This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1016/S0022-3115(02)01421-6 in citations.
On the measurement of molecular particle fluxes in fusion boundary plasmas
On the measurement of molecular particle fluxes in fusion boundary plasmas
This paper describes the determination of the molecular deuterium particle flux Gamma(M) by means of Fulcher-alpha-band spectroscopy. As previous investigations have shown [1], the measurement of the molecular flux is essential for an accurate determination of the total deuterium flux released from...
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Personal Name(s): | Brezinsek, S. |
---|---|
Mertens, Ph. / Pospieszczyk, A. / Samm, U. / Greenland, P. T. / Sergienko, G. / Reiter, D. | |
Contributing Institute: |
Institut für Plasmaphysik; IPP |
Published in: | Journal of nuclear materials, 313-316 (2003) S. 967 - 971 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2003
|
Physical Description: |
967 - 971 |
DOI: |
10.1016/S0022-3115(02)01421-6 |
Document Type: |
Journal Article |
Research Program: |
Kernfusion und Plasmaforschung |
Series Title: |
Journal of Nuclear Materials
313-316 |
Subject (ZB): | |
Publikationsportal JuSER |
This paper describes the determination of the molecular deuterium particle flux Gamma(M) by means of Fulcher-alpha-band spectroscopy. As previous investigations have shown [1], the measurement of the molecular flux is essential for an accurate determination of the total deuterium flux released from carbon plasma-facing components. Experiments have been carried out to ascertain the number of deuterium molecules released from a test limiter in the plasma edge of TEXTOR. For different plasma conditions, a molecular flux up to Gamma(M) similar or equal to 5 x 10(20) s(-1) was measured. Fulcher-alpha-band spectroscopy is introduced as a straightforward method for the determination of Gamma(M). We describe photon flux measurements, a comparison with Eirene calculations, and finally the determination of recycling particle fluxes. The conversion factor D/XB taken from a collisional-radiative model (CRMOL) and relating the number of molecular losses per photon was verified in gas injection experiments. (C) 2003 Elsevier Science B.V. All rights reserved. |