Using pulse shape analysis to improve the position resolution of a resistive anode microchannel plate detector

Journal Article · Mon Sep 28 00:00:00 EDT 2015 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2015.09.056· OSTI ID:1366978

Siwal, Davinder ^[1]; Wiggins, B. B. ^[1]; deSouza, R. T. ^[1]

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1. Indiana Univ., Bloomington, IN (United States)

Digital signal processing techniques were employed to investigate the joint use of charge division and risetime analyses for the resistive anode (RA) coupled to a microchannel plate detector (MCP). In contrast to the typical approach of using the relative charge at each corner of the RA, this joint approach results in a significantly improved position resolution. A conventional charge division analysis utilizing analog signal processing provides a measured position resolution of 170 μm (FWHM). By using the correlation between risetime and position we were able to obtain a measured resolution of 92μm (FWHM), corresponding to an intrinsic resolution of 64μm (FWHM) for a single Z-stack MCP detector.

• Research Organization: Indiana Univ., Bloomington, IN (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: NA0002012
• OSTI ID: 1366978
• Alternate ID(s): OSTI ID: 1247199
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 804; ISSN 0168-9002
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Microchannel plate detector
Resistive anode
Imaging
Pulse shape analysis
Digital filtering