Upgrade of the neon soft X-ray spectrometer for Alcator C-Mod

Author(s)
Podpaly, Yuri Anatoly
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Massachusetts Institute of Technology. Dept. of Nuclear Science and Engineering.
Advisor
Ian Hutchinson.
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Abstract
In order to study plasma rotation, temperature, and impurity density, a Neon Soft X-ray Spectrometer (NeSoXs) was installed on the Alcator C-Mod tokamak. This spectrometer used a spherically bent mica crystal as the reflective element in order to separate the spectral and spatial information on the receiving CCD. The original NeSoXs was found to have several problems including vacuum quality, camera readout rate, crystal positioning, chamber size, and chamber positioning. In order to remedy these problems, a new system was designed and has been constructed. This system has achieved much better vacuum pumping times (-100 times faster) and is in the process of being installed on the Alcator C-Mod vessel.
Description
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2007.
 
"June 2007."
 
Includes bibliographical references (p. 40-41).
 
Date issued
2007
URI
http://hdl.handle.net/1721.1/41680
Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Publisher
Massachusetts Institute of Technology
Keywords
Nuclear Science and Engineering.
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