HIGH-RESOLUTION, POSITION-SENSITIVE DETECTOR FOR ENERGETIC PARTICLE BEAMS

被引:1
|
作者
MARSH, EP [1 ]
STRATHMAN, MD [1 ]
REED, DA [1 ]
MORSE, DH [1 ]
PONTAU, AE [1 ]
ODOM, RW [1 ]
机构
[1] SANDIA NATL LABS, LIVERMORE, CA 94550 USA
关键词
D O I
10.1016/0168-583X(93)95529-E
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The performance and design of an imaging position sensitive, particle beam detector will be presented. The detector is minimally invasive, operates over a wide dynamic range (> 10(10)), and exhibits high spatial resolution. The secondary electrons produced when a particle beam passes through a thin foil are imaged using stigmatic ion optics onto a two-dimensional imaging detector. Due to the low scattering cross section of the 6 nm carbon foil the detector is a minimal perturbation on the primary beam. A prototype detector with an image resolution of approximately 5 mum for a field of view of 1 mm has been reported [R.W. Odom, M.D. Strathman, S.E. Buttrill, Jr., and S.M. Bauman, Nucl. Instr. and Meth. B44 (1990) 465]. A higher resolution detector for imaging small beams ( < 50 mum) with an image resolution of better than 0.5 mum has since been developed and its design is presented.
引用
收藏
页码:85 / 91
页数:7
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