Progress in Superconductivity

The Korean Superconductivity Society (한국초전도학회)
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Development of Meander-shaped Metallic Magnetic Calorimeters

  • Yoon, W.S. (Korea Research Institute of Standard and Science) ;
  • Jang, Y.S. (Korea Research Institute of Standard and Science) ;
  • Kim, G.B. (Korea Research Institute of Standard and Science) ;
  • Lee, H.J. (Korea Research Institute of Standard and Science) ;
  • Lee, J.Y. (Korea Research Institute of Standard and Science) ;
  • Lee, M.K. (Korea Research Institute of Standard and Science) ;
  • Kim, Y.H. (Korea Research Institute of Standard and Science)
  • Received : 2012.12.17
  • Accepted : 2012.12.24
  • Published : 2012.12.31
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Abstract

We are developing meander-shaped metallic magnetic calorimeters using micro-fabrication methods. A planar Nb coil in a meander shape was fabricated on a Si substrate. The coil was designed to have a persistent current using a metal heater evaporated on a part of the coil. A paramagnetic sensor, $5{\mu}m$ thick Au:Er foil, was glued on top of the meander structure with epoxy. The magnetization and heat capacity were measured at different temperatures, and applied field currents matched well with expected values. The detector showed an energy resolution of 4 keV FWHM for the 5.5 MeV alpha particles.

Keywords

References

  1. Fleischmann, C. Enss, G.M. Seidel, "Metallic magnetic calorimeters", Topics Appl. Phys. 99, 151-216 (2005).
  2. Pies et al., "maXs:Microcalorimeter arrays for highresolution x-ray spectroscopy at SGI/FAIR", J. Low Temp. Phys 269-279, 167 (2012).
  3. P.C. Ranitzsch et al., "Development of cryogenic alpha spectrometers using metallic magnetic calorimeters", Nucl. Inst. Meth. Phys. A 299-301, 652 (2011).
  4. Y.S, Jang et al., "Development of decay energy spectroscopy using low temperature detectors" Applied radiation and isotopes, 70(9), 2255-2259 (2012). https://doi.org/10.1016/j.apradiso.2012.02.109
  5. Enss et al. "Metallic Magnetic Calorimeters for Particle Detection" J. Low Temp. Phys 137-176 121 (2000).
  6. Stefan Lausberg, "Development of a metallic magnetic calorimeter for high resolution ${\beta}$-spectroscopy", diploma thesis, Heidelberg University (2008).