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- W117632017 abstract "An imaging bolometer is a new type bolometer which uses a large and thin gold foil which absorbs the incident radiation from the plasma and an IR camera to provide images of the temperature distribution within the foil which corresponds to the plasma radiation. Several theoretically predicted advantages of high temperature operation of an imaging bolometer, such are InSb sensors features, black body radiation intensity, noise equivalent power and others should increase the overall sensitivity. A series of experiments were made to prove this principle. The copper frame which supports the gold foil was heated by 4 vacuum compatible ceramic heaters up to 345 oC. For simulating the local foil heating due to plasma radiation we used He-Ne laser. The laser beam was exposed on the foil only for several seconds for each frame temperature step. Also two thermocouples were used to measure the frame temperature. It was experimentally shown that the resulting sensitivity increases with the foil temperature. The sensitivity was measured as a weighted difference in mean signal intensity within a line crossing a laser beam point on the foil for switched off and switch on laser at different frame temperatures." @default.
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- W117632017 date "2009-01-01" @default.
- W117632017 modified "2023-09-27" @default.
- W117632017 title "Advantages of High Temperature Operation of an Imaging Bolometer" @default.
- W117632017 hasPublicationYear "2009" @default.
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