"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Mechanical design of the upgraded JET gamma-ray cameras

S. SOARE1,* , M. CURUIA1, V. KIPTILY2, A. MURARI3, P. PRIOR2, V. ZOITA4, M. ANGHEL1, G. BONHEURE5, M. CONSTANTIN1, E. DAVID1, T. EDLINGTON2, S. GRIPH2, F. LE GUERN6, Y. KRIVCHENKOV2, S. POPOVICHEV2, V. RICCARDO2, B. SYME2, V. THOMPSON2

Affiliation

  1. Association EURATOM-MEdC, National Institute for Cryogenics and Isotopic Technologies, Rm. Valcea, Romania
  2. Association EURATOM-UKAEA/JOC, Culham Science Centre, Abingdon, UK
  3. Association EURATOM-ENEA, RFX, Padova, Italy
  4. Association EURATOM-MEdC, National Institute for Laser, Plasma and Radiation Physics, Bucharest, Romania
  5. Association EURATOM-Belgian State, LPP-ERM/KMS, B 1000 Brussels, Belgium
  6. JET-CSU, Culham Science Centre, Abingdon, UK

Abstract

The JET gamma-ray camera diagnostics have already provided valuable information on the gamma-ray imaging of fast ion in JET plasmas /1, 2/. The JET Gamma-Ray Cameras (GRC) upgrade project deals with the design of appropriate neutron/gamma-ray filters (“neutron attenuators”). The main design parameter was the neutron attenuation factor /3/. The two design solutions, that have been finally chosen and developed at the level of scheme design, consist of: a) one quasi-crescent shaped neutron attenuator (for the horizontal camera) and b) two quasi-trapezoid shaped neutron attenuators (for the vertical one). Pure light water was chosen as the attenuating material for the JET gamma-ray cameras. Finite Element Analysis (FEA) methods used to evaluate the behaviour of the filter casings under the loadings (internal hydrostatic pressure torques) have proven the stability of the structure..

Keywords

Tokamak, Diagnostics, Gamma-rays.

Submitted at: March 1, 2008
Accepted at: July 10, 2008

Citation

S. SOARE, M. CURUIA, V. KIPTILY, A. MURARI, P. PRIOR, V. ZOITA, M. ANGHEL, G. BONHEURE, M. CONSTANTIN, E. DAVID, T. EDLINGTON, S. GRIPH, F. LE GUERN, Y. KRIVCHENKOV, S. POPOVICHEV, V. RICCARDO, B. SYME, V. THOMPSON, Mechanical design of the upgraded JET gamma-ray cameras, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 8, pp. 2088-2091 (2008)