The TOF method for the LSDS-100 spectrometer
The first lead neutron slowing-down spectrometer (LSDS) from a pulsed source in elastic scattering on lead nuclei has been constructed in the laboratory of the atomic nucleus of the Physics Institute of the Russian Academy of Sciences LPI. Currently, there are several operating lead neutron slowing-...
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Abstract | The first lead neutron slowing-down spectrometer (LSDS) from a pulsed source in elastic scattering on lead nuclei has been constructed in the laboratory of the atomic nucleus of the Physics Institute of the Russian Academy of Sciences LPI. Currently, there are several operating lead neutron slowing-down spectrometers: LSDS-100 in Russia, RINS in United States, KULS in Japan and others. A relation between an energy of lead slowing-down moderated neutrons E (eV) and the time delay of t ({\mu}s) is described by the expression: E(t) = K/(t + t_0)^2, where values of K=170.5 (keV {\mu}s^2), t_0 = 0.3 ({\mu}s) in the case of the LSDS-100 have been measured in the previous experiment. The energy resolution of LSDS is low (30-45%) and is being determined experimentally, but the aperture ratio luminosity of the neutron flux detector is 10^2-10^4 times greater than in the case of a time of flight method technique. It allows to make experiments with small amount of substance and small cross-sections of its interaction with the slowed moderated neutrons. |
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AbstractList | The first lead neutron slowing-down spectrometer (LSDS) from a pulsed source in elastic scattering on lead nuclei has been constructed in the laboratory of the atomic nucleus of the Physics Institute of the Russian Academy of Sciences LPI. Currently, there are several operating lead neutron slowing-down spectrometers: LSDS-100 in Russia, RINS in United States, KULS in Japan and others. A relation between an energy of lead slowing-down moderated neutrons E (eV) and the time delay of t ({\mu}s) is described by the expression: E(t) = K/(t + t_0)^2, where values of K=170.5 (keV {\mu}s^2), t_0 = 0.3 ({\mu}s) in the case of the LSDS-100 have been measured in the previous experiment. The energy resolution of LSDS is low (30-45%) and is being determined experimentally, but the aperture ratio luminosity of the neutron flux detector is 10^2-10^4 times greater than in the case of a time of flight method technique. It allows to make experiments with small amount of substance and small cross-sections of its interaction with the slowed moderated neutrons. |
Author | Novikov-Borodin, A V Matushko, V L Dulin, V A Grigoriev, Yu V Ryabov, Yu V Alekseev, A A Libanova, O N Mezentseva, Zh V |
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Title | The TOF method for the LSDS-100 spectrometer |
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