Operational Experience of a Prototype LHC Injection Kicker Magnet with a low SEY coating and Redistributed Power Deposition

被引：1

作者：

Barnes, M. J. ^{[1
]}

Bracco, C. ^{[1
]}

Bregliozzi, G. ^{[1
]}

Chmielinska, A. ^{[1
]}

Ducimetiere, L. ^{[1
]}

Goddard, B. ^{[1
]}

Iadarola, G. ^{[1
]}

Kramer, T. ^{[1
]}

Cid, L. Vega ^{[1
]}

Vlachodimitropoulos, V. ^{[1
]}

Weterings, W. ^{[1
]}

机构：

[1] CERN, Geneva, Switzerland

来源：

10TH INTERNATIONAL PARTICLE ACCELERATOR CONFERENCE | 2019年 / 1350卷

关键词：

D O I：

10.1088/1742-6596/1350/1/012145

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In the event that it is necessary to exchange an LHC injection kicker magnet (MKI), the newly installed kicker magnet would limit operation for a few hundred hours due to dynamic vacuum. A surface coating with a low secondary electron yield, applied to the inner surface of an alumina tube to reduce dynamic vacuum activity without increasing the probability of Unidentified Falling Objects, and which is compatible with the high voltage environment, was included in an upgraded MKI installed in the LHC during the 2017-18 Year End Technical Stop. In addition, this MKI included an upgrade to relocate a significant portion of beam induced power from the yoke to a damping element: this element is not at pulsed high voltage. The effectiveness of the upgrades has been demonstrated during LHC operation, hence a future version will include water cooling of the damping element. This paper reviews dynamic vacuum around the MKIs and summarizes operational experience of the upgraded MKI.

引用

页数：6

共 3 条

[1] Operational experience of a low beam coupling impedance injection kicker magnet for the CERN SPS ring
Barnes, M. J.
Bartmann, W.
Diaz, M.
Ducimetiere, L.
Favia, G.
Feliciano, L.
Kramer, T.
Namora, V
Standen, D.
Stadlbauer, T.
Trubacova, P.
Velotti, F.
Zannini, C.
IPAC23 PROCEEDINGS, 2024, 2687
[2] Low power measurements on an AGS injection kicker magnet
Barnes, M. J.
Wait, G. D.
2007 IEEE PARTICLE ACCELERATOR CONFERENCE, VOLS 1-11, 2007, : 3944 - 3946
[3] Operational experience of the upgraded LHC injection kicker magnets during Run 2 and future plans
Barnes, M. J.
Adraktas, A.
Bregliozzi, G.
Goddard, B.
Ducimetiere, L.
Salvant, B.
Sestak, J.
Cid, L. Vega
Weterings, W.
Vallgren, C. Yin
8TH INTERNATIONAL PARTICLE ACCELERATOR CONFERENCE (IPAC 2017), 2017, 874

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