Performance of micro-fabricated magnetic calorimeters arrays for X-ray spectroscopy

Hannes Rotzinger; J. Adams; S. R. Bandler; J. Beyer; H. Eguchi; E. Figueroa-Feliciano; W. Hsieh; G. M. Seidel; T. Stevenson

doi:10.1007/s10909-007-9658-5

Performance of micro-fabricated magnetic calorimeters arrays for X-ray spectroscopy

Hannes Rotzinger^*, J. Adams, S. R. Bandler, J. Beyer, H. Eguchi, E. Figueroa-Feliciano, W. Hsieh, G. M. Seidel, T. Stevenson

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We have been developing array technology for fabricating magnetic calorimeters for X-ray astronomy. The magnetization change in each pixel of the paramagnetic sensor material due to the heat input of an absorbed X-ray is sensed by a meander shaped coil. With this geometry it is possible to obtain excellent energy sensitivity, low magnetic cross-talk and large format arrays fabricated on wafers that are separate from the SQUID read-out. A magnetic bias field for each pixel is generated by the use of a persistent current that is stored.We report on the results from our prototype arrays, which are coupled to low noise DC-SQUIDs. The first test results are presented and the sensitivity is compared with calculations.

Original language	English (US)
Pages (from-to)	351-356
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	151
Issue number	1-2 PART 1
DOIs	https://doi.org/10.1007/s10909-007-9658-5
State	Published - Apr 2008

Keywords

Low temperature detector
Magnetic calorimeter
X-ray spectroscopy

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics

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10.1007/s10909-007-9658-5

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title = "Performance of micro-fabricated magnetic calorimeters arrays for X-ray spectroscopy",

abstract = "We have been developing array technology for fabricating magnetic calorimeters for X-ray astronomy. The magnetization change in each pixel of the paramagnetic sensor material due to the heat input of an absorbed X-ray is sensed by a meander shaped coil. With this geometry it is possible to obtain excellent energy sensitivity, low magnetic cross-talk and large format arrays fabricated on wafers that are separate from the SQUID read-out. A magnetic bias field for each pixel is generated by the use of a persistent current that is stored.We report on the results from our prototype arrays, which are coupled to low noise DC-SQUIDs. The first test results are presented and the sensitivity is compared with calculations.",

keywords = "Low temperature detector, Magnetic calorimeter, X-ray spectroscopy",

author = "Hannes Rotzinger and J. Adams and Bandler, {S. R.} and J. Beyer and H. Eguchi and E. Figueroa-Feliciano and W. Hsieh and Seidel, {G. M.} and T. Stevenson",

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AU - Rotzinger, Hannes

AU - Adams, J.

AU - Bandler, S. R.

AU - Beyer, J.

AU - Eguchi, H.

AU - Figueroa-Feliciano, E.

AU - Hsieh, W.

AU - Seidel, G. M.

AU - Stevenson, T.

PY - 2008/4

Y1 - 2008/4

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AB - We have been developing array technology for fabricating magnetic calorimeters for X-ray astronomy. The magnetization change in each pixel of the paramagnetic sensor material due to the heat input of an absorbed X-ray is sensed by a meander shaped coil. With this geometry it is possible to obtain excellent energy sensitivity, low magnetic cross-talk and large format arrays fabricated on wafers that are separate from the SQUID read-out. A magnetic bias field for each pixel is generated by the use of a persistent current that is stored.We report on the results from our prototype arrays, which are coupled to low noise DC-SQUIDs. The first test results are presented and the sensitivity is compared with calculations.

KW - Low temperature detector

KW - Magnetic calorimeter

KW - X-ray spectroscopy

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Performance of micro-fabricated magnetic calorimeters arrays for X-ray spectroscopy

Abstract

Keywords

ASJC Scopus subject areas

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