Preparation and characterisation of thin film nuclear targets for neutron physical measurements
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- 作者：D. Sapundjiev ; A. Dean ; U. Jacobsson ; K. Luyckx ; A. Moens ; G. Sibbens ; R. Eykens ; Y. Aregbe
- 关键词：Lithium fluoride ; Boron films ; Tristearin ; Thin film nuclear targets ; Thin film characterisation ; Areal density
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2012
- 出版时间：11 September, 2012
- 年：2012
- 卷：686
- 期：Complete
- 页码：75-81
- 全文大小：509 K
文摘
In the target preparation laboratory of the Institute for Reference Materials and Measurements, lithium fluoride, boron, and tristearin thin films are produced by physical vapour deposition for neutron spectroscopy experiments and for neutron cross-section measurements. In all of these applications the accuracy of the obtained measurements greatly depends on the properties of the deposited films and the characterisation of the areal density. In this work we describe the production of various nuclear targets. The characterisation methods depend on the nature of the particular film/substrate system. Different characterisation techniques and the uncertainties in the determined areal densities necessary for neutron physical calculations are presented and compared.