Large arrays of TES X-ray microcalorimeters for dark baryon search

  • Yuichiro Ezoe
  • , Hiroshi Yoshitake
  • , Kumi Ishikawa
  • , Yoshitaka Ishisaki
  • , Hiroki Akamatsu
  • , Takaya Ohashi
  • , Noriko Y. Yamasaki
  • , Kazuhisa Mitsuda
  • , Takayuki Takano
  • , Ryutaro Maeda

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

Arrays of transition edge sensor (TES) X-ray microcalorimeters can provide a high energy resolution and a large area necessary for future dark baryon search missions such as DIOS (Diffuse Intergalactic Oxygen Surveyor). In the current design, the energy resolution of 2 eV at 0.3-1.5 keV and the geometrical area of 1 cm2 are required for DIOS. As an R&D study, we fabricated a 16×x16 Ti/Au bilayer TES array without an absorber, and achieved the energy resolution of 4.4±0.2 eV at 5.9 keV. Considering the recent experimental results on so-called excess noise, we investigated a detailed design of the TES array for DIOS. We concluded that we need a at least 20×20 pixel array consisting of 250 μm-square TESs and 500 |.im-square mushroom-type Bi/Au absorbers. We discussed technical issues to manufacture such a large format array.

Original languageEnglish
Title of host publicationLow Temperature Detectors LTD-13 - Proceedings of the 13th International Workshop
Pages60-63
Number of pages4
DOIs
StatePublished - 2009
Externally publishedYes
Event13th International Workshop on Low Temperature Detectors, LTD-13 - Stanford, CA, United States
Duration: 20 Jul 200924 Jul 2009

Publication series

NameAIP Conference Proceedings
Volume1185
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference13th International Workshop on Low Temperature Detectors, LTD-13
Country/TerritoryUnited States
CityStanford, CA
Period20/07/0924/07/09

Keywords

  • Array
  • TES
  • X-ray microcalorimeter

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