Imaging bolometer

Details Imaging bolometer Imaging bolometer

1997-05-15

1999-01-19

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250330, G01J 500

Patent

active

058616250

ABSTRACT:
Radiation-hard, steady-state imaging bolometer. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas.

REFERENCES:
patent: 3073957 (1963-01-01), Jones
G.A. Wurden, "A Rad-Hard, Steady-State, Digital Imaging Bolometer System For ITER," Diagnostics for Experimental Thermonuclear Fusion Reactors, edited by P.E. Stott et al. (Plenum Press, New York, Mar., 1996), pp. 603-606.

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