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Kawabata, Kuniaki; Imabuchi, Takashi; Shirasaki, Norihito*; Suzuki, Soichiro; Ito, Rintaro; Aoki, Yuto; Omori, Takazumi
ROBOMECH Journal (Internet), 11, p.11_1 - 11_11, 2024/09
Sakurai, Hirohisa*; Kurebayashi, Yutaka*; Suzuki, Soichiro*; Horiuchi, Kazuho*; Takahashi, Yui*; Doshita, Norihiro*; Kikuchi, Satoshi*; Tokanai, Fuyuki*; Iwata, Naoyoshi*; Tajima, Yasushi*; et al.
Physical Review D, 109(10), p.102005_1 - 102005_18, 2024/05
Secular variations of galactic cosmic rays (GCRs) are inseparably associated with the galactic activities and should reflect the environments of the local galactic magnetic field, interstellar clouds, and nearby supernova remnants. The high-energy muons produced in the atmosphere by high-energy GCRs can penetrate deep underground and generate radioisotopes in the rock. As long lived radionuclides such as Be and Al have been accumulating in these rocks, concentrations of Be and Al can be used to estimate the long-term variations in high-energy muon yields, corresponding to those in the high-energy GCRs over a few million years. This study measured the production cross sections for muon induced Be and Al by irradiating positive muons with the momentum of 160 GeV/c on the synthetic silica plates and the granite core at the COMPASS experiment line in CERN SPS. In addition, it the contributions of the direct muon spallation reaction and the nuclear reactions by muon-induced particles on the production of long lived radionuclides in the rocks were clarified.
Morimoto, Kyoichi; Ono, Takahiro; Kakutani, Satomi; Yoshida, Moeka; Suzuki, Soichiro
Journal of Robotics and Mechatronics, 36(1), p.125 - 133, 2024/02
The Naraha Center for Remote Control Technology Development was established for the purpose of developing and verifying remote control equipment for promoting the decommissioning of the Fukushima Daiichi Nuclear Power Station and the external use of this center was started in 2016. The mission of this center is to contribute to the decommissioning of the Fukushima Daiichi Nuclear Power Station and for the reconstruction of Fukushima Prefecture. In this review, we describe the equipment related to the full-scale mock-up test, the component test for a remote-control device and the virtual reality system in this center. In addition, the case examples for usage of these equipment are introduced.
Yamada, Taichi; Watanabe, Kaho; Suzuki, Soichiro; Kawabata, Kuniaki
Automation Systems, 39(464), p.88 - 92, 2023/09
In Fukushima Daiichi Nuclear Power Station (FDNPS) emergency response and decommissioning, high radiation or unknown environments significantly restrict human workers' activity. Thus, a remotely controlled robot is essential to operate in such an environment instead of human workers. However, remote robot operation is not easy, and it is required to understand the robot's capability, that is, what/how the robot can do on the site. Therefore, robot evaluation method development is important for remote robot operation in disaster sites. We survey the required capabilities for a remotely controlled robot from the remote operation cases in FDNPS and develop test methods to evaluate the capabilities. This paper introduces the survey of FDNPS remote operation cases and the test method development.
Yamada, Taichi; Watanabe, Kaho; Suzuki, Soichiro; Kawabata, Kuniaki
Keisoku To Seigyo, 62(5), p.268 - 271, 2023/05
In Fukushima Daiichi Nuclear Power Station (FDNPS) emergency response and decommissioning, high radiation or unknown environments significantly restrict human workers' activity. Thus, a remotely controlled robot is essential to operate in such an environment instead of human workers. However, remote robot operation is not easy, and it is required to understand the robot's capability, that is, what/how the robot can do on the site. Therefore, robot evaluation method development is important for remote robot operation in disaster sites. We survey the required capabilities for a remotely controlled robot from the remote operation cases in FDNPS and develop test methods to evaluate the capabilities. This paper introduces the survey of FDNPS remote operation cases and the test method development.
Nishida, Satoru*; Nishino, Soichiro*; Sekine, Masahiko*; Oka, Yuki*; Harjo, S.; Kawasaki, Takuro; Suzuki, Hiroshi; Morii, Yukio*; Ishii, Yoshinobu*
Materials Transactions, 62(5), p.667 - 674, 2021/05
Times Cited Count:5 Percentile:38.97(Materials Science, Multidisciplinary)Katsumura, Soichiro; Kitabata, Takuya; Irie, Tsutomu; Suzuki, Mitsutoshi; Hashimoto, Yu; Kato, Keiji*
Transactions of the American Nuclear Society, 99(1), P. 780, 2008/11
Kaburaki, Hideo; Shimizu, Futoshi; Suzuki, Soichiro*
Pasokon De Miru Nagare No Kagaku; Suchi Ryutai Rikigaku Nyumon, p.258 - 285, 2001/07
no abstracts in English
Yamada, Taichi; Aoki, Yuto; Suzuki, Soichiro; Ito, Rintaro; Kawabata, Kuniaki
no journal, ,
We develop test methods for Unmanned Aircraft System (UAS) mobility evaluation in a narrow space. This development aims to provide an easy-to-understand evaluation for people without technical knowledge, such as UAS users, and to boost the UAS industry. To indicate UAS performance in an easy-to-understand, the test methods in this research evaluate how much the UAS can do the task based on actually performing the test task in the test field. In addition, the test methods have variable environmental factors that dominate the task performance to discuss the UAS's environmental applicability for facilitating UAS usage scenario expansion. Because accepting the test methods for UAS users and manufacturers is essential for boosting the industry, this development is proceeding while discussing with UAS users and manufacturers. This paper introduces the development of a test method for evaluating UAS mobility for ascending through an aperture.
Yamada, Taichi; Aoki, Yuto; Suzuki, Soichiro; Ito, Rintaro; Kawabata, Kuniaki
no journal, ,
This paper introduces a development of evaluation methods for flight performance of small unmanned aerial vehicle (UAV) in narrow space environments. Drone use in a narrow space is expected to provide many solutions for society, such as an inspection of plant equipment or house surveying after disaster and so on. While, in a narrow space, drone performance is restricted, for example, there are obstacles, GNSS (Global Navigation Satellite System) is denied, and it is difficult to discuss the performance of drone. Thus, the aim of the evaluation methods is to describe a drone flight performance in an easy-to-understand form, for industrial boosting. This paper explains the approach of our evaluation method and how to proceed with the development while incorporating opinions from drone users and providers. In addition, this paper describes prototypes of evaluation method for observation of obstacles, and a preliminary experiment to discuss the need of evaluation method for observation of obstacles for narrow space drone flight.
Kawabata, Kuniaki; Imabuchi, Takashi; Shirasaki, Norihito*; Ito, Rintaro; Suzuki, Soichiro
no journal, ,
no abstracts in English
Katsumura, Soichiro; Suzuki, Mitsutoshi; Hashimoto, Yu; Inoue, Naoko; Kitabata, Takuya; Irie, Tsutomu; Rochau, G.*; Cleary, V.*; Mcfadden, K.*; Mendez, C.*
no journal, ,
no abstracts in English
Kinoshita, Motoyasu; Chen, Y.*; Kaneta, Yasunori*; Geng, H. Y.*; Iwasawa, Misako*; Onuma, Toshiharu*; Ichinomiya, Takashi*; Nishiura, Yasumasa*; Itakura, Mitsuhiro; Nakamura, Jinichi; et al.
no journal, ,
no abstracts in English
Yamada, Taichi; Aoki, Yuto; Suzuki, Soichiro; Ito, Rintaro; Kawabata, Kuniaki
no journal, ,
We develop UAS test method to evaluate its mobility capability in a narrow space. This research aims to provide an easy-to-understand evaluation of UAS environmental applicability for UAS boosting industry. This paper introduces an experiment to investigate the influence of UAS flight from a confined environment. In the experiment, we evaluate UAS mobility with 2 test filed, one open and the other confined, and compare these evaluation results. Through the experiment, we found that in a confined space, UAS makes a rocking motion and is attracted to walls when flying nearby the wall, and stable flight becomes difficult as a result.
Kawabata, Kuniaki; Imabuchi, Takashi; Shirasaki, Norihito*; Suzuki, Soichiro; Ito, Rintaro
no journal, ,
Suzuki, Soichiro
no journal, ,
In the testing of remote-controlled robots at disaster sites, testing in a real environment or a close environment is considered to be an effective method, but it is difficult to reproduce the actual environment and perform stable tests. Therefore, a method represented by NIST-ASTM standard performance test method (STM), which evaluates the performance of the robot in stages by extracting elements in the actual environment and performing tests for each element, is used. The Japan Atomic Energy Agency (JAEA) has also developed a "performance test method for nuclear disaster response robots" (JAEA-TM), and equipment is being developed at the Naraha Remote Technology Development Center (NARREC). Based on the test methods and measuring instruments that can be implemented at NARREC, we will introduce NARREC as a test facility and describe its prospects.
Tomota, Yo*; Nishino, Soichiro*; Harjo, S.; Takahashi, Haruyuki*; Moriai, Atsushi; Suzuki, Tetsuya*; Adachi, Yoshitaka*
no journal, ,
no abstracts in English