标题： 固态气体薄膜靶通过α粒子能量损失的表征 显示英文标题

标题： Characterization of Solidified Gas Thin Film Targets via Alpha Particle Energy Loss

摘要： 报道了一种测量固态气体靶薄层厚度及其均匀性的方法。穿越薄膜的α粒子能量被测量，然后利用阻止本领将能量损失转换为厚度。均匀性通过使用源阵列在不同位置测量厚度来确定。进行了蒙特卡罗模拟以研究薄膜沉积机制。给出了TRIUMF固体氢靶系统的厚度校准结果。 显示英文摘要

摘要： A method is reported for measuring the thickness and uniformity of thin films of solidified gas targets. The energy of alpha particles traversing the film is measured and the energy loss is converted to thickness using the stopping power. The uniformity is determined by measuring the thickness at different positions with an array of sources. Monte Carlo simulations have been performed to study the film deposition mechanism. Thickness calibrations for a TRIUMF solid hydrogen target system are presented.