Molecular deuterium sources in the outer divertor of JET

被引：16

作者：

Pospieszczyk, A

Brezinsek, S

Sergienko, G

Greenland, PT

Huber, A

Meigs, A

Mertens, P

Samm, U

Stamp, M

Wiesen, S

机构：

[1] Forschungszentrum Julich, EURATOM Assoc, Inst Plasma Phys, D-52425 Julich, Germany

[2] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[3] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Opt Sect, London SW7 2BZ, England

来源：

JOURNAL OF NUCLEAR MATERIALS | 2005年 / 337卷 / 1-3期

关键词：

hydrogen; JET; molecular effects; recycling; spectroscopy; D-2; MOLECULES; H-2;

D O I：

10.1016/j.jnucmat.2004.09.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

At JET the properties of deuterium molecules and their contribution to the total deuteron flux in the outer divertor for the horizontal configuration in L- and H-mode conditions have been determined. For this purpose the outer divertor was observed with several high resolution spectrometers and lines of sight directed vertically with spatial resolution from the outer vertical target plate to the centre of the MK IIB GB/SRP divertor. The rovibrational population of the Fulcher bands of the deuterium molecules could both be measured for the first five diagonal vibrational transitions. A collisional-radiative model for deuterium molecules was used to convert the measured photon fluxes into local molecular D-2-fluxes. With more than 70% of the total proton flux originating from molecular sources molecules make up a significant contribution to the fuelling in the divertor. This was found to be in agreement with the 2d-fluid/neutral particle code EDGE2D/NIMBUS. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：500 / 504

页数：5

共 10 条

[1] On the measurement of molecular particle fluxes in fusion boundary plasmas
Brezinsek, S
Greenland, PT
Mertens, P
Pospieszczyk, A
Reiter, D
Samm, U
Schweer, B
Sergienko, G
[J]. JOURNAL OF NUCLEAR MATERIALS, 2003, 313 : 967 - 971
[2] Formation of HD molecules in the boundary layer of TEXTOR
Brezinsek, S
Greenland, PT
Mertens, P
Pospieszczyk, A
Samm, U
Schweer, B
Sergienko, G
[J]. PHYSICA SCRIPTA, 2003, T103 : 63 - 67
[3] BREZINSEK S, 2002, JUL3962
[4] Spectroscopic diagnostics of the vibrational population in the ground state of H2 and D2 molecules
Fantz, U
Heger, B
[J]. PLASMA PHYSICS AND CONTROLLED FUSION, 1998, 40 (12) : 2023 - 2032
[5] Optical emission measurements of H2 and D2 molecules in the divertor region of ASDEX Upgrade
Fantz, U
Behringer, K
Gafert, J
Coster, D
[J]. JOURNAL OF NUCLEAR MATERIALS, 1999, 266 : 490 - 494
[6] GUIRLET R, 2001, 28 EPS C CONTR FUS A, V25, P201
[7] Hydrogen release from plasma-facing components into fusion plasmas - recent results from a spectroscopic approach
Mertens, P
Brezinsek, S
Greenland, PT
Hey, JD
Pospieszczyk, A
Reiter, D
Samm, U
Schweer, B
Sergienko, G
Vietzke, E
[J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2001, 43 : A349 - A373
[8] In situ measurement and modeling of hydrogen recycling and transport processes -: the role of molecules
Pospieszczyk, A
Mertens, P
Sergienko, G
Huber, A
Philipps, V
Reiter, D
Rusbüldt, D
Schweer, B
Vietzke, E
Greenland, PT
[J]. JOURNAL OF NUCLEAR MATERIALS, 1999, 266 : 138 - 145
[9] POSPIESZCZYK G, 1997, 24 EPS C CONTR FUS P, V4, P1733
[10] MODELS AND NUMERICS IN THE MULTI-FLUID 2-D EDGE PLASMA CODE EDGE2D/U
SIMONINI, R
CORRIGAN, G
RADFORD, G
SPENCE, J
TARONI, A
[J]. CONTRIBUTIONS TO PLASMA PHYSICS, 1994, 34 (2-3) : 368 - 373

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