32 citations · 252 across the 23 of their papers we have counts for
23 papers
Automatic Detection of Occulted Hard X-ray Flares Using Deep-Learning Methods
Shin-nosuke Ishikawa, Hideaki Matsumura, Yasunobu Uchiyama +1
We present a concept for a machine-learning classification of hard X-ray (HXR) emissions from solar flares observed by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHE…
Sub-pixel Response of Double-SOI Pixel Sensors for X-ray Astronomy
K. Hagino, K. Negishi, K. Oono +16
We have been developing the X-ray silicon-on-insulator (SOI) pixel sensor called XRPIX for future astrophysical satellites. XRPIX is a monolithic active pixel sensor consisting of…
Measurement of Charge Cloud Size in X-ray SOI Pixel Sensors
Kouichi Hagino, Kenji Oono, Kousuke Negishi +20
We report on a measurement of the size of charge clouds produced by X-ray photons in X-ray SOI (Silicon-On-Insulator) pixel sensor named XRPIX. We carry out a beam scanning experim…
Subpixel Response of SOI Pixel Sensor for X-ray Astronomy with Pinned Depleted Diode: First Result from Mesh Experiment
Kazuho Kayama, Takeshi G. Tsuru, Takaaki Tanaka +31
We have been developing a monolithic active pixel sensor, ``XRPIX``, for the Japan led future X-ray astronomy mission ``FORCE`` observing the X-ray sky in the energy band of 1-80 k…
Evaluation of Kyoto's Event-Driven X-ray Astronomical SOI Pixel Sensor with a Large Imaging Area
Hideki Hayashi, Takeshi Go Tsuru, Takaaki Tanaka +23
We have been developing monolithic active pixel sensors, named ``XRPIX'', based on the silicon-on-insulator (SOI) pixel technology for future X-ray astronomy satellites. XRPIX has…
Ionization age of iron ejecta in the Galactic Type Ia supernova remnant G306.3-0.9
Makoto Sawada, Katsuhiro Tachibana, Hiroyuki Uchida +5
We present a 190 ks observation of the Galactic supernova remnant (SNR) G306.3-0.9 with Suzaku. To study ejecta properties of this possible Type Ia SNR, the absolute energy scale a…
Performance of SOI Pixel Sensors Developed for X-ray Astronomy
Takaaki Tanaka, Takeshi Go Tsuru, Hiroyuki Uchida +24
We have been developing monolithic active pixel sensors for X-rays based on the silicon-on-insulator technology. Our device consists of a low-resistivity Si layer for readout CMOS…
X-ray response evaluation in subpixel level for X-ray SOI pixel detectors
Kousuke Negishi, Takayoshi Kohmura, Kouichi Hagino +21
We have been developing event-driven SOI Pixel Detectors, named `XRPIX' (X-Ray soiPIXel) based on the silicon-on-insulator (SOI) pixel technology, for the future X-ray astronomical…
Proton Radiation Damage Experiment for X-Ray SOI Pixel Detectors
Keigo Yarita, Takayoshi Kohmura, Kouichi Hagino +23
In low earth orbit, there are many cosmic rays composed primarily of high energy protons. These cosmic rays cause surface and bulk radiation effects, resulting in degradation of de…
Suzaku X-ray observations of the mixed-morphology supernova remnant CTB 1
Miho Katsuragawa, Shinya Nakashima, Hideaki Matsumura +6
We present an X-ray study of the mixed-morphology supernova remnant CTB 1 (G116.9+0.2) observed with Suzaku. The 0.6-2.0 keV spectra in the northeast breakout region of CTB 1 are w…
Performance of the Silicon-On-Insulator Pixel Sensor for X-ray Astronomy, XRPIX6E, Equipped with Pinned Depleted Diode Structure
Sodai Harada, Takeshi Go Tsuru, Takaaki Tanaka +23
We have been developing event driven X-ray Silicon-On-Insulator (SOI) pixel sensors, called "XRPIX", for the next generation of X-ray astronomy satellites. XRPIX is a monolithic ac…
Kyoto's Event-Driven X-ray Astronomy SOI pixel sensor for the FORCE mission
Takeshi G. Tsuru, Hideki Hayashi, Katsuhiro Tachibana +23
We have been developing monolithic active pixel sensors, X-ray Astronomy SOI pixel sensors, XRPIXs, based on a Silicon-On-Insulator (SOI) CMOS technology as soft X-ray sensors for…
Spatially resolved spectroscopy of nonthermal X-rays in RX J1713.7-3946 with Chandra
Tomoyuki Okuno, Takaaki Tanaka, Hiroyuki Uchida +2
The young shell-type supernova remnant (SNR) RX J1713.7-3946 has been studied as a suitable target to test the SNR paradigm for the origin of Galactic cosmic rays. We present a spa…
The Origin of Recombining Plasma and the Detection of the Fe-K Line in the Supernova Remnant W28
Hiromichi Okon, Hiroyuki Uchida, Takaaki Tanaka +2
Overionized recombining plasmas (RPs) have been discovered from a dozen of mixed- morphology (MM) supernova remnants (SNRs). However their formation process is still under debate.…
Toward the Understanding of the Physical Origin of Recombining Plasma in the Supernova Remnant IC 443
Hideaki Matsumura, Takaaki Tanaka, Hiroyuki Uchida +2
We perform a spatially resolved spectroscopic analysis of X-ray emission from the supernova remnant (SNR) IC 443 with Suzaku. All the spectra are well reproduced by a model consist…
Localized Recombining Plasma in G166.0+4.3: A Supernova Remnant with an Unusual Morphology
Hideaki Matsumura, Hiroyuki Uchida, Takaaki Tanaka +4
We observed the Galactic mixed-morphology supernova remnant G166.0+4.3 with Suzaku. The X-ray spectrum in the western part of the remnant is well represented by a one-component ion…
X-ray Performance of Back-Side Illuminated Type of Kyoto's X-ray Astronomical SOI Pixel Sensor, XRPIX
Makoto Itou, Takeshi Go Tsuru, Takaaki Tanaka +11
We have been developing X-ray SOI pixel Sensors, called "XRPIX", for future X-ray astronomy satellites that enable us to observe in the wide energy band of 0.5-40 keV. Since XRPIXs…
Improvement of Spectroscopic Performance using a Charge-sensitive Amplifier Circuit for an X-Ray Astronomical SOI Pixel Detector
Ayaki Takeda, Takeshi Go Tsuru, Takaaki Tanaka +13
We have been developing monolithic active pixel sensors series, named "XRPIX," based on the silicon-on-insulator (SOI) pixel technology, for future X-ray astronomical satellites. T…
Improving Charge-Collection Efficiency of Kyoto's SOI Pixel Sensors
Hideaki Matsumura, Takeshi Go Tsuru, Takaaki Tanaka +8
We have been developing X-ray SOIPIXs for next-generation satellites for X-ray astronomy. Their high time resolution (s) and event-trigger-output function enable us to re…
Investigation of the Kyoto's X-ray Astronomical SOIPIXs with Double-SOI Wafer for Reduction of Cross-talks
Shunichi Ohmura, Takeshi Go Tsuru, Takaaki Tanaka +10
We have been developing X-ray SOIPIXs, "XRPIX", for future X-ray astronomy satellites. XRPIX is equipped with a function of "event-driven readout", which allows us to readout signa…
Light Dark Matter Search with SOIPIX
Naoya Oka, Kentaro Miuchi, Takeshi G. Tsuru +2
We propose a light dark matter search experiment using an SOI pixel detector (SOIPIX). The event-driven SOIPIX can be a powerful tool for detecting light WIMPs because of its low e…
Study of the basic performance of the XRPIX for the future astronomical X-ray satellite
Koki Tamasawa, Takayoshi Kohmura, Takahiro Konno +7
We have developed CMOS imaging sensor (XRPIX) using SOI (Silicon-On-Insulator) technology for the X-ray astronomical use. XRPIX(X-Ray soiPIXel) has advantage of a high time resolut…
Development and Performance of Kyoto's X-ray Astronomical SOI pixel (SOIPIX) sensor
Takeshi G. Tsuru, Hideaki Matsumura, Ayaki Takeda +18
We have been developing monolithic active pixel sensors, known as Kyoto's X-ray SOIPIXs, based on the CMOS SOI (silicon-on-insulator) technology for next-generation X-ray astronomy…