Studies of plasma potential measurements using an ion-sensistive probe

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2009.

Bibliographic Details
Main Author: Thome, Kathreen Elizabeth
Other Authors: Dennis Whyte.
Format: Thesis
Language:eng
Published: Massachusetts Institute of Technology 2010
Subjects:
Online Access:http://hdl.handle.net/1721.1/54465
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author Thome, Kathreen Elizabeth
author2 Dennis Whyte.
author_facet Dennis Whyte.
Thome, Kathreen Elizabeth
author_sort Thome, Kathreen Elizabeth
collection MIT
description Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2009.
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spelling mit-1721.1/544652019-04-11T03:43:21Z Studies of plasma potential measurements using an ion-sensistive probe Thome, Kathreen Elizabeth Dennis Whyte. Massachusetts Institute of Technology. Dept. of Nuclear Science and Engineering. Massachusetts Institute of Technology. Dept. of Nuclear Science and Engineering. Nuclear Science and Engineering. Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2009. "June 2009." Cataloged from PDF version of thesis. Includes bibliographical references (p. 38). The plasma potential of the scrape-off-layer (SOL) in the tokamak is a key indicator of the erosion rate of the plasma facing component (PFC) material. The Alcator C-Mod SOL plasma potential is currently measured by emissive probes, which is an established potential diagnostic, yet the probes are fragile and short-lived. The ion-sensitive probe (ISP) is a possible sturdier replacement for the emissive probe. Plasma potentials in the Dionisos plasma chamber (DPC) are compared between the two probe types. Preliminary results show the DPC electron density in helicon mode was found to imitate that of the C-Mod plasma SOL. The ISP plasma potential followed the same trend as the emissive probe plasma potential with RF power level, and the two potentials were always within the error of one another. These results indicated the ISP appears to be appropriate for use in C-Mod. by Kathreen Elizabeth Thome. S.B. 2010-04-28T15:36:36Z 2010-04-28T15:36:36Z 2009 Thesis http://hdl.handle.net/1721.1/54465 554702791 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 39 p. application/pdf Massachusetts Institute of Technology
spellingShingle Nuclear Science and Engineering.
Thome, Kathreen Elizabeth
Studies of plasma potential measurements using an ion-sensistive probe
title Studies of plasma potential measurements using an ion-sensistive probe
title_full Studies of plasma potential measurements using an ion-sensistive probe
title_fullStr Studies of plasma potential measurements using an ion-sensistive probe
title_full_unstemmed Studies of plasma potential measurements using an ion-sensistive probe
title_short Studies of plasma potential measurements using an ion-sensistive probe
title_sort studies of plasma potential measurements using an ion sensistive probe
topic Nuclear Science and Engineering.
url http://hdl.handle.net/1721.1/54465
work_keys_str_mv AT thomekathreenelizabeth studiesofplasmapotentialmeasurementsusinganionsensistiveprobe