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.
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References
A. Fleischmann, C. Enss, G.M. Seidel, in Cryogenic Particle Detection, ed. by C. Enss (Springer, Berlin, 2005), ISBN 3-540-20113-0
D. McCammon, in Cryogenic Particle Detection, ed. by C. Enss (Springer, Berlin, 2005), ISBN 3-540-20113-0
W. Hsieh, J. Adams, S.R. Bandler, J. Beyer, K. Denis, H. Eguchi, H. Rotzinger, G. Schneider, G.M. Seidel, T. Stevenson, D. Travers, J. Low Temp. Phys. (2008). doi:10.1007/s10909-007-9661-x
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Rotzinger, H., Adams, J., Bandler, S.R. et al. Performance of Micro-fabricated Magnetic Calorimeters Arrays for X-Ray Spectroscopy. J Low Temp Phys 151, 351–356 (2008). https://doi.org/10.1007/s10909-007-9658-5
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DOI: https://doi.org/10.1007/s10909-007-9658-5