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Takahashi, Tone; Koizumi, Mitsuo; Yoshimi, Yuki*; Mochimaru, Takanori*
JAEA-Technology 2025-007, 26 Pages, 2025/11
JAEA-Technology-2025-007.pdf:1.6MB
To prevent the smuggling of nuclear and radioactive materials into event venues for the purpose of terrorism, it is common practice to individually inspect people and vehicles entering and exiting using radiation detectors. However, since there remains a risk of such inspections being bypassed, it is necessary to complement them with a wide-area radiation survey to ensure that no nuclear or radioactive materials have been brought in. Radiation mapping is an effective method for efficiently surveying large areas. In this method, a gamma-ray detector equipped with GPS is used to record location data and radiation dose rates while moving. By utilizing network connectivity, measurement data from multiple detectors can be aggregated at a central command post, allowing real-time monitoring of survey progress. This system helps to prevent both redundant and missing measurements and enables the prompt detection of suspicious radiation sources. Furthermore, by incorporating spectrometers into the gamma -ray detectors, it becomes possible to identify radioactive isotopes, thereby enabling appropriate responses. To enable such wide-area radiation surveys, we developed real-time mapping software. The developed software receives measurement data transmitted from GPS-equipped gamma-ray spectrometers, processes it sequentially in real time, and plots it onto pre -downloaded map data. Additionally, by integrating the spectral data collected from regions showing abnormal radiation levels can be displayed immediately. To enhance information security, the software is designed to function within local networks without requiring internet connectivity. In this report, we introduce an overview of the developed software and provide a simplified version of the source code as an appendix. The provided code is developed using open and free operating systems, libraries, and environments, making it freely available and usable by anyone.
Yamaguchi, Isoo*; Suzuki, Shinichi; Sasaki, Yuji; Yamagishi, Isao; Matsumura, Tatsuro; Kimura, Takaumi
JAERI-Tech 2005-037, 56 Pages, 2005/07
JAERI-Tech-2005-037.pdf:2.31MB
For the development of the reprocessing of spent nuclear fuels, the solvent extraction using the mixer-settler equipment is greatly available. This method has the advantages of the treatment of the large mass of materials and continuous operations. In case of the application of the mixer-settler devise, the precise calculation using the distribution ratio of metals in order to determine the metal concentration at each stage is indispensable. This calculation is performed in the development of ARTIST process. The metal concentration in each stage of ARTIST process is calculated by the simulation using excel software equipped with counter-current equations. This method is not taken into consideration of the change of acid concentration, therefore, we developed the new method to calculate the metal concentration even after acidity change. This method can calculate not only the metal concentration at each extraction step but also at each stage of mixer-settler. Using this calculation, we evaluated the optimum condition of solvent extraction in ARTIST process.
Kikuzawa, Nobuhiro; Nagai, Ryoji
Proceedings of 2nd Annual Meeting of Particle Accelerator Society of Japan and 30th Linear Accelerator Meeting in Japan, p.430 - 432, 2005/07
no abstracts in English
Hasegawa, Yukihiro*; Yamagishi, Nobuhiro*; Takemiya, Hiroshi*; Hirayama, Toshio; Shirai, Hiroshi; Shimizu, Katsuhiro; Ozeki, Takahisa
Keisan Kogaku Koenkai Rombunshu, p.365 - 368, 2000/05
no abstracts in English
Ueno, Koichi*; Ota, Hirofumi*; Takemiya, Hiroshi*; Imamura, Toshiyuki; Koide, Hiroshi; Matsuda, Katsuyuki*; Higuchi, Kenji; Hirayama, Toshio
JAERI-Data/Code 2000-023, p.287 - 0, 2000/03
JAERI-Data-Code-2000-023.pdf:34.96MB
no abstracts in English
Ueno, Koichi*; Ota, Hirofumi*; Takemiya, Hiroshi*; Imamura, Toshiyuki; Koide, Hiroshi; Matsuda, Katsuyuki*; Higuchi, Kenji; Hirayama, Toshio
JAERI-Data/Code 2000-012, p.125 - 0, 2000/03
JAERI-Data-Code-2000-012.pdf:19.49MB
no abstracts in English
Hiramatsu, Yoichi*; Shimada, Taihei*; Miyahara, Yoshikazu*
JAERI-Tech 99-082, p.274 - 0, 1999/12
no abstracts in English
; Imamura, Toshiyuki; ; ; Takemiya, Hiroshi*; Higuchi, Kenji; ; Kasahara, Hironori*
Keisan Kogaku Koenkai Rombunshu, 3(1), p.77 - 80, 1998/05
no abstracts in English
Takemiya, Hiroshi*; Higuchi, Kenji; ; ; ; Imamura, Toshiyuki; ;
JAERI-Review 97-005, 105 Pages, 1997/03
JAERI-Review-97-005.pdf:4.67MB
no abstracts in English
Int. Symp. on Parallel Computing in Engineering and Science, 0, 10 Pages, 1997/00
no abstracts in English
10, 1995, JAERI, Tokai, Japan; Research Committee on Reactor Physics
JAERI-Conf 96-002, 160 Pages, 1996/02
no abstracts in English
Nishimura, Hideo
Dai-16-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, 0, p.184 - 191, 1995/00
no abstracts in English
; ; Araya, Fumimasa;
The 3rd JSME/ASME Joint Int. Conf. on Nuclear Engineering (ICONE),Vol. 1, 0, p.469 - 474, 1995/00
no abstracts in English
; Yokokawa, Mitsuo
JAERI-M 93-155, 130 Pages, 1993/08
no abstracts in English
31,1991,Tokai,JAERI; Research Committee on Reactor Physics
JAERI-M 92-054, 181 Pages, 1992/03
no abstracts in English
Yamano, Naoki*; ; Naito, Yoshitaka; Minami, Kazuyoshi*
JAERI-M 91-201, 171 Pages, 1991/12
no abstracts in English
Miura, Yukitoshi; Mori, Masahiro; Matsuda, Toshiaki;
JAERI-M 91-190, 43 Pages, 1991/11
no abstracts in English
; ; Masukawa, Fumihiro; Naito, Yoshitaka; Minami, Kazuyoshi*
JAERI-M 91-066, 77 Pages, 1991/04
no abstracts in English
; Kurihara, Kenichi; Kimura, Toyoaki
JAERI-M 90-114, 28 Pages, 1990/07
no abstracts in English
; Research Committee on Reactor Physics
JAERI-M 89-012, 197 Pages, 1989/02
no abstracts in English