Mr
sebastien richet
(iaea)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
In order to address large flows and inventories of sensitive nuclear material, Near Real Time Accountancy (NRTA) was introduced in the mid 1990’s, as a complementary safeguards verification method for MOX facilities in Japan, and, to a lesser extent, for some fuel fabrication plants.
This move was possible once computational capabilities reached a sufficient level to allow on site calculation...
Ms
Yimei Cheng
(China Institute of Atomic Energy)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
This work had optimal designed and established a new technology based device of neutron multiplicity counting for nuclear material accountancy in nuclear safeguards, and carried out some related performance testing, which indicated the operating state of this device was completely normal and all the indications were acceptable. Meanwhile, some related research for neutron multiplicity counting...
Mr
David Sullivan
(Mirion Technologies (Canberra))
Shaping the future of safeguards implementation (SGI)
Wedge Participant
Mirion Technologies, with the acquisition of Canberra, is currently in the process of merging the best technologies from their combined portfolios. The Spir-Ace is one product receiving such treatment. The Spir-Ace is a scintillator based portable Radionuclide Identification Device in an IP64 rated enclosure that has been tested to show ISOCS compatibility. With options that include alpha,...
Mr
TAKAYUKI TAMURA
(JAPAN NUCLEAR FUEL LIMITED)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
At the Rokkasho Reprocessing Plant, MOX powder is converted from Plutonium-Uranyl nitrate solution by microwave heating. In this conversion process, large amounts of bulk plutonium material are treated. Therefore, Neutron measurement system with highly accurate, called Plutonium Inventory Measurement System (PIMS) have been introduced for material accountancy purpose and inspection use by...
Mr
Gábor Radócz
(Budapest University of Technology and Economics, Institute of Nuclear Techniques)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
A new gamma spectrometry method was developed for determination of isotope-selective activities of radioactive waste materials out in order to support the waste management. Investigation of radioactive materials should be often performed under in situ measuring conditions especially in nuclear energy industry. Therefore, the applied gamma spectrometer must be portable, easy to handle and good...
Dr
Douglas Chase Rodriguez
(Japan Atomic Energy Agency)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
Safeguards practices instituted by the International Atomic Energy Agency (IAEA) for reprocessing facilities address both techniques used for nuclear material (NM) control and accountancy (MC&A) and methods to maintain continuity-of-knowledge (CoK). Intense protocols have been developed to verify the declared composition and content of the NM solutions through Destructive Analysis (DA)...
Mr
Mitsuo KOIZUMI
(Japan Atomic Energy Agency)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
The Japan Atomic Energy Agency (JAEA) and the European Commission-Joint Research Center (EC-JRC) are jointly developing nondestructive neutron-interrogation assay techniques for nuclear material accountancy applicable to both low and highly radioactive nuclear materials (NMs) and for nuclear security purposes (such as detection of nuclear and explosive materials). The techniques being...
Mr
satoshi suzuki
(JAEA/E&E Techno Service Co.Ltd.)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
To further improve effectiveness of safeguards activity, a new detector to enable monitoring of Pu in solutions with numerous FPs is being developed as a joint research program with U.S. DOE at the High Active Liquid Waste (HALW) Storage in Tokai Reprocessing Plant. The HALW contains Pu and FPs and is located inside a thick concrete cell for shielding.
According to the development plan, we...
Dr
Rasha Eltayebany
(ENRRA)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
This paper focuses on installation of a new geometry and array of detectors to investigate reduction and suppression of unwanted noises and background to enhance P/C ratio. This objective is positively affecting the accuracy of safeguarded nuclear materials assay. The new array consists of three sodium iodide (NaI) detectors; one of them is in annular perpendicular position and the others are...
Dr
Megumi Sekine
(Japan Atomic Energy Agency)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
The IAEA has proposed in its Research and Development plan (STR-385), the development of technology to enable real-time flow measurement of nuclear material as a part of an advanced approach to effective and efficient safeguards for reprocessing facilities. To address this, JAEA and JNFL has previously designed and developed a neutron coincidence based nondestructive assay system to monitor Pu...
Mr
Kazuki Nakahara
(Nuclear Material Control Center)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
Generally, uncertainty of material balance (σMUF) of large bulk-handling nuclear facilities will be consequently large according to the throughput of nuclear materials. In order to establish and to apply an effective and accurate material accountancy system to such facilities, the Safeguards by Design (SBD) concept should be introduced prior to construction of the facilities. As a part of it,...
Mr
Tebogo Mokgobi Leshilo
(NECSA)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
HA-AWCC Instrumental Test Prior Hot Commissioning for Characterisation of U-residue from 99Mo Production Process in the Republic of South Africa.
TM Leshilo1, R Chauke1, PP Magampa1, HM Bohlolo 1, JA Chapman 2, RD McElroy 2
1. South African Nuclear Energy Corporation, Pretoria, South Africa.
2. Oak Ridge National Laboratory, Oak Ridge, USA
Abstract
99Mo...
Prof.
Wael El-Gammal
(Head, Department of Safeguards and Physical Protection)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
Fast detection of gross defects in regularly distributed Nuclear Material could be achieved via employing dynamic measurements. In some cases, the use of non-destructive static measurements (at which the measuring device and the measured sample are located in fixed positions) may not provide sufficient information about a measured item. This may occur due to self-attenuation and/or screening...
Mr
Shinichi Kumakura
(Nuclear Material Control Center)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
Currently, several bulk-handling facilities (BHF) in Japan are in the decommissioning stage, in preparation for their planned permanent shutdown, while others have suspended part of their operations. The operational status of these BHF may be different, but the material balance evaluation (MBE) challenges are similar: in both cases, facilities may retain large amounts of static material and/or...
Mr
Sergey Bogdanov
(Alexandrovich)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
The Hybrid K-Edge/K-XRF (HKED) densitometer for measurements of U and Pu concentration in input solution was installed in the radiochemical plant RT-1 analytical laboratory of the “Mayak” site on 2007. English version of HKED software developed for OpenWMS hardware platform, has a difficult and complicated interface and lacks option for Pu concentration calculation on XRF and Hybrid modes. The...
Ms
Jiewen Shao
(China Institute of Atomic Energy)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
Nuclear material accounting and control will still be an important measure for the nuclear safeguards system. According to the requirements of safeguards and national nuclear material control, measurements of nuclear material contained in the waste is also required to reduce the material unaccounted for (MUF) at nuclear fuel cycle facilities. Determination of the quantity of nuclear material...
Dr
Binh DINH
(French Alternative Energies and Atomic Energy Commission)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
For the design of purification cycles using liquid liquid extraction techniques, a process development approach based on process modelling was chosen. This approach allowed the production a qualified simulation tool that has been succesfully used for process flowsheet design of industrial plants, safety analysis of plant operation. Possible software applications for plant operation aid using...
Mr
Masahiko Yamamoto
(Japan Atomic Energy Agency)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
$\hspace{3mm}$Verification of uranium (U) and plutonium (Pu) is a vital task for safeguards inspection activities of IAEA in nuclear fuel reprocessing facilities. As part of this task, U and Pu are accurately analyzed even if only small quantities are present in radioactive waste such as highly active liquid waste (HALW). For determining U and Pu contents in HALW, isotope dilution mass...
Mr
Jean-Luc DUFOUR
(IRSN)
Shaping the future of safeguards implementation (SGI)
Wedge Participant
The paper presents the work performed at IRSN to optimise the traditional enrichment meter method applied to uranium enrichment measurement in 30B and 48Y UF6 cylinders by high resolution gamma spectrometry, to evaluate the parameters influencing the measurement result and the associated uncertainties.
The calibration between the uranium enrichment and the net count rate of the 185.7 keV...
