【摘要】：本論文開展了一系列關于離子與納米膜相互作用方面的研究,主要包含了以下兩個部分：1.運用由歐洲核子中心基于C++開發(fā)的用于粒子輸運模擬的Geant4對負離子與絕緣體微孔膜的相互作用進行模擬,探討了其中的物理機制。我們考慮了負離子與絕緣體表面相互作用的幾個物理效應,在Geant4中編寫了新的物理過程,設置與實驗參數(shù)相一致的初始條件,得到了與實驗比較符合的模擬結果。2.高電荷離子穿越可自支撐的超薄單層碳化合物后的電荷態(tài)和能量損失的測量。我們采用的這種超薄材料由一個分子層構成,其厚度僅為1.2m,當入射離子能量為keV范圍時,相互作用時間僅為1-4 fs。我們研究了高電荷態(tài)離子穿越這種材料預前平衡態(tài)過程。我們的測量顯示了,在所選用的能量和電荷態(tài)范圍內,高電荷態(tài)離子的能量損失和電荷交換是很微小的。
[Abstract]:In this paper, a series of studies on the interaction between ions and nanofilm have been carried out, which mainly include the following two parts: 1. The interaction between negative ions and insulator microporous films is simulated by Geant4, which is developed by the European nucleon Center based on C, and the physical mechanism is discussed. We consider several physical effects of the interaction between negative ions and insulator surface, write a new physical process in Geant4, set the initial conditions consistent with the experimental parameters, and obtain the simulation results which are in good agreement with the experimental results. 2. Measurement of charge state and energy loss of high charge ions passing through self-supporting ultra-thin monolayer carbon compounds. The ultra-thin material we use is composed of a molecular layer with a thickness of only 1.2 m. When the incident ion energy is in the range of keV, the interaction time is only 1 鈮，

本文編號：2475367