Fragmentation studies of high-energy ions using CR39 nuclear track detectors

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• 作者：V. Togo ; S. Balestra ; S. Cecchini ; D. Di Ferdin ; o ; M. Frutti ; G. Giacomelli ; M. Giorgini ; A. Kumar ; G. M ; rioli ; S. Manzoor ; A. Margiotta ; E. Medinaceli ; L. Patrizii ; V. Popa ; M. Spurio
• 关键词：CR39 ; Nuclear track detector ; Chemical etching ; Charge identification ; Total charge changing cross-section
• 刊名：Nuclear Instruments and Methods in Physics Research Section A ; Accelerators ; Spectrometers ; Detectors and Associated Equipment
• 出版年：2007
• 期刊代码：41_01689002
• 类别：ph
• 出版时间：21 September 2007
• 卷：580
• 期：1
• 页码：58-61
• 文件大小：318 K

摘要

We report on the measurements of the total charge changing fragmentation cross-sections in high-energy nucleus–nucleus collisions using Fe, Si and Pb incident ions. Several stacks of CR39 nuclear track detectors with different target combinations were exposed at normal incidence to high-energy accelerator beams to integrated densities of about 2000 ions/cm². The nuclear track detector foils were chemically etched, and ion tracks were measured using an automatic image analyzer system. The cross-section determination is based on the charge identification of beam ions and their fragments and on the reconstruction of their path through the stacks.