Thermal model and optimization of a large crystal detector using a metallic magnetic calorimeter

G. B. Kim; S. Choi; Y. S. Jang; H. J. Kim; Y. H. Kim; V. V. Kobychev; H. J. Lee; J. H. Lee; J. Y. Lee; M. K. Lee; S. J. Lee; W. S. Yoon

doi:10.1007/s10909-014-1139-z

Thermal model and optimization of a large crystal detector using a metallic magnetic calorimeter

G. B. Kim, S. Choi, Y. S. Jang, H. J. Kim, Y. H. Kim, V. V. Kobychev, H. J. Lee, J. H. Lee, J. Y. Lee, M. K. Lee, S. J. Lee, W. S. Yoon

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15 Scopus citations

Abstract

We established a simple thermal model of the heat flow in a large crystal detector designed for a neutrinoless double beta decay experiment. The detector is composed of a CaMoO₄ crystal and a metallic magnetic calorimeter (MMC). The thermal connection between the absorber and the sensor consists of a gold film evaporated on the crystal surface and gold bonding wires attached to this film and the MMC sensor. The model describes athermal and thermal processes of heat flow to the gold film. A successive experiment based on optimization calculations of the area and thickness of the gold film showed a significant improvement in the size and rise-time of the measured signals.

Original language	English
Pages (from-to)	637-643
Number of pages	7
Journal	Journal of Low Temperature Physics
Volume	176
Issue number	5-6
DOIs	https://doi.org/10.1007/s10909-014-1139-z
State	Published - Sep 2014

Keywords

Cryogenic particle detection
Double beta decay
Large crystal detectors
Metallic magnetic calorimeters
Thermal model

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10.1007/s10909-014-1139-z

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title = "Thermal model and optimization of a large crystal detector using a metallic magnetic calorimeter",

abstract = "We established a simple thermal model of the heat flow in a large crystal detector designed for a neutrinoless double beta decay experiment. The detector is composed of a CaMoO4 crystal and a metallic magnetic calorimeter (MMC). The thermal connection between the absorber and the sensor consists of a gold film evaporated on the crystal surface and gold bonding wires attached to this film and the MMC sensor. The model describes athermal and thermal processes of heat flow to the gold film. A successive experiment based on optimization calculations of the area and thickness of the gold film showed a significant improvement in the size and rise-time of the measured signals.",

keywords = "Cryogenic particle detection, Double beta decay, Large crystal detectors, Metallic magnetic calorimeters, Thermal model",

author = "Kim, {G. B.} and S. Choi and Jang, {Y. S.} and Kim, {H. J.} and Kim, {Y. H.} and Kobychev, {V. V.} and Lee, {H. J.} and Lee, {J. H.} and Lee, {J. Y.} and Lee, {M. K.} and Lee, {S. J.} and Yoon, {W. S.}",

year = "2014",

month = sep,

doi = "10.1007/s10909-014-1139-z",

language = "English",

volume = "176",

pages = "637--643",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer New York",

number = "5-6",

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TY - JOUR

T1 - Thermal model and optimization of a large crystal detector using a metallic magnetic calorimeter

AU - Kim, G. B.

AU - Choi, S.

AU - Jang, Y. S.

AU - Kim, H. J.

AU - Kim, Y. H.

AU - Kobychev, V. V.

AU - Lee, H. J.

AU - Lee, J. H.

AU - Lee, J. Y.

AU - Lee, M. K.

AU - Lee, S. J.

AU - Yoon, W. S.

PY - 2014/9

Y1 - 2014/9

N2 - We established a simple thermal model of the heat flow in a large crystal detector designed for a neutrinoless double beta decay experiment. The detector is composed of a CaMoO4 crystal and a metallic magnetic calorimeter (MMC). The thermal connection between the absorber and the sensor consists of a gold film evaporated on the crystal surface and gold bonding wires attached to this film and the MMC sensor. The model describes athermal and thermal processes of heat flow to the gold film. A successive experiment based on optimization calculations of the area and thickness of the gold film showed a significant improvement in the size and rise-time of the measured signals.

AB - We established a simple thermal model of the heat flow in a large crystal detector designed for a neutrinoless double beta decay experiment. The detector is composed of a CaMoO4 crystal and a metallic magnetic calorimeter (MMC). The thermal connection between the absorber and the sensor consists of a gold film evaporated on the crystal surface and gold bonding wires attached to this film and the MMC sensor. The model describes athermal and thermal processes of heat flow to the gold film. A successive experiment based on optimization calculations of the area and thickness of the gold film showed a significant improvement in the size and rise-time of the measured signals.

KW - Cryogenic particle detection

KW - Double beta decay

KW - Large crystal detectors

KW - Metallic magnetic calorimeters

KW - Thermal model

UR - http://www.scopus.com/inward/record.url?scp=84904749941&partnerID=8YFLogxK

U2 - 10.1007/s10909-014-1139-z

DO - 10.1007/s10909-014-1139-z

M3 - Article

AN - SCOPUS:84904749941

SN - 0022-2291

VL - 176

SP - 637

EP - 643

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 5-6

ER -

Thermal model and optimization of a large crystal detector using a metallic magnetic calorimeter

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Keywords

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