Progress on common aspects of the EU-supplied ITER diagnostics and prediction of diagnostic performance

Ingesson, L. C.; Campbell, D. J.; Cecconello, M.; Ciattaglia, E.; Dirken, P.; Hawkes, N.; Walsh, M.; von Hellermann, M.; Kálvin, S.; McCarthy, P.; Neubauer, O.; Petrizzi, L.
October 2006
Review of Scientific Instruments;Oct2006, Vol. 77 Issue 10, p10F502
Academic Journal
The European Union will supply a number of diagnostics for ITER. Significant progress has been made on the design and integration of these diagnostics. Specific topics, in common for several of the diagnostics, discussed are port-plug integration, simplification of labyrinths against neutron streaming, and design measures to protect and to be able to replace sensitive optical components. Performance analysis to predict the likely capability of the diagnostics to meet the ITER measurement requirements will be an important aspect of the design process. The interpretation of the measurement requirements, specifically of spatial resolution in the case of indirect measurements, is discussed on the basis of two examples, and methods of performance analysis are compared.


Related Articles

  • A 14 MeV neutron spectrometer for the Joint European Torus deuterium-tritium experiments. Hawkes, N.P.; van Belle, P.; Bond, D.S.; Croft, S.; Jarvis, O.N. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p1134 

    Describes the installation of a 14 MeV neutron spectrometer, based on the principle of the proton recoil telescope, as a deuterium-tritium plasma diagnostic at the Joint European Torus. Three identical telescopes comprising the device; View of the plasmas along a horizontal line of sight; Total...

  • The equilibrium and preequilibrium neutron-emission spectra of some structural fusion materials for ( n, xn) reactions up to 16 MeV energy. Kaplan, A.; Tel, E.; Aydin, A. // Physics of Atomic Nuclei;Jun2009, Vol. 72 Issue 6, p903 

    In this study, neutron-emission spectra produced by ( n, xn) reactions for some structural fusion materials as 27Al, 51V, 52Cr, 55Mn, and 56Fe have been investigated by a neutron beam up to 16 MeV. Multiple preequilibrium mean-free-path constant from internal transition and the preequilibrium...

  • Energy and direction distribution of neutrons in workplace fields: implication of the results from the EVIDOS project for the set-up of simulated workplace fields. Luszik-Bhadra, M.; Lacoste, V.; Reginatto, M.; Zimbal, A. // Radiation Protection Dosimetry;Aug2007, Vol. 126 Issue 1-4, p151 

    Workplace neutron spectra from nuclear facilities obtained within the European project EVIDOS are compared with those of the simulated workplace fields CANEL and SIGMA and fields set-up with radionuclide sources at the PTB. Contributions of neutrons to ambient dose equivalent and personal dose...

  • A phoswich detector for high-energy neutrons. Takada, M.; Nakamura, T. // Radiation Protection Dosimetry;Aug2007, Vol. 126 Issue 1-4, p178 

    A phoswich detector was developed to measure neutron energy spectra from a few MeV to a few hundreds MeV in aircrafts and space crafts. Radiation fields, which both crafts are exposured, consist of neutrons, gamma rays, protons, etc. The phoswich detector can measure neutrons separately from...

  • Modified method of α determination in the 1/ E1+α epithermal neutron spectrum of reactor. Tran Van Hung // Journal of Radioanalytical & Nuclear Chemistry;Aug2010, Vol. 285 Issue 2, p331 

    A modified method has been developed for the α determination in the 1/ E1+α epithermal neutron spectrum of reactor. It is based on the Cd-covered and without Cd-covered irradiations of two monitors. This method was applied to determine the α value in the channels of Dalat reactor and...

  • CERN (CENTRE EUROPÉEN POUR LA RECHERCHE NUCLÉAIRE.  // Europe: A Concise Encyclopedia;2004, p23 

    A description of the term CERN, which refers to Centre Européan Pour La Recherche Nucléaire, is presented. CERN is the French acronym for Europe's Geneva, Switzerland-based advanced non-military high energy physics research centre. It is financed by European governments, including certain...

  • Measurements and Monte Carlo simulations of the spectral variations of the cosmic-ray-induced neutrons at the Pic du Midi over a 2-y period. Cheminet, A.; Hubert, G.; Lacoste, V.; Boscher, D. // Radiation Protection Dosimetry;Oct2014, Vol. 161 Issue 1-4, p284 

    In this paper, a Bonner Sphere Spectrometer extended to high energies (HERMEIS) was employed to measure continuously the cosmic-ray-induced neutron spectra over a long-term period (2 y) at mountain altitude and medium geomagnetic latitude (Pic du Midi de Bigorre in the French Pyrenees, +2885 m,...

  • The Thomson deflectometer: A novel use of the Thomson spectrometer as a transient field and plasma diagnostic. Ter-Avetisyan, S.; Schnürer, M.; Nickles, P. V.; Sokollik, T.; Risse, E.; Kalashnikov, M.; Sandner, W.; Priebe, G. // Review of Scientific Instruments;Mar2008, Vol. 79 Issue 3, p033303 

    Laser accelerated proton beams have been used for field characterization in expanding plasmas. The Thomson parabola spectrometer, as a charged particles analyzer, also allows precise measurement of the charged particles’ trajectories. The proton’s deflections by fast changing...

  • Innovations in optical coupling of the KSTAR electron cyclotron emission imaging diagnostic. Liang, T.; Tobias, B.; Kong, X.; Domier, C. W.; Luhmann, N. C.; Lee, W.; Yun, G. S.; Park, H. K. // Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10D909 

    The installation of a new electron cyclotron emission imaging diagnostic for the Korea Superconducting Tokamak Advanced Research (KSTAR) is underway, making use of a unique optical port cassette design, which allows placement of refractive elements inside the cryostat region without adverse...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics