Columnar cesium iodide (CsI) and micro-hole arrays for use in gas avalanche detectors

I. J. Park; J. G. Kim; H. K. Kim; W. S. Hong; S. H. Han; V. Perez-Mendez; J. Kadyk; W. Wenzel; K. S. Joo

doi:10.1109/23.914452

Columnar cesium iodide (CsI) and micro-hole arrays for use in gas avalanche detectors

I. J. Park, J. G. Kim, H. K. Kim, W. S. Hong, S. H. Han, V. Perez-Mendez, J. Kadyk, W. Wenzel, K. S. Joo

Department of Materials Science and Engineering

Lawrence Berkeley National Laboratory

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

The characteristics of a columnar CsI layer with gas multiplication was investigated by using beta rays from a ⁹⁰Sr source. This layer is intended for use as the primary electron source in any gas avalanche microdetector to avoid severe performance loss by the oblique angle of the incident charged particle. It was initially thought that the columnar structure might provide a larger detection efficiency than a planar CsI layer, because of the many surface crossings of incident particle for the columnar geometry. The columnar CsI study was performed in a thin parallel-plane structure, which has a 50-500 μm gas gap between a columnar CsI cathode and metal anode. We discuss the secondary emission and electric fields in the columnar structure, and explain why, based upon field simulation and experimental results, this approach does not succeed in this case. New ideas are presented for driftless gas avalanche detectors insensitive to the angle of incidence.

Original language	English
Pages (from-to)	1820-1824
Number of pages	5
Journal	IEEE Transactions on Nuclear Science
Volume	47
Issue number	6 I
DOIs	https://doi.org/10.1109/23.914452
State	Published - Dec 2000
Event	1999 Nuclear Science Symposium (NSS) - Seattle, WA, United States Duration: 24 Oct 1999 → 30 Oct 1999

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title = "Columnar cesium iodide (CsI) and micro-hole arrays for use in gas avalanche detectors",

abstract = "The characteristics of a columnar CsI layer with gas multiplication was investigated by using beta rays from a 90Sr source. This layer is intended for use as the primary electron source in any gas avalanche microdetector to avoid severe performance loss by the oblique angle of the incident charged particle. It was initially thought that the columnar structure might provide a larger detection efficiency than a planar CsI layer, because of the many surface crossings of incident particle for the columnar geometry. The columnar CsI study was performed in a thin parallel-plane structure, which has a 50-500 μm gas gap between a columnar CsI cathode and metal anode. We discuss the secondary emission and electric fields in the columnar structure, and explain why, based upon field simulation and experimental results, this approach does not succeed in this case. New ideas are presented for driftless gas avalanche detectors insensitive to the angle of incidence.",

author = "Park, {I. J.} and Kim, {J. G.} and Kim, {H. K.} and Hong, {W. S.} and Han, {S. H.} and V. Perez-Mendez and J. Kadyk and W. Wenzel and Joo, {K. S.}",

year = "2000",

month = dec,

doi = "10.1109/23.914452",

language = "English",

volume = "47",

pages = "1820--1824",

journal = "IEEE Transactions on Nuclear Science",

issn = "0018-9499",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6 I",

note = "1999 Nuclear Science Symposium (NSS) ; Conference date: 24-10-1999 Through 30-10-1999",

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T1 - Columnar cesium iodide (CsI) and micro-hole arrays for use in gas avalanche detectors

AU - Park, I. J.

AU - Kim, J. G.

AU - Kim, H. K.

AU - Hong, W. S.

AU - Han, S. H.

AU - Perez-Mendez, V.

AU - Kadyk, J.

AU - Wenzel, W.

AU - Joo, K. S.

PY - 2000/12

Y1 - 2000/12

N2 - The characteristics of a columnar CsI layer with gas multiplication was investigated by using beta rays from a 90Sr source. This layer is intended for use as the primary electron source in any gas avalanche microdetector to avoid severe performance loss by the oblique angle of the incident charged particle. It was initially thought that the columnar structure might provide a larger detection efficiency than a planar CsI layer, because of the many surface crossings of incident particle for the columnar geometry. The columnar CsI study was performed in a thin parallel-plane structure, which has a 50-500 μm gas gap between a columnar CsI cathode and metal anode. We discuss the secondary emission and electric fields in the columnar structure, and explain why, based upon field simulation and experimental results, this approach does not succeed in this case. New ideas are presented for driftless gas avalanche detectors insensitive to the angle of incidence.

AB - The characteristics of a columnar CsI layer with gas multiplication was investigated by using beta rays from a 90Sr source. This layer is intended for use as the primary electron source in any gas avalanche microdetector to avoid severe performance loss by the oblique angle of the incident charged particle. It was initially thought that the columnar structure might provide a larger detection efficiency than a planar CsI layer, because of the many surface crossings of incident particle for the columnar geometry. The columnar CsI study was performed in a thin parallel-plane structure, which has a 50-500 μm gas gap between a columnar CsI cathode and metal anode. We discuss the secondary emission and electric fields in the columnar structure, and explain why, based upon field simulation and experimental results, this approach does not succeed in this case. New ideas are presented for driftless gas avalanche detectors insensitive to the angle of incidence.

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U2 - 10.1109/23.914452

DO - 10.1109/23.914452

M3 - Conference article

AN - SCOPUS:0034451999

SN - 0018-9499

VL - 47

SP - 1820

EP - 1824

JO - IEEE Transactions on Nuclear Science

JF - IEEE Transactions on Nuclear Science

IS - 6 I

T2 - 1999 Nuclear Science Symposium (NSS)

Y2 - 24 October 1999 through 30 October 1999

ER -

Columnar cesium iodide (CsI) and micro-hole arrays for use in gas avalanche detectors

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