Results 61 to 70 of about 24,771 (208)

Invariant Imbedding and Neutron Transport Theory III-Neutron-Neutron Collision Processes [PDF]

Indiana University Mathematics Journal, 1959
Abstract : The effects on criticality of neutron-neutron collisions involving annihilation are investigated for one-dimensional, single and multi-group cases. The analytic treatment shows that regardless of the magnitude of the cross section for collision between moving neutrons, there is no critical length (mass).
Bellman, Richard, Kalaba, Robert, Wing, G. Milton   +2 more
openaire   +2 more sources

Monte Carlo Simulation of NE213 Response to 241Am-Be Neutrons Using the PTRAC Card of the MCNPX Code and the Light Transport Code PHOTRACK [PDF]

مجله علوم و فنون هسته‌ای, 2013
The response of an NE213 scintillator to Am-Be neutrons, in which the neutron and neutron-induced charged particles transports have been undertaken, has been simulated with the use of MCNPX’ PTRAC card whilst the scintillation light transport has been ...
M Tajik, N Ghal Eh, G. R Etaati, H Afarideh   +3 more
doaj  

NECP-MCX software simulation of AB-BNCT neutron transport process

He jishu
BackgroundBoron neutron capture therapy (BNCT) is a highly promising and precise cancer treatment technique with substantial application prospects worldwide. The neutron transport process directly influences beam characteristics and accuracy of treatment
HU Zhen, ZHANG Lu, ZHOU Yifu, HE Qingming, GU Long, ZHANG Shixu   +5 more
doaj   +1 more source

Study of Monte Carlo Simulation Method for Proton Transport in NPTS Program

Yuanzineng kexue jishu, 2023
Monte Carlo simulation has become an effective method for solving different physical problems, which is especially advantageous in the particle transport problems with complex geometric models.
HAN Lihui;ZHANG Huayang;ZHONG Bin;CHENG Li;SHEN Huayun
doaj  

Verification and Analysis of the Problem-Dependent Multigroup Macroscopic Cross-Sections for Shielding Calculations

Energies, 2023
Multigroup constants are the foundation of neutron and photon transport problems, and the accuracy of multigroup cross-sections has a significant impact on shielding calculation.
Xu Zhao, Shengchun Shi, Wen Xu, Jiaju Hu, Jun Wu, Bin Zhang   +5 more
doaj   +1 more source

Initial condition in the theory of neutron transport [PDF]

, 1968
summary:The transport equation for the neutron density in an infinite absorbing and non-multiplying medium is discussed provided the initial distribution is known.
Ivan Vidav, Kyncl, Jan
core   +1 more source

Cosmic-ray neutron transport at a forest field site: the sensitivity to various environmental conditions with focus on biomass and canopy interception [PDF]

Hydrology and Earth System Sciences, 2017
Cosmic-ray neutron intensity is inversely correlated to all hydrogen present in the upper decimeters of the subsurface and the first few hectometers of the atmosphere above the ground surface.
M. Andreasen, K. H. Jensen, D. Desilets, M. Zreda, H. R. Bogena, M. C. Looms   +5 more
doaj   +1 more source

Calculation of eigenvalues for neutron transport equation using Henyey-Greenstein phase function in slab geometry

EPJ Web of Conferences, 2016
Eigenvalues are obtained for one-dimensional steady-state neutron transport equation in slab geometry using Henyey-Greenstein (HG) phase function. Firstly, HG phase function is inserted into neutron transport equation then eigenvalues are calculated for ...
Bülbül Ahmet
doaj   +1 more source

Multi-species Neutron Transport Equation [PDF]

Journal of Statistical Physics, 2019
The Neutron Transport Equation (NTE) describes the flux of neutrons through inhomogeneous fissile medium. Whilst well treated in the nuclear physics literature (cf. [9, 27]), the NTE has had a somewhat scattered treatment in mathematical literature with a variety of different approaches (cf. [8, 25]).
Alexander M. G. Cox, Simon C. Harris, Emma L. Horton, Andreas E. Kyprianou   +3 more
openaire   +3 more sources

Measurements of neutrons produced by high-energy muons at the Boulby Underground Laboratory [PDF]

, 2008
We present the first measurements of the muon-induced neutron flux at the Boulby Underground Laboratory. The experiment was carried out with an 0.73 tonne liquid scintillator that also served as an anticoincidence system for the ZEPLIN-II direct dark ...
Daw, E, Korolkova E, Carson, MJ, Pinto da Cunha J, Murphy, A., Paling, SM, Bungau C, McMillan, J. E., Preece, R., Blockley, J, McMillan, JE, Kudryavtsev V, Araujo H, Araújo, H., Majewski, P, Carson M, Majewski P, Walker, R., Daw, E., Preece, R. M., Carson, Michael, Murphy, A. St. J., Robinson, M., Liubarsky, I., Ghag C, Spooner, N., Blockley, J., White J, Kudryavtsev, V. A., Smith, N., McMillan JE, Walker RJ, Carson, M. J., Smith, N. J. T., Wang, H, Edwards B, Korolkova, E, Lightfoot PK, Araujo, H, White, J, Smith NJT, Bungau, C, McMillan, J., Ghag, C., Araújo, H. M., Chagani, H., Majewski, P., Paling, S., Carson, M, Spooner NJC, Lightfoot, P. K., Araujo, HM, Preece, RM, Pinto da Cunha, J., Kudryavtsev, V, Liubarsky I, Lindote, A, Wang H, Smith, P., Mavrokoridis, K., Walker, R. J., Liubarsky, I, Chagani H, Lüscher, R., Paling, S. M., Kudryavtsev, V., Edwards, B, Smith PF, Chagani, H, Lindote A, Sumner TJ, Paling SM, Kudryavtsev, VA, Spooner, NJC, da Cunha, JP, Robinson, M, Edwards, B., Luescher, R, Smith, NJT, Lüscher R, Lightfoot, P., Korolkova, E. V., Mavrokoridis, K, Sumner, T., Wang, H., Murphy AStJ, Blockley J, Smith, P. F., Spooner, N. J. C., Preece RM, Korolkova, EV, Ghag, C, Mavrokoridis K, Walker, RJ, Cunha, J. Pinto da, White, J., Sumner, TJ, Sumner, T. J., Robinson M, Lindote, A., Korolkova, E., Lightfoot, PX, Smith, PF, Daw E, Murphy, ASJ, Bungau, Cristian, Bungau, C.   +106 more
core   +1 more source