Chin. Phys. Lett.  2010, Vol. 27 Issue (11): 113403    DOI: 10.1088/0256-307X/27/11/113403
ATOMIC AND MOLECULAR PHYSICS |
Proton Inelastic Mean Free Path in a Group of Organic Materials in 0.05-10MeV Range
TAN Zhen-Yu1**, XIA Yue-Yuan2, ZHAO Ming-Wen2, LIU Xiang-Dong2
1School of Electrical Engineering, Shandong University, Jinan 250061
2School of Physics, Shandong University, Jinan 250100
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TAN Zhen-Yu, XIA Yue-Yuan, ZHAO Ming-Wen et al  2010 Chin. Phys. Lett. 27 113403
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Abstract Inelastic mean free paths (MFPs) of 0.05-10 MeV protons in a group of 10 organic compounds are systematically calculated. The calculations are based on the method newly derived from the Ashley optical-data model and from the higher-order correction terms in stopping power calculations. Especially, in this method the new and empirical Bloch correction for the inelastic MFP is given. An evaluation for the optical energy loss function is incorporated into the present calculations because of the lack of available experimental optical data for the considered organic compounds expect for kapton. The proton inelastic MFPs for these 10 organic compounds in the energy range from 0.05 to 10 MeV are presented here for the first time, and the combination of these inelastic MFP data and our previous data of stopping power calculation for these bioorganic compounds may form a useful database for Monte Carlo track-structure studies of various radiation effects on these materials.
Keywords: 34.50.Bw      61.82.Pv     
Received: 17 May 2010      Published: 22 October 2010
PACS:  34.50.Bw (Energy loss and stopping power)  
  61.82.Pv (Polymers, organic compounds)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/11/113403       OR      https://cpl.iphy.ac.cn/Y2010/V27/I11/113403
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TAN Zhen-Yu
XIA Yue-Yuan
ZHAO Ming-Wen
LIU Xiang-Dong
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