[Table of Contents]

Plasma and Fusion Research

Volume 2, S1052 (2007)

Regular Articles

Infrared Imaging Video Bolometer with a Double Layer Absorbing Foil
Igor V. MIROSHNIKOV, Artem Y. KOSTRYUKOV and Byron J. PETERSON1)
St. Petersburg State Technical University, 29 Politechnicheskaya Str., St. Petersburg, 195251, Russia.
1)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, 509-5292, Japan
(Received 30 November 2006 / Accepted 11 August 2007 / Published 20 November 2007)

Abstract

The object of the present paper is an infrared video bolometer with a bolometer foil consisting of two layers: the first layer is constructed of radiation absorbing blocks and the second layer is a thermal isolating base. The absorbing blocks made of a material with a high photon attenuation coefficient (gold) were spatially separated from each other while the base should be made of a material having high tensile strength and low thermal conductance (stainless steel). Such a foil has been manufactured in St. Petersburg and calibrated in NIFS using a vacuum test chamber and a laser beam as an incident power source. A finite element method (FEM) code was applied to simulate the thermal response of the foil. Simulation results are in good agreement with the experimental calibration data. The temperature response of the double layer foil is a factor of two higher than that of a single foil IR video bolometer using the same absorber material and thickness.

Keywords

plasma bolometry, infrared imaging bolometer, double layer foil, finite element method simulation

DOI: 10.1585/pfr.2.S1052

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References

  • [1] G.A. Wurden, B.J. Peterson and S. Sudo, Rev. Sci. Instrum. 68, 766 (1997).
  • [2] B.J Peterson, A. Yu. Kostryukov et al., Rev. Sci. Instrum. 74, 2040 (2003).
  • [3] www.matweb.com
  • [4] G.A. Wurden, B.J. Peterson, Imaging Bolometer Development for Large Fusion Devices, 1997 Varenna ITER Diagnostic Workshop, LA-UR-97-3586.
  • [5] G. Wurden, A rad-hard, steady-state, digital imaging bolometer system for ITER, In Diagnostics for Experimental Thermonuclear Fusion Reactors (Plenum Press, NY, 1996) pp.603-606.

This paper may be cited as follows:

Igor V. MIROSHNIKOV, Artem Y. KOSTRYUKOV and Byron J. PETERSON, Plasma Fusion Res. 2, S1052 (2007).