| Autor: |
R. Hutson, R. Macek, S. C. Frankle, C. Wilkinson, D. Fitzgerald |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Proceedings of International Conference on Particle Accelerators. |
| DOI: |
10.1109/pac.1993.309274 |
| Popis: |
Monte Carlo simulations of 800-MeV proton beam spills in common shielding materials show that neutron dose equivalent rates in the forward direction can be characterized by a Moyer Model-like formula. Particle transport codes were used to determine the neutron flux at depths up to 6 meters and for production angles from 0/spl deg/ to 30/spl deg/ for primary proton-beam spills on cylindrical beam stops. The flux was then converted to dose equivalent rate as a function of depth and angle. The results for three common shielding materials were combined and the resulting fitted formula provides a quick method for estimating the dose equivalent rates and shielding effectiveness outside thick shielding at forward angles. > |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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