Axial Energy Distribution in Disc-Shaped Tantalum and Aluminium Bremsstrahlung Conversion Targets

• Authors: T. Williams
• Languages of publication: EN

Abstracts

EN

The axial distribution of energy deposited in bremsstrahlung conversion targets is modelled using the Monte Carlo N-Particle (MCNP™) code. Systems comprising a disc-shaped target, segmented axially, and a point source of paraxial, monoenergetic electrons (2, 7, 10, or 14 MeV) are considered. Thick tantalum and aluminium targets and also tantalum targets of optimum thickness are modelled. Energy density, as a function of depth within the target, is found to depend on overall target thickness and to exhibit a maximum value at a particular depth. The far-field radiation polar diagram is calculated for X-rays exiting the target through its output face.

Keywords

EN

41.60.-m; 78.70.Ck; 02.70.Un

Discipline

• 78.70.Ck: X-ray scattering
• 41.60.-m: Radiation by moving charges

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 6
• Pages: 1180-1182

Dates

published

2009-06

Contributors

author

T. Williams

• AWE plc, Aldermaston, Reading, Berkshire, RG7 4PR, UK

References

• 1. W.W. Buechner, R.J. Van de Graaff, E.A. Burrill, A. Sperduto, Phys. Rev. 74, 1348 (1948)
• 2. W. Miller, J.W. Motz, C. Cialella, Phys. Rev. 96, 1348 (1954)
• 3. D.H. Rester, W.E. Dance, J.H. Derrickson, J. Appl. Phys. 41, 2682 (1970)
• 4. X-5 Monte Carlo Team, A General Monte Carlo N-Particle Transport Code, Version 5, Los Alamos National Laboratory, LA-UR-03-1987, 2003

Identifiers

DOI

10.12693/APhysPolA.115.1180