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Technical Note: On the proton range and nuclear interactions in compounds and mixtures.
Fatemeh S Rasouli1, S Farhad Masoudi1, David Jette2
1Department of Physics, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 15418-49611, Iran.
This study introduces a general analytical method to calculate proton range and nonelastic nuclear interactions (NNIs) probability in any compound or mixture, simplifying proton-related studies.
Area of Science:
- Nuclear Physics
- Materials Science
- Radiotherapy Physics
Background:
- Limited data exists for proton range and nonelastic nuclear interactions (NNIs) in compounds and mixtures.
- Current analytical studies are restricted to materials with available data in nuclear tables.
Purpose of the Study:
- To present general solutions for calculating proton range and NNI probability in arbitrary compounds and mixtures.
- To overcome limitations in existing proton-related analytical studies.
Main Methods:
- Utilized the Bragg-Kleeman approximation for mass stopping power to derive a proton range formula.
- Developed an additive relation for calculating the probability of NNIs.
Main Results:
- The derived formula provides a general solution for analytical evaluation of proton range in compounds and mixtures.
- The NNI probability formula is applicable to most compounds, with a modification for hydrogen-containing materials.
Conclusions:
- A mathematically simple and general analytical method for calculating proton range and NNI probability has been developed.
- The method is valid for arbitrary compounds and mixtures, including those relevant to proton radiotherapy.
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