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JAEA Reports

Nuclear Facilities Management Section Mutsu Office, Aomori Research and Development Center operations report; FY 2012&2013

Tajima, Yoshihiro; Kuwabara, Jun; Oyokawa, Atsushi; Kabuto, Shoji; Araya, Naoyuki; Kikuchi, Kaoru; Miyamoto, Shingo; Nemoto, Hideyuki; Oe, Osamu

JAEA-Review 2016-003, 56 Pages, 2016/05

JAEA-Review-2016-003.pdf:7.16MB

Nuclear Facilities Management Section implements the operation, maintenance and decommissioning of the first nuclear ship "MUTSU" and the operation and maintenance of the liquid waste facility and the solid waste facility where a small amount of nuclear fuel is used. This is the report on the operations of the Nuclear Facilities Management Section for FY 2012 and FY 2013.

Journal Articles

Status of JAEA-AMS-MUTSU at 2010-2011

Kabuto, Shoji; Kinoshita, Naoki; Tanaka, Takayuki; Kuwabara, Jun; Seki, Takeo

Dai-24-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.9 - 12, 2011/07

A Tandetron Accelerator Mass Spectrometer (AMS) manufactured by High Voltage Engineering Europa in Netherlands had been set up at the Mutsu office of Aomori Research and Development Center, Japan Atomic Energy Agency (JAEA) in 1997. This AMS features 3 MV Tandetron accelerator and two independence beamlines for $$^{14}$$C and $$^{129}$$I measurement. In this report, we describe the summary of the current status at 2010-2011.

Journal Articles

Current status of $$^{14}$$C measurement at JAEA-AMS-MUTSU

Tanaka, Takayuki; Kabuto, Shoji; Kinoshita, Naoki; Seki, Takeo

Nagoya Daigaku Kasokuki Shitsuryo Bunsekikei Gyoseki Hokokusho, 22, p.169 - 173, 2011/03

An accelerator mass spectrometry at Mutsu office, Japan Atomic Energy Agency (JAEA AMS MUTSU) was established in 1997 and the routine operation of radiocarbon measurement was started from 1999. The radiocarbon was measured by 1,053 samples in 2010, and the number of radiocarbon measurements reached 10,342 samples since the routine operation. This AMS has adopted the open door policy for the general users from the fiscal year of 2006 and various researches have been in progress by many users. In this presentation, I introduce the current status of JAEA AMS MUTSU.

Journal Articles

Status of JAEA-AMS-MUTSU

Tanaka, Takayuki; Kabuto, Shoji; Kinoshita, Naoki; Suzuki, Takashi; Kuwabara, Jun; Seki, Takeo

Dai-13-Kai AMS Shimpojiumu Hokokusho, p.129 - 132, 2011/01

An accelerator mass spectrometry at Aomori Research and Development Center, JAEA (JAEA-AMS-MUTSU) was established in 1997 and the routine operation of $$^{14}$$C and $$^{129}$$I measurement was started from 1999 and 2003, respectively. This AMS has adopted the open door policy for the general users from the fiscal year of 2006 and various researches have been in progress by many users. In this presentation, we introduce the status of JAEA-AMS-MUTSU. The total number of measurements has increased well for five years after the open door policy excluding in 2008. The reasons for the decrease in 2008 were that we had stopped the operation of AMS for about one and half months because the operation system of AMS was upgraded, and that we could not measure the $$^{14}$$C for several months because the amplifier of detector had broken. We had resolved this trouble and our AMS can measure smoothly both $$^{14}$$C and $$^{129}$$I.

Journal Articles

Status of JAEA-AMS-MUTSU at 2009-2010

Tanaka, Takayuki; Kabuto, Shoji; Kinoshita, Naoki; Suzuki, Takashi; Kuwabara, Jun; Seki, Takeo

Dai-23-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.113 - 116, 2010/11

An accelerator mass spectrometry at Aomori Research and Development Center, JAEA (JAEA-AMS-MUTSU) was established in 1997 and the routine operation of $$^{14}$$C and $$^{129}$$I measurement was started from 1999 and 2003, respectively. This AMS has adopted the open door policy for the general users from the fiscal year of 2006 and various researches have been in progress by many users. In this presentation, we introduce the status of JAEA-AMS-MUTSU in the fiscal year of 2009. The $$^{14}$$C and $$^{129}$$I were measured by 480 and 677 samples in the fiscal year of 2009, respectively. The total number of measurements has decreased by 716 samples from that of the fiscal year of 2008. The reasons for this decrease were that we had stopped the operation of AMS for about one and half months because the operation system of AMS was upgraded, and that we could not measure the $$^{14}$$C for several months because the amplifier of detector had broken. We had resolved this trouble and our AMS can measure smoothly both $$^{14}$$C and $$^{129}$$I.

Journal Articles

Seawater circulation in the Japan Sea based on iodine-129

Suzuki, Takashi; Minakawa, Masayuki*; Kabuto, Shoji; Togawa, Orihiko

Dai-12-Kai AMS Shimpojiumu Hokokushu, p.69 - 72, 2010/05

no abstracts in English

Journal Articles

Sophistication $$^{14}$$C measurement at JAEA-AMS-MUTSU; Attempt on a small quantity of sample

Tanaka, Takayuki; Kabuto, Shoji; Kinoshita, Naoki; Yamamoto, Nobuo

JAEA-Conf 2010-001, p.122 - 125, 2010/03

In the investigations on substance dynamics using the molecular weight and chemical fractionation, the utilization of $$^{14}$$C measurement by an accelerator mass spectrometry (AMS) have started. As a result of the fractionation, sample contents required for AMS measurement have been downsized. We expect that this trend toward a small quantity of sample will be steadily accelerated in the future. As $$^{14}$$C measurement by AMS established at Mutsu office require about 2 mg of sample content at present, our AMS lags behind the others in the trend. We try to downsize the needed sample content for $$^{14}$$C measurement by our AMS. In this study, we modified the shape of the target-piece in which the sample is packed and which is regularly needed to radiocarbon measurement by our AMS. Moreover, we improved on the apparatus needed to pack the sample. As a result of the improvement, we revealed that it is possible to measure the $$^{14}$$C using our AMS even by the amount of the sample of about 0.5 mg.

Journal Articles

Status of recent utilization of JAEA AMS MUTSU and the revision of the charge

Yamamoto, Nobuo; Kinoshita, Naoki; Kabuto, Shoji; Tanaka, Takayuki

JAEA-Conf 2010-001, p.88 - 91, 2010/03

Tandetron Accelerator Mass Spectrometer in the Japan Atomic Energy Agency Mutsu office (JAEA AMS Mutsu: High Voltage Engineering Europa product, Model 4130-AMS) consists of 3MV tandem type accelerator and the 2 beam lines for measurement of isotope ratio for carbon and iodine. Steady operation of carbon beam line was started in December, 1999 and that of iodine beam line was started in May, 2003. This facility was initially used for studies on transport processes of radionuclides in marine environment. From the fiscal year 2006, this facility became a shared facility to provide data for various projects at JAEA and others. This report describes the status of recent utilization of JAEA AMS MUTSU and the revision of the charge from fiscal year 2010.

Journal Articles

Operational status of the JAEA-MUTSU tandetron AMS 2008-2009

Kabuto, Shoji; Kinoshita, Naoki; Tanaka, Takayuki; Yamamoto, Nobuo

JAEA-Conf 2010-001, p.126 - 129, 2010/03

A Tandetron Accelerator Mass Spectrometer (AMS) manufactured by High Voltage Engineering Europa in Netherlands had been set up at the Mutsu office of Aomori Research and Development Center, Japan Atomic Energy Agency (JAEA) in 1997. This AMS features 3MV Tandetron accelerator and two independence beamlines for $$^{14}$$C and $$^{129}$$I measurement. This AMS has measured both internal and external JAEA researcher's samples based on an open door policy since April 2006. Furthermore, the total operation time of this AMS from the routine operation started exceeds more than 20,000 hours in this year. In this report, we describe not only the summary of the current status and troubles from the previous symposium but also the upgrading of the operation system in this AMS which is carried out from June to July in 2009.

Journal Articles

Current status of $$^{14}$$C measurement at JAEA-AMS-MUTSU

Tanaka, Takayuki; Kabuto, Shoji; Kinoshita, Naoki; Yamamoto, Nobuo

KURRI-KR-153, p.29 - 34, 2010/03

An accelerator mass spectrometry at Mutsu office, Japan Atomic Energy Agency (JAEA AMS MUTSU) was established in 1997 and the routine operation of radiocarbon measurement was started from 1999. The radiocarbon was measured by 1,193 samples last year, and the number of radiocarbon measurements reached 8,809 samples since the routine operation. This AMS has adopted the open door policy for the general users from the fiscal year of 2006 and various researches have been in progress by many users. As a operate system of this AMS had been controlled under Windows 3.1 since installation, it was difficult to purchase spare parts which are compatible with Windows 3.1. The operation system was upgraded to Windows XP in this year. In this presentation, I introduce the current status of JAEA AMS MUTSU, upgrading of the operation system and moreover an extraction method for determination of dissolved organic radiocarbon which was developed in this year.

Journal Articles

An Inter-laboratory comparison study on $$^{14}$$C measurements between two AMS laboratories of Nagoya University and JAEA Mutsu

Nakamura, Toshio*; Tanaka, Takayuki; Kabuto, Shoji; Ota, Tomoko*

Nagoya Daigaku Kasokuki Shitsuryo Bunsekikei Gyoseki Hokokusho, 21, p.159 - 165, 2010/03

An inter-laboratory comparison of $$^{14}$$C dating studies with AMS were performed between Nagoya University and JAEA. Two kinds of archeological samples used for the intercomparison were offered from the Education Board of Nirasaki city. One part of them was a charred rice sample with known historical age, which was collected from the ruin of Shimpu-Jo castle remains. The rice was charred when the castle was burnt in 1582, when the castle was abandoned by Katsuyori Takeda during the battle against the combined military forces of Oda and Tokugawa families. The other samples were charred pyrenes of peach and nutshells of Japanese walnut collected from the Shukujiri-Daini-Iseki archeological site. The results from the two AMS laboratories were quite consistent within statistical uncertainties. In addition, calibrated $$^{14}$$C ages for the charred rice samples were also consistent with the historical age when the Shimpu-Jo castle was burnt down.

Journal Articles

Status of JAEA-AMS-MUTSU at 2008-2009

Suzuki, Takashi; Otosaka, Shigeyoshi; Tanaka, Takayuki; Kabuto, Shoji; Kinoshita, Naoki; Yamamoto, Nobuo

Dai-22-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.107 - 110, 2010/01

Tandetron Accelerator Mass Spectrometer in the Japan Atomic Energy Agency Mutsu office (JAEA-AMS-Mutsu: High Voltage Engineering Europa product, Model 4130-AMS) consists of 3MV tandem type accelerator and the 2 beam lines for measurement of isotope ratio for carbon and iodine. Steady operation of carbon beam line was started in December, 1999 and that of iodine beam line was started in May, 2003. This facility was initially used for studies on transport processes of radionuclides in marine environment. From the fiscal year 2006, this facility became a shared facility to provide data for various projects at JAEA and others. This report describes the operational situation and a confirmation result of the quality of the measurement data in fiscal year 2008 (April 1, 2008 - March 31, 2009).

Journal Articles

Measurement of iodine-129 in seawater samples collected from the Japan Sea area using accelerator mass spectrometry; Contribution of nuclear fuel reprocessing plants

Suzuki, Takashi; Kabuto, Shoji; Amano, Hikaru; Togawa, Orihiko

Quaternary Geochronology, 3(3), p.268 - 275, 2008/08

 Times Cited Count:25 Percentile:57.91(Geography, Physical)

no abstracts in English

JAEA Reports

Proceedings of the 1st JAEA Tandetron AMS Utilization Workshop; November 14, 2007, Mutsu-shi Japan

Amano, Hikaru; Kabuto, Shoji

JAEA-Conf 2008-003, 90 Pages, 2008/04

JAEA-Conf-2008-003.pdf:26.68MB

Accelerator Mass Spectrometer (AMS) can determine ultra low level long-lived radioactive isotopes in high sensitivity and precision. Tandetron AMS had been adjusted for the measurement of $$^{14}$$C and $$^{129}$$I. The AMS has mainly been used for marine research around the Japan Sea. This AMS has adopted the open door policy for the general users from the spring of 2006. Recently varieties of research activities using this AMS have been in progress by many users. This biennial workshop aimed to not only exchange information on the AMS and its utilization but also continue stable operation of the AMS. First JAEA Tandetron AMS Utilization Workshop was held at Mutsu office, JAEA in November 14, 2007. In the workshop 76 participants attended. The topics of the conference concerned recent utilization status of AMS, data processing from the AMS, $$^{14}$$C and $$^{129}$$I measurement and their application, and so on. This proceeding includes 21 papers at the workshop.

Journal Articles

Quality policy on radiocarbon measurement at the JAEA-Mutsu AMS

Otosaka, Shigeyoshi; Amano, Hikaru; Kabuto, Shoji; Kinoshita, Naoki; Tanaka, Takayuki

JAEA-Conf 2008-003, p.21 - 23, 2008/04

no abstracts in English

Journal Articles

Measurement of $$^{129}$$I by JAEA AMS MUTSU and application to study of iodine migration

Suzuki, Takashi; Kabuto, Shoji; Kinoshita, Naoki; Amano, Hikaru; Togawa, Orihiko

JAEA-Conf 2008-003, p.24 - 27, 2008/04

no abstracts in English

Journal Articles

Operational status of the JAEA AMS-Mutsu tandem AMS

Kabuto, Shoji; Kinoshita, Naoki; Watanabe, Yukiya*; Baba, Masami*; Amano, Hikaru

JAEA-Conf 2008-003, p.13 - 16, 2008/04

no abstracts in English

Journal Articles

Status of recent utilization of JAEA AMS MUTSU

Amano, Hikaru; Kabuto, Shoji; Kinoshita, Naoki

JAEA-Conf 2008-003, p.9 - 12, 2008/04

no abstracts in English

Journal Articles

Status of JAEA AMS-MUTSU at 2006-2007

Amano, Hikaru; Kabuto, Shoji; Kinoshita, Naoki; Watanabe, Yukiya*

JAEA-Conf 2008-005, p.38 - 41, 2008/03

no abstracts in English

Journal Articles

Determination of $$^{129}$$I in environmental samples by AMS and NAA using an anion exchange resin disk

Suzuki, Takashi; Bamba, Shigeru*; Kitamura, Toshikatsu; Kabuto, Shoji*; Isogai, Keisuke*; Amano, Hikaru

Nuclear Instruments and Methods in Physics Research B, 259(1), p.370 - 373, 2007/06

 Times Cited Count:12 Percentile:66.47(Instruments & Instrumentation)

no abstracts in English

41 (Records 1-20 displayed on this page)