摘要
根据重离子在CR39中能量损失率公式,建立了一个鉴别空间重离子的数学模型LET=cZdRb.通过传能线密度与剩余射程之间的关系曲线,获得了该模型的系数.在实验中发现的CR39蚀刻率与离子有限传能线密度的关系VT=A·(REL)BE<350,被用来与该数学模型相关联,并得到一等式R=A0.0455Z3.18V-1T.最终,借助于标定实验得到了离子鉴别公式Z3.18=64541.08+2.53(dR/dV-1T).
A mathematical model LET = cZdRb for identifying space heavy ions is established based on energy loss rate of the heavy ions in CR-39. Coefficients of the model are acquired through correlative curves between linear energy transfer and residual range. Another relation VT = A·(REL)E less than or equal 350B between etched rate of CR-39 and restricted linear energy transfer of the ions, which is experimentally found, is used to connect the mathematical model for getting an equation R = A0.0455 Z3.18VT-1. Finally, an identification formula Z3.18 = 64541.08 + 2.53 (dR/dVT-1) is obtained by means of calibration experiments.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2005年第2期197-200,共4页
High Energy Physics and Nuclear Physics
基金
863计划(2002AA744061)
国家自然科学基金(30170534)资助~~
