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SUMMARY:Metallic Magnetic Calorimeters for the BabyIAXO experiment
DTSTART;VALUE=DATE-TIME:20210901T171500Z
DTEND;VALUE=DATE-TIME:20210901T173000Z
DTSTAMP;VALUE=DATE-TIME:20260812T115047Z
UID:indico-contribution-15656@indico.ific.uv.es
DESCRIPTION:Speakers: Andreas Abeln (Kirchhoff-Institute for Physics\, Hei
 delberg University)\nThe next generation helioscopes BabyIAXO and IAXO wil
 l search for evidence of axions and axion-like particles (ALPs) produced i
 n the center of the Sun. In the helioscope a strong magnetic field would c
 onvert ALPs via the generic ALP-photon coupling into photons. A very promi
 sing candidate for the focal plane X-ray detectors are low temperature met
 allic magnetic calorimeters (MMCs). Combining good energy resolution and h
 igh quantum efficiency\, MMC-based detectors would allow to investigate th
 e solar axion spectrum and derive information on axion models beyond disco
 very. Furthermore\, by analyzing the resulting X-ray spectrum\, details ab
 out the interior of the Sun could be deduced.\nIn this contribution\, we p
 resent the 8x8 pixel detector array maXsIAXO which was specifically optimi
 zed for the needs of BabyIAXO. This detector features an absorber area of 
 1 cm$^2$ with a filling factor of 94.4 $\\%$ to match the focal spot size 
 of the X-ray optics. The X-ray absorbers have a thickness of 10 µm and ar
 e made of gold to ensure a high stopping power over the complete energy ra
 nge of interest up to 8 keV as well as around 14 keV where a strong line i
 s expected. The expected energy resolution is about 11 eV (FWHM). At the l
 ight of a background characterization of similar MMC arrays\, we conclude 
 discussing the advantages of using this X-ray detector system for BabyIAXO
  and IAXO.\n\nhttps://indico.ific.uv.es/event/6178/contributions/15656/
LOCATION:
URL:https://indico.ific.uv.es/event/6178/contributions/15656/
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