Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Parker, Joseph D."'
Autor:
Fujiie, Takuhiro, Abe, Ryota, Hino, Masahiro, Hishida, Mayu, Hosobata, Takuya, Kitaguchi, Masaaki, Nakabe, Rintaro, Oikawa, Kenichi, Okudaira, Takuya, Parker, Joseph D., Sakai, Kenji, Shimizu, Hirohiko M., Tsuchikawa, Yusuke, Yamagata, Yutaka
Specular reflection of neutrons on material surfaces has been demonstrated in the energy range of 0.09-0.7 eV. The results suggest that the applicable energy range of reflective neutron optics can be extended to the near-epithermal region by using ex
Externí odkaz:
http://arxiv.org/abs/2403.18313
Imaging Polarimeter for a Sub-MeV Gamma-Ray All-Sky Survey using an Electron-Tracking Compton Camera
Autor:
Komura, Shotaro, Takada, Atsushi, Mizumura, Yoshitaka, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Oda, Makoto, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tanimori, Toru, Tomono, Dai, Yoshikawa, Kei
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 bursts (GRBs). However, statistically significant polarizations have been d
Externí odkaz:
http://arxiv.org/abs/1703.07600
Autor:
Tanimori, Toru, Mizumura, Yoshitaka, Takada, Atsushi, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Komura, Shotaro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tomono, Dai, Yoshikawa, Kei
Publikováno v:
Scientific Reports 7, 41511 (2017)
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 information (intensity, or brightness in Optics) along a ray, and thus is cap
Externí odkaz:
http://arxiv.org/abs/1702.01483
Autor:
Pushin, Dmitry A., Sarenac, Dusan, Hussey, Dan, Miao, Houxun, Arif, Muhammad, Cory, David G., Huber, Michael G., Jacobson, David, LaManna, Jacob, Parker, Joseph D., Shinohara, Taken, Ueno, Wakana, Wen, Han
Publikováno v:
Phys. Rev. A 95, 043637 (2017)
We demonstrate a two phase-grating, multi-beam neutron interferometer by using a modified Ronchi setup in a far-field regime. The functionality of the interferometer is based on the universal \moire effect that was recently implemented for X-ray phas
Externí odkaz:
http://arxiv.org/abs/1606.03445
Autor:
Mizumoto, Tetsuya, Tomono, Dai, Takada, Atsushi, Tanimori, Toru, Komura, Shotaro, Kubo, Hidetoshi, Matsuoka, Yoshihiro, Mizumura, Yoshitaka, Nakamura, Kiseki, Nakamura, Shogo, Oda, Makoto, Parker, Joseph D., Sawano, Tatsuya, Bando, Naoto, Nabetani, Akira
Publikováno v:
JINST 10 (2015) C06003
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 is a hybrid detector consisting of a gaseous time projection chamber
Externí odkaz:
http://arxiv.org/abs/1508.01287
Autor:
Mizumoto, Tetsuya, Matsuoka, Yoshihiro, Mizumura, Yoshitaka, Tanimori, Toru, Kubo, Hidetoshi, Takada, Atsushi, Iwaki, Satoru, Sawano, Tatsuya, Nakamura, Kiseki, Komura, Shotaro, Nakamura, Shogo, Kishimoto, Tetsuro, Oda, Makoto, Miyamoto, Shohei, Takemura, Taito, Parker, Joseph D., Tomono, Dai, Sonoda, Shinya, Miuchi, Kentaro, Kurosawa, Shunsuke
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A 800 (2015) 40-50
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 the high sensitivity of near 1 mCrab in space. Our ETCC comprises a gas
Externí odkaz:
http://arxiv.org/abs/1508.00990
Autor:
Parker, Joseph D, Harada, Masahide, Hattori, Kaori, Iwaki, Satoru, Kabuki, Shigeto, Kishimoto, Yuji, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nishimura, Hironobu, Oku, Takayuki, Sawano, Tatsuya, Shinohara, Takenao, Suzuki, Jun-ichi, Takada, Atsushi, Tanimori, Toru, Ueno, Kazuki, Ikeno, Masahiro, Tanaka, Manobu, Uchida, Tomohisa
We have developed a prototype time-resolved neutron imaging detector employing a micro-pattern gaseous detector known as the micro-pixel chamber ({\mu}PIC) coupled with a field-programmable-gate-array-based data acquisition system. Our detector syste
Externí odkaz:
http://arxiv.org/abs/1305.4701
Autor:
Parker, Joseph D., Harada, Masahide, Hattori, Kaori, Iwaki, Satoru, Kabuki, Shigeto, Kishimoto, Yuji, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nishimura, Hironobu, Oku, Takayuki, Sawano, Tatsuya, Shinohara, Takenao, Suzuki, Jun-ichi, Takada, Atsushi, Tanimori, Toru, Ueno, Kazuki
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 spatial resolution and event reconstruction efficiency. Our prototype detect
Externí odkaz:
http://arxiv.org/abs/1305.3687