Title :
Position of ion impact determined via detection of secondary electrons
Author :
Shapira, D. ; Lewis, T.A.
Author_Institution :
Div. of Phys., Oak Ridge Nat. Lab., TN, USA
fDate :
12/1/2000 12:00:00 AM
Abstract :
The factors affecting the performance of a Position Sensitive Timing Detector (PSTD), which is based on detecting secondary electrons rejected from a foil by the passing ion in a position sensitive detection device, were investigated. We studied effects of multiple scattering in the foil, electron transport from the foil to the micro-channel plate (MCP) detector surface, and signal processing hardware. We conclude that, for detectors with foil-to-MCP distance of 5-10 cm, which use only electrostatic acceleration, electron transport limits the devices currently in use to resolution worse than 2 mm (FWHM)
Keywords :
nuclear electronics; position sensitive particle detectors; proportional counters; secondary electron emission; signal processing; Position Sensitive Timing Detector; electron transport; electrostatic acceleration; ion impact; micro-channel plate detector surface; multiple scattering; passing ion; position sensitive detection device; secondary electrons detection; signal processing hardware; Acceleration; Anodes; Electron emission; Electrostatics; Laboratories; Particle scattering; Position sensitive particle detectors; Shape control; Signal processing; Timing;
Journal_Title :
Nuclear Science, IEEE Transactions on
