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Update on X-ray Microcalorimeter Arrays Based on Thermal MKIDs (TKIDs).

Miguel Daal1, W Hawkins Clay2, Majid Mohammad2

  • 1School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel.

Journal of Low Temperature Physics
|July 29, 2024
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Summary

We are developing advanced x-ray microcalorimeter arrays (TKIDs) for high-efficiency imaging. These detectors aim for large formats and scalability, enabling new applications in astronomy and metrology.

Keywords:
MicrocalorimeterTKID, Thermal MKIDX-ray

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Area of Science:

  • Physics
  • Astronomy
  • Materials Science

Background:

  • X-ray detectors are crucial for astronomical observations and metrology.
  • Existing technologies face limitations in efficiency, format size, and scalability.
  • Microcalorimeter arrays offer a promising path for next-generation x-ray detection.

Purpose of the Study:

  • To report progress on developing x-ray microcalorimeter thermal kinetic inductance detector (TKID) arrays.
  • To achieve high quantum efficiency, high fill factor, and large formats.
  • To create scalable detector arrays for x-ray imaging spectrographs.

Main Methods:

  • Development of individual TKID pixels within arrays.
  • Design evolution driven by fabrication constraints.
  • Performance characterization of the detector arrays.

Main Results:

  • Demonstrated progress in TKID array development.
  • Addressed fabrication challenges impacting detector design.
  • Evaluated the performance of the developed x-ray detectors.

Conclusions:

  • The TKID technology shows potential for scalable, high-performance x-ray detection.
  • Design modifications due to fabrication constraints have been analyzed.
  • The developed arrays are suitable for astronomy and metrology applications.