133 citations · 568 across the 20 of their papers we have counts for
20 papers
Quantitative imaging of 478-keV prompt gamma rays from boron neutron capture reactions
Tetsuya Mizumoto, Shotaro Komura, Atsushi Takada +2
The accurate imaging and quantitative measurement of 478-keV prompt gamma rays are critical for advancing boron neutron capture therapy (BNCT), a promising cancer treatment. Althou…
Performance test of the MAIKo active target
T. Furuno, T. Kawabata, H. J. Ong +23
A new active target named MAIKo (Mu-PIC based Active target for Inverse Kinematics) has been developed at Kyoto University and Research Center for Nuclear Physics (RCNP),…
Imaging Polarimeter for a Sub-MeV Gamma-Ray All-Sky Survey using an Electron-Tracking Compton Camera
Shotaro Komura, Atsushi Takada, Yoshitaka Mizumura +17
X-ray and gamma-ray polarimetry is a promising tool to study the geometry and the magnetic configuration of various celestial objects, such as binary black holes or gamma-ray burst…
First On-Site True Gamma-Ray Imaging-Spectroscopy of Contamination near Fukushima Plant
Dai Tomono, Tetsuya Mizumoto, Atsushi Takada +5
We have developed an Electron Tracking Compton Camera (ETCC), which provides a well-defined Point Spread Function (PSF) by reconstructing a direction of each gamma as a point and r…
Establishment of Imaging Spectroscopy of Nuclear Gamma-Rays based on Geometrical Optics
Toru Tanimori, Yoshitaka Mizumura, Atsushi Takada +16
Since the discovery of nuclear gamma-rays, its imaging has been limited to pseudo imaging, such as Compton Camera (CC) and coded mask. Pseudo imaging does not keep physical informa…
Readout technologies for directional WIMP Dark Matter detection
J. B. R. Battat, I. G. Irastorza, A. Aleksandrov +90
The measurement of the direction of WIMP-induced nuclear recoils is a compelling but technologically challenging strategy to provide an unambiguous signature of the detection of Ga…
New readout and data-acquisition system in an electron-tracking Compton camera for MeV gamma-ray astronomy (SMILE-II)
Tetsuya Mizumoto, Yoshihiro Matsuoka, Yoshitaka Mizumura +17
For MeV gamma-ray astronomy, we have developed an electron-tracking Compton camera (ETCC) as a MeV gamma-ray telescope capable of rejecting the radiation background and attaining t…
A performance study of an electron-tracking Compton camera with a compact system for environmental gamma-ray observation
Tetsuya Mizumoto, Dai Tomono, Atsushi Takada +12
An electron-tracking Compton camera (ETCC) is a detector that can determine the arrival direction and energy of incident sub-MeV/MeV gamma-ray events on an event-by-event basis. It…
An Electron-Tracking Compton Telescope for a Survey of the Deep Universe by MeV gamma-rays
T. Tanimori, H. Kubo, A. Takada +17
Photon imaging for MeV gammas has serious difficulties due to huge backgrounds and unclearness in images, which are originated from incompleteness in determining the physical param…
Performance of a new electron-tracking Compton camera under intense radiations from a water target irradiated with a proton beam
Yoshihiro Matsuoka, T. Tanimori, H. Kubo +16
We have developed an electron-tracking Compton camera (ETCC) for use in next-generation MeV gamma ray telescopes. An ETCC consists of a gaseous time projection chamber (TPC) and pi…
Search for Hidden photons with Sumico
Yoshizumi Inoue, Tetsuya Mizumoto, Ryosuke Ohta +3
We searched for solar hidden photons in the visible photon energy range using a hidden photon detector add-on attached to Sumico. It consists of a parabolic mirror of dia. 0.5m and…
Development of a 30 cm-cube Electron-Tracking Compton Camera for the SMILE-II Experiment
Y. Mizumura, T. Tanimori, H. Kubo +16
To explore the sub-MeV/MeV gamma-ray window for astronomy, we have developed the Electron-Tracking Compton Camera (ETCC), and carried out the first performance test at room conditi…
Development of a Time-resolved Neutron Imaging Detector Based on the μPIC Micro-Pixel Chamber
Joseph D Parker, Masahide Harada, Kaori Hattori +19
We have developed a prototype time-resolved neutron imaging detector employing a micro-pattern gaseous detector known as the micro-pixel chamber (μPIC) coupled with a field-program…
Spatial resolution of a μPIC-based neutron imaging detector
Joseph D. Parker, Masahide Harada, Kaori Hattori +16
We present a detailed study of the spatial resolution of our time-resolved neutron imaging detector utilizing a new neutron position reconstruction method that improves both spatia…
Experimental search for solar hidden photons in the eV energy range using kinetic mixing with photons
T. Mizumoto, R. Ohta, T. Horie +3
We have searched for solar hidden photons in the eV energy range using a dedicated hidden photon detector. The detector consisted of a parabolic mirror with a diameter of 500mm and…
The Tokyo Axion Helioscope
R. Ohta, Y. Akimoto, Y. Inoue +6
The Tokyo Axion Helioscope experiment aims to detect axions which are produced in the solar core. The helioscope uses a strong magnetic field in order to convert axions into X-ray…
NEWAGE
Kentaro Miuchi, Kiseki Nakamura, Atsushi Takada +12
NEWAGE is a direction-sensitive dark matter search experiment with a gaseous time-projection chamber. We improved the direction-sensitive dark matter limits by our underground meas…
Prospects of Search for Solar Axions with Mass over 1 eV and Hidden Sector Photons
R. Ohta, M. Minowa, Y. Inoue +3
We present prospects of two experiments using the Tokyo Axion Helioscope. One is a search for solar axions. In the past measurements, axion mass from 0 to 0.27 eV and from 0.84 to…
Status report of the Tokyo axion helioscope experiment
Y. Inoue, M. Minowa, Y. Akimoto +3
We have searched for solar axions with a detector which consists of a 4T x 2.3m superconducting magnet, PIN-photodiode X-ray detectors, and an altazimuth mount to track the sun. Th…
Search for solar axions with mass around 1 eV using coherent conversion of axions into photons
Y. Inoue, Y. Akimoto, R. Ohta +3
A search for solar axions has been performed using an axion helioscope which is equipped with a 2.3m-long 4T superconducting magnet, a gas container to hold dispersion-matching gas…