RF contact development for the ITER ICRH antenna

A. Argouarch; R. Bamber; B. Beaumont; J. M. Bernard; J. M. Delaplanche; F. Durodié; J. C. Hatchressian; P. Lamalle; G. Lombard; K. Nicholls; J. C. Patterlini; M. Shannon; D. Thouvenin; P. Tigwell; R. Volpe; K. Vulliez

doi:10.1063/1.4864566

RF contact development for the ITER ICRH antenna

A. Argouarch, R. Bamber, B. Beaumont, J. M. Bernard, J. M. Delaplanche, F. Durodié, J. C. Hatchressian, P. Lamalle, G. Lombard, K. Nicholls, J. C. Patterlini, M. Shannon, D. Thouvenin, P. Tigwell, R. Volpe, K. Vulliez

Laboratory for Plasma Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In the framework of the Ion Cyclotron (IC) antenna design, ITER Organization requested qualification tests on sliding Radio-Frequency (RF) contacts, to verify that these contacts (quality class 1) are designed appropriately to guarantee a sufficient operational life time. These RF contacts will be integrated into the antenna structure at different locations to facilitate the assembly and decouple the different mechanical parts. This design will in addition lower the thermo-mechanical constraints and allow radial shimming of the antenna front face. As commercial contacts were not suitable for the ITER ICRH antenna operation, substantial efforts have been made on mechanical design of the new RF contact. Two prototypes have been manufactured and delivered to CEA for testing. In parallel a test stand facility (TITAN) has been refurbished to provide a way to test these RF contacts in relevant conditions (2.25kA @ 62.5MHz, vacuum pressure <10^-3Pa, 1000s). This paper reports on main results we get during the commissioning of the test stand facility. Roadmap of the tests is also detailed with RF power tests for long shot duration (1000s) under vacuum and extensive sliding tests in order to assess the reliability of the RF contact for a relevant life time duration (specified to 10 years). A description of the RF contact is also given with the latest results on the manufacturing process (copper and gold plating and brazing, general assembly).

Original language	English
Title of host publication	Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference
Publisher	American Institute of Physics Inc.
Pages	374-377
Number of pages	4
ISBN (Print)	9780735412101
DOIs	https://doi.org/10.1063/1.4864566
Publication status	Published - 2014
Event	20th Topical Conference on Radiofrequency Power in Plasmas - Sorrento, Italy Duration: 25 Jun 2013 → 28 Jun 2013

Publication series

Name	AIP Conference Proceedings
Volume	1580
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	20th Topical Conference on Radiofrequency Power in Plasmas
Country/Territory	Italy
City	Sorrento
Period	25/06/13 → 28/06/13

Keywords

ICRH antenna
RF contact
Test bed facility

Access to Document

10.1063/1.4864566

Cite this

Argouarch, A., Bamber, R., Beaumont, B., Bernard, J. M., Delaplanche, J. M., Durodié, F., Hatchressian, J. C., Lamalle, P., Lombard, G., Nicholls, K., Patterlini, J. C., Shannon, M., Thouvenin, D., Tigwell, P., Volpe, R., & Vulliez, K. (2014). RF contact development for the ITER ICRH antenna. In Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference (pp. 374-377). (AIP Conference Proceedings; Vol. 1580). American Institute of Physics Inc.. https://doi.org/10.1063/1.4864566

@inproceedings{0068e3c63ef2469b87c11191e4c81141,

title = "RF contact development for the ITER ICRH antenna",

abstract = "In the framework of the Ion Cyclotron (IC) antenna design, ITER Organization requested qualification tests on sliding Radio-Frequency (RF) contacts, to verify that these contacts (quality class 1) are designed appropriately to guarantee a sufficient operational life time. These RF contacts will be integrated into the antenna structure at different locations to facilitate the assembly and decouple the different mechanical parts. This design will in addition lower the thermo-mechanical constraints and allow radial shimming of the antenna front face. As commercial contacts were not suitable for the ITER ICRH antenna operation, substantial efforts have been made on mechanical design of the new RF contact. Two prototypes have been manufactured and delivered to CEA for testing. In parallel a test stand facility (TITAN) has been refurbished to provide a way to test these RF contacts in relevant conditions (2.25kA @ 62.5MHz, vacuum pressure <10-3Pa, 1000s). This paper reports on main results we get during the commissioning of the test stand facility. Roadmap of the tests is also detailed with RF power tests for long shot duration (1000s) under vacuum and extensive sliding tests in order to assess the reliability of the RF contact for a relevant life time duration (specified to 10 years). A description of the RF contact is also given with the latest results on the manufacturing process (copper and gold plating and brazing, general assembly).",

keywords = "ICRH antenna, RF contact, Test bed facility",

author = "A. Argouarch and R. Bamber and B. Beaumont and Bernard, {J. M.} and Delaplanche, {J. M.} and F. Durodi{\'e} and Hatchressian, {J. C.} and P. Lamalle and G. Lombard and K. Nicholls and Patterlini, {J. C.} and M. Shannon and D. Thouvenin and P. Tigwell and R. Volpe and K. Vulliez",

year = "2014",

doi = "10.1063/1.4864566",

language = "English",

isbn = "9780735412101",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

pages = "374--377",

booktitle = "Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference",

note = "20th Topical Conference on Radiofrequency Power in Plasmas ; Conference date: 25-06-2013 Through 28-06-2013",

}

Argouarch, A, Bamber, R, Beaumont, B, Bernard, JM, Delaplanche, JM, Durodié, F, Hatchressian, JC, Lamalle, P, Lombard, G, Nicholls, K, Patterlini, JC, Shannon, M, Thouvenin, D, Tigwell, P, Volpe, R & Vulliez, K 2014, RF contact development for the ITER ICRH antenna. in Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference. AIP Conference Proceedings, vol. 1580, American Institute of Physics Inc., pp. 374-377, 20th Topical Conference on Radiofrequency Power in Plasmas, Sorrento, Italy, 25/06/13. https://doi.org/10.1063/1.4864566

RF contact development for the ITER ICRH antenna. / Argouarch, A.; Bamber, R.; Beaumont, B. et al.
Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference. American Institute of Physics Inc., 2014. p. 374-377 (AIP Conference Proceedings; Vol. 1580).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - RF contact development for the ITER ICRH antenna

AU - Argouarch, A.

AU - Bamber, R.

AU - Beaumont, B.

AU - Bernard, J. M.

AU - Delaplanche, J. M.

AU - Durodié, F.

AU - Hatchressian, J. C.

AU - Lamalle, P.

AU - Lombard, G.

AU - Nicholls, K.

AU - Patterlini, J. C.

AU - Shannon, M.

AU - Thouvenin, D.

AU - Tigwell, P.

AU - Volpe, R.

AU - Vulliez, K.

PY - 2014

Y1 - 2014

N2 - In the framework of the Ion Cyclotron (IC) antenna design, ITER Organization requested qualification tests on sliding Radio-Frequency (RF) contacts, to verify that these contacts (quality class 1) are designed appropriately to guarantee a sufficient operational life time. These RF contacts will be integrated into the antenna structure at different locations to facilitate the assembly and decouple the different mechanical parts. This design will in addition lower the thermo-mechanical constraints and allow radial shimming of the antenna front face. As commercial contacts were not suitable for the ITER ICRH antenna operation, substantial efforts have been made on mechanical design of the new RF contact. Two prototypes have been manufactured and delivered to CEA for testing. In parallel a test stand facility (TITAN) has been refurbished to provide a way to test these RF contacts in relevant conditions (2.25kA @ 62.5MHz, vacuum pressure <10-3Pa, 1000s). This paper reports on main results we get during the commissioning of the test stand facility. Roadmap of the tests is also detailed with RF power tests for long shot duration (1000s) under vacuum and extensive sliding tests in order to assess the reliability of the RF contact for a relevant life time duration (specified to 10 years). A description of the RF contact is also given with the latest results on the manufacturing process (copper and gold plating and brazing, general assembly).

AB - In the framework of the Ion Cyclotron (IC) antenna design, ITER Organization requested qualification tests on sliding Radio-Frequency (RF) contacts, to verify that these contacts (quality class 1) are designed appropriately to guarantee a sufficient operational life time. These RF contacts will be integrated into the antenna structure at different locations to facilitate the assembly and decouple the different mechanical parts. This design will in addition lower the thermo-mechanical constraints and allow radial shimming of the antenna front face. As commercial contacts were not suitable for the ITER ICRH antenna operation, substantial efforts have been made on mechanical design of the new RF contact. Two prototypes have been manufactured and delivered to CEA for testing. In parallel a test stand facility (TITAN) has been refurbished to provide a way to test these RF contacts in relevant conditions (2.25kA @ 62.5MHz, vacuum pressure <10-3Pa, 1000s). This paper reports on main results we get during the commissioning of the test stand facility. Roadmap of the tests is also detailed with RF power tests for long shot duration (1000s) under vacuum and extensive sliding tests in order to assess the reliability of the RF contact for a relevant life time duration (specified to 10 years). A description of the RF contact is also given with the latest results on the manufacturing process (copper and gold plating and brazing, general assembly).

KW - ICRH antenna

KW - RF contact

KW - Test bed facility

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U2 - 10.1063/1.4864566

DO - 10.1063/1.4864566

M3 - Conference contribution

AN - SCOPUS:84906337009

SN - 9780735412101

T3 - AIP Conference Proceedings

SP - 374

EP - 377

BT - Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference

PB - American Institute of Physics Inc.

T2 - 20th Topical Conference on Radiofrequency Power in Plasmas

Y2 - 25 June 2013 through 28 June 2013

ER -

RF contact development for the ITER ICRH antenna

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