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141por Huffman, P. R., Greene, G. L., Allen, R. R., Cianciolo, V., Huerto, R. R., Koehler, P., Desai, D., Mahurin, R., Yue, A., Palmquist, G. R., Snow, W. M.“…Monte Carlo simulations are being performed to design and characterize the neutron optics components for the two fundamental neutron physics beamlines at the Spallation Neutron Source. …”
Publicado 2005
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142“…We present a conceptual design for an experiment to measure the neutron lifetime (~886 s) with an accuracy of 10(−4). …”
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143“…The features of two fundamental neutron physics research stations at the NIST cold neutron research facility are described in some detail. …”
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144“…The penetration of D–D neutrons in water has been studied through measurements of first collision dose. …”
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145por Morris, C. L., Adamek, E. R., Broussard, L. J., Callahan, N. B., Clayton, S. M., Cude-Woods, C., Currie, S. A., Ding, X., Fox, W., Hickerson, K. P., Hoffbauer, M. A., Holley, A. T., Komives, A., Liu, C.-Y., Makela, M., Pattie, R. W., Ramsey, J., Salvat, D. J., Saunders, A., Seestrom, S. J., Sharapov, E. I., Sjue, S. K., Tang, Z., Vanderwerp, J., Vogelaar, B., Walstrom, P. L., Wang, Z., Wei, Wanchun, Wexler, J. W., Womack, T. L., Young, A. R., Zeck, B. A.“…In this paper, we describe a new method for measuring surviving neutrons in neutron lifetime measurements using bottled ultracold neutrons (UCN), which provides better characterization of systematic uncertainties and enables higher precision than previous measurement techniques. …”
Publicado 2017
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146por Ivankina, Tatiana I., Kichanov, Sergey E., Duliu, Octavian G., Abdo, Safa Y., Sherif, Mohamed M.“…Two analytical methods based on the neutrons high penetrability, i.e. neutron diffraction (ND) and neutron computed tomography (NCT) were used to investigate the structure of the aragonitic skeleton of an exemplar/sample of Dipastraea pallida (Dana 1846), a modern hermatypic coral. …”
Publicado 2020
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148por Lantz, M, Gorelov, D, Al-Adili, A, Jokinen, A, Kolhinen, V, Mattera, A, Rinta-Antila, S, Penttilä, H, Pomp, S, Rakoupoulos, V, Simutkin, V, Solders, A“…The ERINDA funded scientific visit has enabled the groups at U ppsala Uni- versity and University of Jyväskylä to work closer together on the design of a neutron converter that will be used as neutron source in fissi on yield studies at the IGISOL-JYFLTRAP facility at the University of Jyväsk ylä. …”
Publicado 2014
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152“…Highly enriched 6Li and 7Li Cs2LiYCl 6 (CLYC) scintillators were investigated in view of their application as thermal neutron counter (CLYC-6) and as fast neutron spectrometer (CLYC-7) in the recently developed B-RAD radiation survey metre, an instrument designed to work in regions of high magnetic fields, currently equipped with a probe for photon dose rate measurements and γ-spectrometry. …”
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155“…A method of the determination of cumulative yields of delayed neutron precursors is developed. This method is based on the iterative least-square procedure applied to delayed neutron decay curves measured after irradiation of sup 2 sup 3 sup 5 U sample by thermal neutrons. …”
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156por Abramovich, S N, Farafontov, G G, Gorelov, V P, Gorshikhin, A A, Grebennikov, A N, Ilyin, V N, Krutko, N A“…The library contains neutron data for 103 nuclei - i.e. for 38 actinide nuclei (from sup 2 sup 3 sup 2 Th to sup 2 sup 4 sup 9 Cm), 26 fission fragment nuclei and 39 nuclei in structural and technological materials. …”
Publicado 2001
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157por Yamada, Norifumi L., Hosobata, Takuya, Nemoto, Fumiya, Hori, Koichiro, Hino, Masahiro, Izumi, Jun, Suzuki, Kota, Hirayama, Masaaki, Kanno, Ryoji, Yamagata, Yutaka“…The time resolution of NR, which ranges from seconds to minutes depending on the reflection intensity, unfortunately remains low, particularly for small samples made of state-of-the-art materials even with the latest neutron reflectometers. To overcome this problem, a large-area focusing supermirror manufactured with ultra-precision machining has been employed to enhance the neutron flux at the sample, and a gain of approximately 100% in the neutron flux was achieved. …”
Publicado 2020
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158por Bandyopadhyay, Debades“…This volume focuses on topical issues in nuclear astrophysics, particularly supernovae, neutron stars, and binary neutron star mergers. An overview of those topics is presented in this editorial. …”
Publicado 2021
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159por Murakawa, Takeshi, Kurihara, Kazuo, Adachi, Motoyasu, Kusaka, Katsuhiro, Tanizawa, Katsuyuki, Okajima, Toshihide“…Most H and D atoms were identified at essentially the same positions in both the neutron-only and the X-ray/neutron joint refinements. …”
Publicado 2022
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160por NAKAMURA, Satoshi, IMAMICHI, Shoji, MASUMOTO, Kazuyoshi, ITO, Masashi, WAKITA, Akihisa, OKAMOTO, Hiroyuki, NISHIOKA, Shie, IIJIMA, Kotaro, KOBAYASHI, Kazuma, ABE, Yoshihisa, IGAKI, Hiroshi, KURITA, Kazuyoshi, NISHIO, Teiji, MASUTANI, Mitsuko, ITAMI, Jun“…This study aimed to evaluate the residual radioactivity in mice induced by neutron irradiation with an accelerator-based boron neutron capture therapy (BNCT) system using a solid Li target. …”
Publicado 2017
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