Glen A. Wurden and  Ivo Furno,  

 MS-E526, Los Alamos, New Mexico · 87545 · USA

Los Alamos has an experimental collaboration with the Alcator C-Mod tokamak at MIT. We have provide a variety of diagnostics, including two fast camera systems, a neutral particle Time of Flight analyzer, and have installed a custom infrared  periscope to view the inner armor wall and lower divertor using a digital infrared video camera. At this time (3/2004), we are preparing an infrared spectroscopy system, using a 256 element IR detector array and a 0.3 m McPherson 218 spectrometer, to view into the tokamak divertor region, using the existing IR periscope. We will be studying the molecular features in the 0.8-2.5 micron spectral band.

R. J. Maqueda, G. A. Wurden, J. L. Terry, J. Gaffke,  "Digital-image capture system for the IR camera used in Alcator C-Mod"". Rev. Sci. Instr., (72)1, pg 927, (2001). Proceeedings of the 13th High Temperature Plasma Diagnostics Conference, Tucson, AZ, June 19, 2000. Keywords: Infrared imaging, 12-bit digital, Amber Radiance 1 camera, IR periscope, plasma diagnostics.

        A. J. Allen, J. L. Terry, D. Garnier, J. A. Stillerman, and G. A. Wurden. The high resolution video capture system on the alcator C-Mod tokamk.

        Review of Scientific Instruments, 68, No. 1, pg. 947-950 (1997).

        Keywords: tokamak, Alcator C-Mod, video capture, frame grabber, fast fluctuations, plasma radiation.

A collection of images of the infrared hardware layout, mounted on the top of the Alcator C-Mod concrete igloo, is available as the IR Installation at Alcator C-Mod.

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