Fabrication and Characterization of Samples for a Material Migration Experiment on the Experimental Advanced Superconducting Tokamak (EAST).

[摘要] This report documents work done for the ITER International Fusion Energy Organization (Sponsor) under a Funds-In Agreement FI 011140916 with Sandia National Laboratories. The work consists of preparing and analyzing samples for an experiment to measure material erosion and deposition in the EAST Tokamak. Sample preparation consisted of depositing thin films of carbon and aluminum onto molybdenum tiles. Analysis consists of measuring the thickness of films before and after exposure to helium plasma in EAST. From these measurements the net erosion and deposition of material will be quantified. Film thickness measurements are made at the Sandia Ion Beam Laboratory using Rutherford backscattering spectrometry and nuclear reaction analysis, as described in this report. This report describes the film deposition and pre-exposure analysis. Results from analysis after plasma exposure will be given in a subsequent report.

[发布日期] 2015-12-01

[学科分类] 原子、分子光学和等离子物理

[关键词] THIN FILMS;HT-7U TOKAMAK;NUCLEAR REACTION ANALYSIS;HELIUM;MOLYBDENUM;THICKNESS;ALUMINIUM;CARBON;DEPOSITION;RUTHERFORD BACKSCATTERING SPECTROSCOPY;EROSION;FABRICATION;PLASMA;SAMPLE PREPARATION;DEPOSITS