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Cryogenic infrared filter made of alumina for use at millimeter wavelength.
We propose a high-thermal-conductivity infrared filter using alumina for millimeter-wave detection systems. We constructed a prototype two-layer antireflection-coated alumina filter with a diameterExpand
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LiteBIRD: lite satellite for the study of B-mode polarization and inflation from cosmic microwave background radiation detection
LiteBIRD is a next generation satellite aiming for the detection of the Cosmic Microwave Background (CMB) B-mode polarization imprinted by the primordial gravitational waves generated in the era ofExpand
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The Simons Array: expanding POLARBEAR to three multi-chroic telescopes
The Simons Array is an expansion of the POLARBEAR cosmic microwave background (CMB) polarization experiment currently observing from the Atacama Desert in Northern Chile. This expansion will createExpand
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CRYOGENIC SYSTEM FOR J‐PARC NEUTRINO SUPERCONDUCTING MAGNET BEAM LINE—DESIGN, CONSTRUCTION AND PERFORMANCE TEST
A helium cryogenic plant has been constructed in the proton accelerator research complex, J‐PARC, to cool a string of superconducting magnets in the neutrino beam line since 2005. It consists of aExpand
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Effect of Regenerator Material Configuration on 4 K-GM Cryocooler Performance
This paper describes experimental results of a regenerator study made on a 4K-GM cryocooler. The configuration of the regenerator material is one of the important parameters for the improvement of aExpand
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Effects of neutrons on semiconductor x-ray detectors including n-type Joint European Torus and p-type GAMMA 10 tomography detectors
Characterization experiments have been carried out so as to investigate the effects of fusion-produced neutrons on the x-ray-energy responses of semiconductor detectors for x-ray tomography in theExpand
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POLARBEAR-2 optical and polarimeter designs
POLARBEAR-2 is a ground based cosmic microwave background (CMB) radiation experiment observing from Atacama, Chile. The science goals of POLARBEAR-2 are to measure the CMB polarization signalsExpand
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Development of microwave kinetic inductance detectors and their readout system for LiteBIRD
Abstract Primordial gravitational waves generated by inflation have produced an odd-parity pattern B-mode in the cosmic microwave background (CMB) polarization. LiteBIRD (Light satellite for theExpand
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CRYOGENIC PERFORMANCE OF A SUPERCONDUCTING MAGNET SYSTEM FOR THE J‐PARC NEUTRINO BEAM LINE
A neutrino experiment facility using the J‐PARC proton beam has been constructed at Tokai campus of KEK. In this project, a 150 m superconducting magnet system is installed in an arc section of theExpand
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Commissioning Results of Superconducting Magnet System for the Neutrino Beam Line
The first commissioning of a magnet system for the neutrino beam line in the J-PARC has been performed from January to March, 2009. The magnet system could be cooled down successfully in 9 days. RRRsExpand
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