11 MeV low-energy magnifying pRad at CAEP

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• 作者：Yiding Li ; Guojun Yang ; Xiaoding Zhang ; ^{zhangxiao_d@163.com" class="auth_mail" title="E-mail the corresponding author} ; Tao Wei ; Xiaoguo Jiang
• 关键词：Proton radiography ; Magnifying imaging ; Spatial resolution
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2016
• 出版时间：1 April 2016
• 年：2016
• 卷：814
• 期：Complete
• 页码：104-109
• 全文大小：2766 K

文摘

To make a further improvement of resolution, the 11 MeV low-energy pRad beamline at CAEP was rebuilt into a 1:3 magnifying imaging beamline recently. The principle of low-energy pRad and the design of magnifying pRad line are described in detail. By using magnetic imaging lens of magnification three, images are spread over larger area at image plane and the effect of optical system on spatial resolution limitation is weakened. According to the radiographing results, for 10 μm thick aluminum object, spatial resolution less than 30 μm is achieved on the new magnifying pRad beamline.