Compact Radiation Shield with Honeycomb Structure and Metal-Mesh Filter for Molecular Detectors
This paper presents a compact radiation shielding solution featuring a fine honeycomb structure paired with a self-standing metal-mesh infrared filter. Designed for superconducting array molecule detectors, the setup effectively manages heat load exceeding 100 mW and provides long-range shielding for large-scale array detectors. Performance metrics reveal significant energy resolution improvements with detailed specifications of the detector sizes and temperature controls. This innovation enhances the efficacy of molecular detection through optimized design and materials.
Compact Radiation Shield with Honeycomb Structure and Metal-Mesh Filter for Molecular Detectors
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Presentation Transcript
J11 10mm Compact radiation shield with fine honeycomb structureand self-standing metal-mesh infrared filterfor superconducting array molecule detectorShigetomo Shiki, Masahiro Ukibe, Yutaka ShimizugawaRyutaro Maeda, and Masataka OkuboNational Institute of Advanced Industrial Science and Technology(AIST) heat load ( > 100mW ) or long radiation shield ( > 1000mm ) large-scale array detector large-scale hole on radiation shield 4K: self-standing metal-mesh infrared filter 25K: fine honeycomb collimator 5mm 10mm 10mm 12mm Cell size 0.7-1.0mm Ceramic or Aluminum Cu membrane, thickness of 0.5mm
J11 Energy Resolution Improved 3keV dE=213eV FWHM 2keV dE=169eV 1.5keV dE=160eV Ar++ 6keV Nb-STJ detector (fabricated in RIKEN) Size 50mm Temperature 0.35K m/z = 40 Ar+ m/z = 20 Ar++