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Abstract

A time-resolved energy dispersive X-ray diagnostic is being developed for the Tokamak à Configuration Variable (TCV) to measure the evolution of the plasma impurities, runaway electrons and electron temperature. A liquid nitrogen cooled Ge diode detects the X-ray photons which are processed by a spectroscopic amplifier and a locally developed interface amplifier and timing generator (IATG) unit. The energy spectrum is obtained using a fast digitizer and a software histogramming algorithm. These electronics components have been optimized to improve the data throughput to match high flux 2 seconds time duration of a TCV plasma pulse. This paper describes the diagnostic hardware with particular emphasis on the IATG unit.

Additional information

Authors: SOUSA J, Instituto Superior Técnico, Centro de Fusão Nuclear, Associação Euratom, Lisboa (PT);AMARO P, Instituto Superior Técnico, Centro de Fusão Nuclear, Associação Euratom, Lisboa (PT);AMORIM P, Instituto Superior Técnico, Centro de Fusão Nuclear, Associação Euratom, Lisboa (PT);VARANDAS C A F, Instituto Superior Técnico, Centro de Fusão Nuclear, Associação Euratom, Lisboa (PT);DUVAL B, École Polytechnique Fédérale de Lausanne, Centre de Recherches en Physique des Plasmas, Association Euratom-Confédération Suisse (CH)
Bibliographic Reference: Article: Proceedings of the 19th Symposium on Fusion Technology, Lisboa (PT), September 16-20, 1996
Record Number: 199611541 / Last updated on: 1997-01-27
Category: PUBLICATION
Original language: en
Available languages: en