Achieving high spatial resolution using a microchannel plate detector with an economic and scalable approach

Wiggins, B. B.; deSouza, Z. O.; Vadas, J.; Alexander, A.; Hudan, S.; deSouza, R. T.

doi:10.1016/j.nima.2017.08.032

Title: Achieving high spatial resolution using a microchannel plate detector with an economic and scalable approach

Journal Article · Thu Aug 24 00:00:00 EDT 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2017.08.032· OSTI ID:1538647

Wiggins, B. B. ^[1]; deSouza, Z. O. ^[1]; Vadas, J. ^[1]; Alexander, A. ^[1]; Hudan, S. ^[1]; deSouza, R. T. ^[1]

Indiana University, Bloomington, IN (United States)

We report a second generation position-sensitive microchannel plate detector using the induced signal approach has been realized. This detector is presently capable of measuring the incident position of electrons, photons, or ions. To assess the spatial resolution, the masked detector was illuminated by electrons. The initial, measured spatial resolution of 276 μm FWHM was improved by requiring a minimum signal amplitude on the anode and by employing digital signal processing techniques. The resulting measured spatial resolution of 119 μm FWHM corresponds to an intrinsic resolution of 98 μm FWHM when the effect of the finite slit width is de-convoluted. This measurement is a substantial improvement from the last reported spatial resolution of 466 μm FWHM using the induced signal approach. To understand the factors that limit the measured resolution, the performance of the detector is simulated.

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Research Organization:: Indiana Univ., Bloomington, IN (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)

Grant/Contract Number:: NA0002012; 1342962

OSTI ID:: 1538647

Alternate ID(s):: OSTI ID: 1549899

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 872, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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