Low-level gamma-ray spectrometry for analysing fusion plasma conditions
Creators
- 1. Department of Physics, P.O. Box 35 (YFL), FIN-40014 University of Jyvaeskylae (Finland)
- 2. EU Commission - JRC - IRMM, Institute for Reference Materials and Measurements, Retieseweg 111, B-2440 Geel (Belgium)
- 3. Laboratory for Plasma Physics, Association 'Euratom-Belgian State', Royal Military Academy, Avenue de la Renaissance, 30 Kunstherlevinglaan, B-1000 Brussels (Belgium)
- 4. Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig (Germany)
- 5. Laboratori Nazionali del Gran Sasso, S.S. 17/bis, km 18-910, I-67010 Assergi (AQ) (Italy)
- 6. SCK-CEN, Boeretang, B-2400 Mol (Belgium)
Description
A new method, combining activation by neutrons and charged particles with ultra low-level gamma-ray spectrometry, aimed at obtaining a better understanding and more adequate measurements of MeV particle leaks in magnetic fusion devices was studied here. A total of 36 samples containing Ti, LiF, B4C and W were placed in a boron-nitride holder mounted on the ceiling of the JET Tokamak. The samples were activated by 63 pulses from a D-3He plasma and were later measured using underground gamma-ray spectrometry. The radionuclides 7Be, 46Sc, 54Mn, 56Co, 57Co, 58Co, 124Sb, 181Hf, 182Ta, 181W and 185W were detected in several of the samples, with very low levels of activity of 47Sc and 48V found in a few of the samples. The various production channels for the radionuclides in question are discussed
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nima.2008.02.052Additional details
Identifiers
- DOI
- 10.1016/j.nima.2008.02.052;
- PII
- S0168-9002(08)00225-8;
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 591
- Journal Issue
- 2
- Journal Page Range
- p. 383-393
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40034012
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ANTIMONY 124; BERYLLIUM 7; BORON CARBIDES; BORON NITRIDES; COBALT 56; COBALT 57; COBALT 58; GAMMA SPECTROSCOPY; HAFNIUM 181; JET TOKAMAK; LITHIUM FLUORIDES; MANGANESE 54; SCANDIUM 46; SCANDIUM 47; TANTALUM 182; TUNGSTEN 181; TUNGSTEN 185; VANADIUM 48
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALINE EARTH ISOTOPES; ANTIMONY ISOTOPES; BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CLOSED PLASMA DEVICES; COBALT ISOTOPES; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; FLUORIDES; FLUORINE COMPOUNDS; HAFNIUM ISOTOPES; HALIDES; HALOGEN COMPOUNDS; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; LITHIUM COMPOUNDS; LITHIUM HALIDES; MANGANESE ISOTOPES; MILLISECONDS LIVING RADIOISOTOPES; MINUTES LIVING RADIOISOTOPES; NITRIDES; NITROGEN COMPOUNDS; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PNICTIDES; RADIOISOTOPES; SCANDIUM ISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTROSCOPY; TANTALUM ISOTOPES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; TUNGSTEN ISOTOPES; VANADIUM ISOTOPES
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.