Shielding calculation for bremsstrahlung from .BETA.-emitters.

Monte Carlo calculation of shielding parameters for fast neutrons in newly developed heavy concretes

Introduction: The role of radiotherapy as a part of cancer management increases every year around the world. Thus, Radiation protection in the design of radiotherapy rooms are of great importance.   Materials and Methods: In present study using Monte Carlo method, MCNPX code, fourteen types of developed high density concretes with densities ranging from 2.45 ...

On the Calculation of Gluon Bremsstrahlung in Qcd

It is shown that several published calculations of the process e+e--+ Gq;i in the one-photon exchange approximation are in error. The calculations are all (at least) missing a factor of 2/x3 in the differential cross section do/dxldx2 in the rest frame of the virtual photon, where x i &Y/2 is the energy of the particle i in the final state in this frame and particle 3 is the gluon G. The reason...

Bremsstrahlung Model Calculation of High Energy Nucleon - Nucleon Scattering

A model calculation of nucleon-nucleon scattering is presented, which results in an amplitude that in the elastic high energy limit realizes the Wu-Yang idea regarding the relation between the elastic form factor of the nucleon and the differential cross section; and which is consistent with the behavior of the differential cross section for the production of nucleon resonances. The calculation...

Impact of Gas Bremsstrahlung on Synchrotron Radiation Beamline Shielding at the Advanced Photon Source+

The Advanced Photon Source (APS) currently under construction at Argonne National Laboratory will be one of the world’s brightest synchrotron radiation facilities. The storage ring, capable of storing currents up to 300 mA at 7.0 GeV and 200 mA at 7.5 GeV, will produce very intense and energetic synchrotron radiation (Ec = 24 keV for bending magnets and Ec = 37.4 keV for wigglers, where Ec is t...

Calculation of Nuclear Magnetic Shielding Constants in Two Simple Systems