A comparison of the multigroup and collocation methods for solving the low-energy neutron Boltzmann equation [0.03%]
求解低能中子Boltzmann方程的多群与配位方法比较研究
M S Clowdsley,J H Heinbockel,H Kaneko et al.
M S Clowdsley et al.
A low-energy neutron transport algorithm for use in space-radiation protection is developed. The algorithm is based upon a multiple energy group analysis of the straight ahead Boltzmann equation utilizing a mean value theorem for integrals....
Comparative Study
Canadian journal of physics. 2000 Jan;78(1):45-56. DOI: 2000
L W Townsend,J W Wilson,J W Norbury
L W Townsend
The fragmentation of 213 MeV/nucleon 40Ar ions by 12C targets is described within the context of a simple abrasion-ablation fragmentation model. The abrasion part of the theory utilizes a quantum-mechanical formalism based upon an optical m...
Total and differential cross sections for pion production via coherent isobar and giant resonance formation in heavy-ion collisions [0.03%]
相干多体共振形成的粒子产生总散射和微分散射截面在重离子碰撞中的研究
P A Deutchman,J W Norbury,L W Townsend
P A Deutchman
A quantal many-body formalism is presented that investigates pion production through the coherent formation of a nucleonic isobar in the projectile and its subsequent decay to various pion charge states along with concomitant excitation of ...
Mean excitation energies for stopping powers in various materials composed of elements hydrogen through argon [0.03%]
氢至氩元素的各种材料中止动力的平均激发能
J W Wilson,Y J Xu,E Kamaratos et al.
J W Wilson et al.
The basic model of Lindhard and Scharff, known as the local plasma model, is utilized to study the effects of the chemical and physical state of the medium on its stopping power. Unlike previous work with the local plasma model, in which in...