higher than that of time-of-flight (TOF) spectrometers. A high luminosity of LSD spectrometers makes it possible to use them to measure neutron cross section for samples of mass about several micrograms. These features specify a niche for the application of LSD spectrometers in measuring neutron cross sections for elements hardly available in macroscopic amounts-in particular, for actinides. A mathematical simulation of the parameters of SVZ-100 LSD spectrometer of the Institute for Nuclear Research (INR, Moscow) is performed in the present study on the basis of the MCNPX code. It is found that the moderation constant, which is the main parameter of LSD spectrometers, is highly sensitive to the size and shape of detecting volumes in calculations and, hence, to the real size of experimental channels of the LSD spectrometer. DOI: 10.1134/S1063778813030113 T2 - Physics of Atomic Nuclei T1 - Effect of the size of experimental channels of the lead slowing-down spectrometer SVZ-100 (Institute for Nuclear Research, Moscow) on the moderation constant VL - 76 IS - 4 SP - 464 EP - 468 DO - 10.1134/S1063778813030113 ER -
@article{ author = "Latysheva, L. N. and Bergman, A. A. and Sobolevsky, N. M. and Ilić, Radovan D.", year = "2013", abstract = "Lead slowing-down (LSD) spectrometers have a low energy resolution (about 30%), but their luminosity is 10(3) to 10(4) times higher than that of time-of-flight (TOF) spectrometers. A high luminosity of LSD spectrometers makes it possible to use them to measure neutron cross section for samples of mass about several micrograms. These features specify a niche for the application of LSD spectrometers in measuring neutron cross sections for elements hardly available in macroscopic amounts-in particular, for actinides. A mathematical simulation of the parameters of SVZ-100 LSD spectrometer of the Institute for Nuclear Research (INR, Moscow) is performed in the present study on the basis of the MCNPX code. It is found that the moderation constant, which is the main parameter of LSD spectrometers, is highly sensitive to the size and shape of detecting volumes in calculations and, hence, to the real size of experimental channels of the LSD spectrometer. DOI: 10.1134/S1063778813030113", journal = "Physics of Atomic Nuclei", title = "Effect of the size of experimental channels of the lead slowing-down spectrometer SVZ-100 (Institute for Nuclear Research, Moscow) on the moderation constant", volume = "76", number = "4", pages = "464-468", doi = "10.1134/S1063778813030113" }
Latysheva, L. N., Bergman, A. A., Sobolevsky, N. M.,& Ilić, R. D.. (2013). Effect of the size of experimental channels of the lead slowing-down spectrometer SVZ-100 (Institute for Nuclear Research, Moscow) on the moderation constant. in Physics of Atomic Nuclei, 76(4), 464-468. https://doi.org/10.1134/S1063778813030113
Latysheva LN, Bergman AA, Sobolevsky NM, Ilić RD. Effect of the size of experimental channels of the lead slowing-down spectrometer SVZ-100 (Institute for Nuclear Research, Moscow) on the moderation constant. in Physics of Atomic Nuclei. 2013;76(4):464-468. doi:10.1134/S1063778813030113 .
Latysheva, L. N., Bergman, A. A., Sobolevsky, N. M., Ilić, Radovan D., "Effect of the size of experimental channels of the lead slowing-down spectrometer SVZ-100 (Institute for Nuclear Research, Moscow) on the moderation constant" in Physics of Atomic Nuclei, 76, no. 4 (2013):464-468, https://doi.org/10.1134/S1063778813030113 . .