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Testing of a Prototype Lost α-Particle Diagnostic Utilizing an Imaging Bolometer

Evgeny A. DRAPIKO, Byron J. PETERSON, Andrey G. ALEKSEYEV¹⁾, Mamiko SASAO²⁾ and Atsushi OKAMOTO²⁾

National Institute for Fusion Science,322-6 Oroshi-cho, Toki 509-5292, Japan

1)

TRINITI OFTR, Troitsk, Moscow Region 142190, Russia

2)

Tohoku University, Sendai 980-8579, Japan

(Received 14 December 2009 / Accepted 2 April 2010 / Published 10 December 2010)

Abstract

A multi-channel version of the multi foil thermal detector (MFTD) prototype has been developed and tested at the FNL ion accelerator in Tohoku University, which uses an imaging bolometer as a thermal sensor and 2-dimensional set of the foils with the different thicknesses as an energy discriminator for alphas. A Phoenix IR camera from FLIR Systems had been used for monitoring the temperature profile variations under the ion beam irradiation. The results obtained showed that the tested foils are applicable for the MFTD design.

Copyright (c) 2010 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

ITER, diagnostic, lost alpha, infrared imaging bolometer

DOI: 10.1585/pfr.5.S2096

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References

• [1] A.G. Alekseyev et al., 30th EPS Conf. on Controlled Fusion & Plasma Phys., July 7-11, 2003, St.Petersburg, Russia, ECA 27A, P1.171 (2003).
• [2] B.J. Peterson et al., Rev. Sci. Instrum. 79, 10E301 (2008).
• [3] E.A. Drapiko et al., J. Plasma Fusion Res. SERIES 8, 659 (2009).

This paper may be cited as follows:

Evgeny A. DRAPIKO, Byron J. PETERSON, Andrey G. ALEKSEYEV, Mamiko SASAO and Atsushi OKAMOTO, Plasma Fusion Res. 5, S2096 (2010).