Proton Inelastic Mean Free Path in a Group of Organic Materials in 0.05-10 MeV Range

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2010,（11）
• 页码范围: 69-72
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/27/11/113403

摘要

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 calculatious 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 Me V 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.