Microsphere plate electron multiplier: measurements and modeling

Anton S. Tremsin; James F. Pearson; John Ernest Lees; George W. Fraser

doi:10.1117/12.218391

1 September 1995 Microsphere plate electron multiplier: measurements and modeling

Anton S. Tremsin, James F. Pearson, John Ernest Lees, George W. Fraser

Author Affiliations +

Proceedings Volume 2518, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI; (1995) https://doi.org/10.1117/12.218391
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Microsphere plates (MSPs), a new type of electron multiplier, consisting of sintered disks of glass beads, have recently become available from El-Mul Technologies Ltd. The principles of MSP operation are similar to those of microchannel plates (MCPs). This paper reports a survey of the gain, resistance, dark noise, count rate capability, charge abstraction lifetime, and image characteristics of a number of standard 33 mm diameter microsphere plates (of thickness 0.7 and 1.4 mm), operated both singly and as two-stage multipliers. We also describe a simple Monte-Carlo model of MSP operation, which enables us to estimate numerically a number of MSP characteristics, including (1) output pulse height distributions (PHDs), (2) output electron spatial and energy distributions, and (3) transit time distributions.

Citation Download Citation

Anton S. Tremsin, James F. Pearson, John Ernest Lees, and George W. Fraser "Microsphere plate electron multiplier: measurements and modeling", Proc. SPIE 2518, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI, (1 September 1995); https://doi.org/10.1117/12.218391

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