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. 2018 Oct;89(10):10J116.
doi: 10.1063/1.5035365.

Micro-spectrometer for fusion plasma boundary measurements

A M Keesee  1 , M Dugas  2 , S Ellison  2 , L Neal  1 , E E Scime  1 , D S Thompson  1 , J Tersteeg  2 , C J Tucker  3
Affiliations

Micro-spectrometer for fusion plasma boundary measurements

A M Keesee et al. Rev Sci Instrum. 2018 Oct.

Abstract

In situ probes are being developed to make direct, spatially resolved measurements of the ion energy spectra in the edge of tokamak plasmas while being easily replaced and requiring minimal resources. The ion spectrometers will consist of a combined collimator and energy analyzer fabricated from silicon and mated to a detector to yield a form factor of approximately 2.0 cm × 1.5 cm × 0.2 cm. Results of fabrication and testing of the combined collimator and energy analyzer element are presented.

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