uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Neutron spectroscopy as a fuel ion ratio diagnostic: Lessons from JET and prospects for ITER
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Show others and affiliations
2010 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 81, no 10, 10D324- p.Article in journal (Refereed) Published
Abstract [en]

The determination of the fuel ion ratio n(t)/n(d) in ITER is required at a precision of 20%, time resolution of 100 ms, spatial resolution of a/10, and over a range of 0.01<10. We use simplified but realistic Monte Carlo models of ITER to assess the possibility to use neutron emission spectroscopy ((NES) for such measurements. We show that NES meets the requirements for ion temperatures T-i>6 keV and for n(T)/n(D)<0.6. A crucial issue is the signal-to-background situation in the measurement of the weak 2.5 MeV emission from DD reactions in the presence of a background of scattered 14 MeV DT neutrons. Important experimental input and corroboration for this assessment are presented from the time-of-flight neutron spectrometer at JET where the presence of a strong component of backscattered neutrons is observed. Neutron emission components on ITER due to beam-thermal and tritium-tritium reactions can further enhance the prospects for NES.

Place, publisher, year, edition, pages
2010. Vol. 81, no 10, 10D324- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-139247DOI: 10.1063/1.3502323ISI: 000283754000025OAI: oai:DiVA.org:uu-139247DiVA: diva2:381000
Available from: 2010-12-22 Created: 2010-12-22 Last updated: 2017-12-11

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Ericsson, G.Conroy, S.Andersson Sundén, E.Cecconello, MarcoEriksson, JacobHellesen, CarlWeiszflog, Matthias

Search in DiVA

By author/editor
Ericsson, G.Conroy, S.Andersson Sundén, E.Cecconello, MarcoEriksson, JacobHellesen, CarlWeiszflog, Matthias
By organisation
Department of Physics and Astronomy
In the same journal
Review of Scientific Instruments
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 356 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf