Analysis of the local re-deposition behavior of carbon at the main walls in TEXTOR by CD4 gas injection and Quartz Microbalance techniques

H. G. Esser; A. Kirschner; D. Borodin; D. Matveev; K. Ohya; O. Schmitz; V. Philipps

doi:10.1016/j.jnucmat.2010.10.091

Analysis of the local re-deposition behavior of carbon at the main walls in TEXTOR by CD₄ gas injection and Quartz Microbalance techniques

H. G. Esser, A. Kirschner, D. Borodin, D. Matveev, K. Ohya, O. Schmitz, V. Philipps

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The local re-deposition of carbon that is chemically eroded from the main wall of fusion devices has been experimentally investigated using a specially designed Quartz Microbalance system. The system has been placed in the far SOL of TEXTOR with the front plate parallel to the field lines and CD₄ has been injected in the vicinity. The total re-deposition efficiency on the front plate was about 1%. Modelling with ERO and the 3D-GAPS code reproduced the measured deposition efficiencies showing values of 2%. The remaining difference can be attributed to chemical re-erosion of the re-deposited C layer by the hydrogen atoms produced from the CD₄ injection. The data show that re-deposition behavior on remote places does not suffer from enhanced erosion, as needed for the plasma wetted area.

Original language	English
Pages (from-to)	S246-S249
Journal	Journal of Nuclear Materials
Volume	415
Issue number	1 SUPPL
DOIs	https://doi.org/10.1016/j.jnucmat.2010.10.091
State	Published - 1 Aug 2011
Externally published	Yes

Funding

Funders	Funder number
Japan Society for the Promotion of Science	19055005

Access to Document

10.1016/j.jnucmat.2010.10.091

Cite this

@article{6c863592c36a495c9b3390de275934ad,

title = "Analysis of the local re-deposition behavior of carbon at the main walls in TEXTOR by CD4 gas injection and Quartz Microbalance techniques",

abstract = "The local re-deposition of carbon that is chemically eroded from the main wall of fusion devices has been experimentally investigated using a specially designed Quartz Microbalance system. The system has been placed in the far SOL of TEXTOR with the front plate parallel to the field lines and CD4 has been injected in the vicinity. The total re-deposition efficiency on the front plate was about 1%. Modelling with ERO and the 3D-GAPS code reproduced the measured deposition efficiencies showing values of 2%. The remaining difference can be attributed to chemical re-erosion of the re-deposited C layer by the hydrogen atoms produced from the CD4 injection. The data show that re-deposition behavior on remote places does not suffer from enhanced erosion, as needed for the plasma wetted area.",

author = "Esser, {H. G.} and A. Kirschner and D. Borodin and D. Matveev and K. Ohya and O. Schmitz and V. Philipps",

year = "2011",

month = aug,

day = "1",

doi = "10.1016/j.jnucmat.2010.10.091",

language = "אנגלית",

volume = "415",

pages = "S246--S249",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

number = "1 SUPPL",

}

TY - JOUR

T1 - Analysis of the local re-deposition behavior of carbon at the main walls in TEXTOR by CD4 gas injection and Quartz Microbalance techniques

AU - Esser, H. G.

AU - Kirschner, A.

AU - Borodin, D.

AU - Matveev, D.

AU - Ohya, K.

AU - Schmitz, O.

AU - Philipps, V.

PY - 2011/8/1

Y1 - 2011/8/1

N2 - The local re-deposition of carbon that is chemically eroded from the main wall of fusion devices has been experimentally investigated using a specially designed Quartz Microbalance system. The system has been placed in the far SOL of TEXTOR with the front plate parallel to the field lines and CD4 has been injected in the vicinity. The total re-deposition efficiency on the front plate was about 1%. Modelling with ERO and the 3D-GAPS code reproduced the measured deposition efficiencies showing values of 2%. The remaining difference can be attributed to chemical re-erosion of the re-deposited C layer by the hydrogen atoms produced from the CD4 injection. The data show that re-deposition behavior on remote places does not suffer from enhanced erosion, as needed for the plasma wetted area.

AB - The local re-deposition of carbon that is chemically eroded from the main wall of fusion devices has been experimentally investigated using a specially designed Quartz Microbalance system. The system has been placed in the far SOL of TEXTOR with the front plate parallel to the field lines and CD4 has been injected in the vicinity. The total re-deposition efficiency on the front plate was about 1%. Modelling with ERO and the 3D-GAPS code reproduced the measured deposition efficiencies showing values of 2%. The remaining difference can be attributed to chemical re-erosion of the re-deposited C layer by the hydrogen atoms produced from the CD4 injection. The data show that re-deposition behavior on remote places does not suffer from enhanced erosion, as needed for the plasma wetted area.

UR - http://www.scopus.com/inward/record.url?scp=80054839595&partnerID=8YFLogxK

U2 - 10.1016/j.jnucmat.2010.10.091

DO - 10.1016/j.jnucmat.2010.10.091

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:80054839595

SN - 0022-3115

VL - 415

SP - S246-S249

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1 SUPPL

ER -

Analysis of the local re-deposition behavior of carbon at the main walls in TEXTOR by CD₄ gas injection and Quartz Microbalance techniques

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this