activity
20122025
most citedThe ASTRO-H X-ray Observatory

106 citations · 405 across the 32 of their papers we have counts for

collaborators

32 papers

astro-ph.IM2025

A detailed study on spectroscopic performance of SOI pixel detector with a pinned depleted diode structure for X-ray astronomy

Masataka Yukumoto, Koji Mori, Ayaki Takeda +11

We have been developing silicon-on-insulator (SOI) pixel detectors with a pinned depleted diode (PDD) structure, named "XRPIX", for X-ray astronomy. In our previous study, we succe…

astro-ph.IM2024

Evaluation of the X-ray SOI pixel detector with the on-chip ADC

Hiroumi Matsuhashi, Kouichi Hagino, Aya Bamba +16

XRPIX is the monolithic X-ray SOI (silicon-on-insulator) pixel detector, which has a time resolution better than 10 s as well as a high detection efficiency for X-rays above…

astro-ph.IM2024★ 3 cited

Design study and spectroscopic performance of SOI pixel detector with a pinned depleted diode structure for X-ray astronomy

Masataka Yukumoto, Koji Mori, Ayaki Takeda +14

We have been developing silicon-on-insulator (SOI) pixel detectors with a pinned depleted diode (PDD) structure, named "XRPIX", for X-ray astronomy. The PDD structure is formed in…

astro-ph.IM2023★ 3 cited

Radiation-Induced Degradation Mechanism of X-ray SOI Pixel Sensors with Pinned Depleted Diode Structure

Kouichi Hagino, Masatoshi Kitajima, Takayoshi Kohmura +7

The X-ray Silicon-On-Insulator (SOI) pixel sensor named XRPIX has been developed for the future X-ray astronomical satellite FORCE. XRPIX is capable of a wide-band X-ray imaging sp…

astro-ph.IM2022★ 3 cited

Single Event Tolerance of X-ray SOI Pixel Sensors

Kouichi Hagino, Mitsuki Hayashida, Takayoshi Kohmura +19

We evaluate the single event tolerance of the X-ray silicon-on-insulator (SOI) pixel sensor named XRPIX, developed for the future X-ray astronomical satellite FORCE. In this work,…

astro-ph.IM2022★ 2 cited

X-ray Radiation Damage Effects on Double-SOI Pixel Detectors for the Future Astronomical Satellite "FORCE"

Masatoshi Kitajima, Kouichi Hagino, Takayoshi Kohmura +20

We have been developing the monolithic active pixel detector "XRPIX" onboard the future X-ray astronomical satellite "FORCE". XRPIX is composed of CMOS pixel circuits, SiO2 insulat…

astro-ph.IM2021★ 4 cited

Proton radiation hardness of X-ray SOI pixel sensors with pinned depleted diode structure

Mitsuki Hayashida, Kouichi Hagino, Takayoshi Kohmura +19

X-ray SOI pixel sensors, "XRPIX", are being developed for the next-generation X-ray astronomical satellite, "FORCE". The XRPIX are fabricated with the SOI technology, which makes i…

astro-ph.IM2020★ 8 cited

Low-Energy X-ray Performance of SOI Pixel Sensors for Astronomy, "XRPIX"

Ryota Kodama, Takeshi Go Tsuru, Takaaki Tanaka +17

We have been developing a new type of X-ray pixel sensors, "XRPIX", allowing us to perform imaging spectroscopy in the wide energy band of 1-20 keV for the future Japanese X-ray sa…

astro-ph.IM2020★ 13 cited

Experimental studies on the charge transfer inefficiency of CCD developed for the soft X-ray imaging telescope Xtend aboard the XRISM satellite

Yoshiaki Kanemaru, Jin Sato, Toshiyuki Takaki +38

We present experimental studies on the charge transfer inefficiency (CTI) of charge-coupled device (CCD) developed for the soft X-ray imaging telescope, Xtend, aboard the XRISM sat…

physics.ins-det2020★ 8 cited

Radiation Damage Effects on Double-SOI Pixel Sensors for X-ray Astronomy

Kouichi Hagino, Keigo Yarita, Kousuke Negishi +19

The X-ray SOI pixel sensor onboard the FORCE satellite will be placed in the low earth orbit and will consequently suffer from the radiation effects mainly caused by geomagneticall…

astro-ph.IM2020★ 11 cited

Optical Blocking Performance of CCDs Developed for the X-ray Astronomy Satellite XRISM

Hiroyuki Uchida, Takaaki Tanaka, Yuki Amano +43

We have been developing P-channel Charge-Coupled Devices (CCDs) for the upcoming X-ray Astronomy Satellite XRISM, planned to be launched in 2021. While the basic design of the CCD…

astro-ph.IM2020★ 1 cited

Development of the detector simulation framework for the Wideband Hybrid X-ray Imager onboard FORCE

Hiromasa Suzuki, Tsubasa Tamba, Hirokazu Odaka +8

FORCE is a Japan-US space-based astronomy mission for an X-ray imaging spectroscopy in an energy range of 1--80 keV. The Wideband Hybrid X-ray Imager (WHXI), which is the main foca…

astro-ph.IM2019★ 5 cited

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…

astro-ph.IM2019★ 5 cited

Radiation hardness of a p-channel notch CCD developed for the X-ray CCD camera onboard the XRISM satellite

Yoshiaki Kanemaru, Jin Sato, Koji Mori +30

We report the radiation hardness of a p-channel CCD developed for the X-ray CCD camera onboard the XRISM satellite. This CCD has basically the same characteristics as the one used…

astro-ph.IM2019★ 4 cited

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…

astro-ph.IM2019★ 3 cited

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…

astro-ph.IM2019★ 8 cited

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…

astro-ph.IM2018

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…

astro-ph.IM2018★ 8 cited

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…

astro-ph.IM2018★ 9 cited

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…

astro-ph.IM2018★ 21 cited

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…

astro-ph.IM2018★ 11 cited

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…

astro-ph.IM2018★ 39 cited

Soft X-ray Imager aboard Hitomi (ASTRO-H)

Takaaki Tanaka, Hiroyuki Uchida, Hiroshi Nakajima +25

The Soft X-ray Imager (SXI) is an imaging spectrometer using charge-coupled devices (CCDs) aboard the Hitomi X-ray observatory. The SXI sensor has four CCDs with an imaging area si…

astro-ph.IM2017★ 27 cited

In-orbit performance of the soft X-ray imaging system aboard Hitomi (ASTRO-H)

H. Nakajima, Y. Maeda, H. Uchida +46

We describe the in-orbit performance of the soft X-ray imaging system consisting of the Soft X-ray Telescope and the Soft X-ray Imager aboard Hitomi. Verification and calibration o…