AMS Measurement of 59Ni at China Institute of Atomic Energy

Radiocarbon ◽  
2013 ◽  
Vol 55 (2) ◽  
pp. 302-307 ◽  
Author(s):  
Ming He ◽  
Xiangdong Ruan ◽  
Wei Wang ◽  
Liang Dou ◽  
Lingbo Xie ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Radioactive Waste ◽  
Waste Management ◽  
Accelerator Mass Spectrometry ◽  
Detection System ◽  
Atomic Energy ◽  
Detection Sensitivity ◽  
Research Fields ◽  
Laboratory Reference ◽  
Reference Samples

The long-lived radioisotope 59Ni is of interest in various research fields including neutron dosimetry, radioactive waste management, and astrophysics. In order to achieve the sensitivity required for such applications, the technique of accelerator mass spectrometry (AMS) 59Ni measurement has been developed at the AMS facility at China Institute of Atomic Energy (CIAE). Based on the AE-Q3D detection system in the CIAE AMS facility, the interference in 59Ni counting from the isobar 59Co has been reduced by a factor of 8 × 106. A series of laboratory reference samples and a blank sample were measured to check the performance of 59Ni measurement. A detection sensitivity of about 5 × 10−13 (59Ni/Ni) has been obtained.

Radioactive Waste Management in Lebanon

2010 ◽  
Author(s):  
Muzna Assi
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Atomic Energy Commission ◽  
Atomic Energy ◽  
Technical Cooperation ◽  
Energy Agency ◽  
Research Fields ◽  
Reference Number ◽  
Orphan Sources ◽  
Radioactive Sources

The disused sealed radioactive sources including orphan sources in Lebanon, along with the growing industry of sealed radioactive sources in medical, industrial and research fields have posed a serious problem for authorities as well as users due to the lack of a national store for disused radioactive sources. Assistance from the International Atomic Energy Agency (IAEA) was requested to condition and store disused radium needles and tubes present at two facilities. The mission took place on July 25, 2001 and was organized by the IAEA in cooperation with the Lebanese Atomic Energy Commission (LAEC). Other disused radioactive sources were kept in the facilities till a safer and securer solution is provided; however orphan sources, found mainly during export control, were brought and stored temporarily in LAEC. The necessity of a safe and secure store became a must. Prior to October 2005, there was no clear legal basis for establishing such store for disused radioactive sources, until the ministerial decree no 15512 dated October 19, 2005 (related to the implementation of decree-law no 105/83) was issued which clearly stated that “The LAEC shall, in cooperation with the Ministry of Public Health, establish a practical mechanism for safe disposal of radioactive waste”. Following this, the work on inventory of disused sealed sources along with collecting orphan sources and placing them temporarily in LAEC was legally supported. Moreover, several missions were planned to repatriate category I and II sources, one of which was completed specifically in August 2009; other missions are being worked on. In 2008, a national technical cooperation project with the IAEA was launched. Under the Technical Cooperation (TC) project with reference number LEB3002, the project was entitled “Assistance in the establishment of a safe temporary national storage at the LAECfor orphan sources and radioactive waste” which cycle is 2009–2011. Under this project, a national store for radioactive sources in the third basement of LAEC is being established. The area is being reconstructed currently and will be equipped when ready under LEB3002 project. Along with this, a system for sealed disused sources management has been prepared, part of which is applied now and the rest will be applied upon the establishment of the store. This paper will cover the inventory collection process, the study for the establishment of this store, the present and prospective waste management system, and the waste acceptance criteria.

scholarly journals Accelerator Mass Spectrometry at Arizona: Geochronology of the Climatic Record and Connections with the Ocean

2002 ◽  
Vol 2 ◽  
pp. 1579-1593 ◽  
Author(s):  
J.T. Jull ◽  
G.S. Burr ◽  
J.W. Beck ◽  
D.J. Donahue ◽  
D. Biddulph ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Radioactive Waste ◽  
Environmental Conditions ◽  
Accelerator Mass Spectrometry ◽  
Time Scale ◽  
Southern Oscillation ◽  
Waste Dump ◽  
Short Term ◽  
Millennial Time Scale ◽  
Climatic Record

There are many diverse uses of accelerator mass spectrometry (AMS).14C studies at our laboratory include much research related to paleoclimate, with14C as a tracer of past changes in environmental conditions as observed in corals, marine sediments, and many terrestrial records. Terrestrial records can also show the influence of oceanic oscillations, whether they are short term, such as ENSO (El Niño/Southern Oscillation), or on the millennial time scale. In tracer applications, we have developed the use of129I as well as14C as tracers for nuclear pollution studies around radioactive waste dump sites, in collaboration with IAEA. We discuss some applications carried out in Tucson, AZ, for several of these fields and hope to give some idea of the breadth of these studies.

Solid Radioactive Waste Management Facility Design for Managing Candu® 600 MW Nuclear Generating Station Retube/Refurbishment Waste Streams

2007 ◽  
Author(s):  
N. Pontikakis ◽  
D. Scott ◽  
J. Hopkins ◽  
V. Bajaj ◽  
L. Nosella
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Atomic Energy ◽  
Waste Streams ◽  
Design Features ◽  
Main Design ◽  
Design Activities ◽  
Solid Radioactive Waste ◽  
Waste Handling ◽  
Canada Limited

The main design features of the retube canisters, waste handling equipment and waste containers designed by Atomic Energy of Canada Limited (AECL®) and implemented in support of the retube/refurbishment activities for CANDU 600 MW nuclear generating stations are described in this paper. The retube/refurbishment waste characterization and the waste management principles, which form the basis of the design activities are also briefly outlined.

Are Compact AMS Facilities a Competitive Alternative to Larger Tandem Accelerators?

Radiocarbon ◽  
2010 ◽  
Vol 52 (2) ◽  
pp. 319-330 ◽  
Author(s):  
M Suter ◽  
A M Müller ◽  
V Alfimov ◽  
M Christl ◽  
T Schulze-König ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
The Netherlands ◽  
High Voltage ◽  
Accelerator Mass Spectrometry ◽  
Biomedical Applications ◽  
Detection System ◽  
Ion Optics ◽  
Recent Developments ◽  
High Voltage Engineering

In the last decade, small and compact accelerator mass spectrometry (AMS) systems became available operating at terminal voltages of 1 MV and below. This new category of instruments has become competitive for radiocarbon detection to larger tandem accelerators and many of these instruments are successfully used for 14C dating or biomedical applications. The AMS group at ETH Zurich has demonstrated that small instruments can be built, which allow measurements also of other radionuclides such as 10Be, 26Al, 129I, and the actinides. 41Ca measurements can be performed with sufficient sensitivity for biomedical applications. A summary of recent developments made at the 500kV Pelletron in Zurich is given and its performance is compared with that of a commercial compact instrument from the company High Voltage Engineering Europe (HVEE) in Amersfoort, the Netherlands, operating at 1MV at CNA in Seville, Spain, as well as with that of larger AMS facilities. It turns out that the ion optics, stripper design, and the detection system are critical for the performance.

Radioactive Waste and Spent Fuel Management in Argentina

2012 ◽  
Vol 1475 ◽  
Author(s):  
Elvira Rosa Maset
Keyword(s):  
Radioactive Waste ◽  
Waste Management ◽  
Environmental Remediation ◽  
Power Plants ◽  
Fuel Cycle ◽  
Atomic Energy Commission ◽  
Atomic Energy ◽  
Spent Fuel ◽  
Radioactive Waste Management ◽  
Management Regime

ABSTRACTSince its creation in 1950, the Argentine Atomic Energy Commission (CNEA), has worked on the development of applications for the peaceful use of nuclear energy. They include, among others, research and development activities in basic and nuclear technology areas, the operation of important facilities for the production of radioisotopes and the performance of tasks in connection with the nuclear fuel cycle, mining and uranium processing activities, manufacturing of fuel elements, production of heavy water and the operation of two nuclear power plants. Also demonstrating reprocessing programs have been developed.As a result of the above mentioned activities performed in the nuclear field by private and public entities, various types of radioactive waste have been and are produced during operation and maintenance of facilities and plants, and will be produced in their future decommissioning. CNEA is also responsible for the environmental remediation of the closed uranium mining and milling facilities and for the management of disused sealed sources from medical and industrial applications.Activities concerning radioactive waste management are carried on according not only to Nuclear Regulatory Authority requirements and International Atomic Energy Agency recommendations, but also to the national legal framework.The Law Nº 25.018, "Radioactive Waste Management Regime“(1998), created the National Program for Radioactive Waste Management (PNGRR), as part of CNEA organization.

Radioactive Waste Characterization and Tracking System at the French Atomic Energy Commission

2013 ◽  
Author(s):  
Hervé Lamotte ◽  
Luc Torreblanca ◽  
Suzel Vilarel
Keyword(s):  
Information System ◽  
Radioactive Waste ◽  
Waste Management ◽  
Waste Treatment ◽  
Solid Waste Management ◽  
Tracking System ◽  
Atomic Energy Commission ◽  
Atomic Energy ◽  
New Information ◽  
Before And After

CARAIBES is the traceability information system in radioactive solid waste management of the French Atomic Energy Commission, (CEA). Initially developed for the reprocessing facility of low and intermediate level waste of the centre of Cadarache, it has been gradually enhanced to manage very low level waste and the facilities of the centres of Saclay and Fontenay-aux-Roses. This software is directly connectable to characterization equipment as X-Ray measurement, gamma spectrometric measurement and/or neutronic measurement. After 15 years of operation, a new information system should replace it in 2014. This new CARAIBES V2 will make the functional and technical improvements resulting from the CARAIBES feedback but will also allow to manage all produced and/or treated waste in the Atomic Energy Commission and to ensure the traceability of waste and waste treatment before and after its packaging. From the analysis of the processes, waste management was described as an iterative process where, in every step, the facility in charge of a waste will apply a treatment to it (packaging, association or division) and will characterize it in order to evacuate it towards the next facility. Associated with a strongly customizable information system, this process allows the management of all kind of radioactive waste, including radioactive liquids. The final objectives are: to share a unique software and only one database for all CEA’s facilities involved in radioactive waste management, to be able to track the radioactive waste through all steps of its process, to meet the user’s needs as well as the regulatory requirements.

Sign in / Sign up

Export Citation Format

Share Document