Two-wavelength imaging pyrometer for ultrafast temperature monitoring of nanocrystalline diamond foils

Abdurahim Rakhman Oguz

doi:10.1117/12.2677751

6 October 2023 Two-wavelength imaging pyrometer for ultrafast temperature monitoring of nanocrystalline diamond foils

Abdurahim Rakhman Oguz

Proceedings Volume 12686, Infrared Remote Sensing and Instrumentation XXXI; 126860F (2023) https://doi.org/10.1117/12.2677751
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

A two-color imaging pyrometer was developed to investigate two-dimensional thermal behavior of micrometer thick nanocrystalline diamond foils with microsecond temporal resolution. The optical system composed of an on-axis Cassegrain telescope, dichroic and bandpass filters, two high-sensitivity SWIR cameras combined with two PIN photodiodes and an image sampling pinhole mirror. The imaging pyrometer is calibrated with a high temperature blackbody source and compared to a commercially available infrared camera. The design has achieved high imaging quality and the system measures absolute temperatures of diamond foils with surface roughness and emissivity variation under high intensity hydrogen ion beams up to 1.6 MW average power. The results obtained shows that the two-color imaging pyrometer developed can measure the temperatures with accuracy better than 1.0 % over the range of 1000 K to 2000 K.

Conference Presentation

Citation Download Citation

Abdurahim Rakhman Oguz "Two-wavelength imaging pyrometer for ultrafast temperature monitoring of nanocrystalline diamond foils", Proc. SPIE 12686, Infrared Remote Sensing and Instrumentation XXXI, 126860F (6 October 2023); https://doi.org/10.1117/12.2677751

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KEYWORDS

Ultrafast imaging

Diamond

Pyrometry

Imaging systems

Hydrogen

Ion beams

Temperature metrology

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