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(100)

Dark current spikes as an indicator of mobile dislocation dynamics under intense dc electric fields / Engelberg, Eliyahu Zvi (Hebrew U.) ; Paszkiewicz, Jan (CERN) ; Peacock, Ruth (CERN) ; Lachmann, Sagy (Hebrew U.) ; Ashkenazy, Yinon (Hebrew U.) ; Wuensch, Walter (CERN)
Breakdown of metals subject to intense electric fields is a long-standing limiting factor in high-voltage applications. The mechanism leading to breakdown nucleation is not completely understood. [...]
2020 - 9 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 123501 Fulltext: PDF;

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(91)

Identifying critical plastic activity in electrodes under intense electric fields and the link to breakdown nucleation / Ashkenazy, Yinon (Hebrew U.) ; Popov, Inna (Hebrew U.) ; Yashar, Ayelet (Hebrew U.) ; Gad, Raanan (Hebrew U.) ; Profatilova, Iaroslava (CERN) ; Paszkiewicz, Jan (CERN) ; Peacock, Ruth (CERN) ; Wuensch, Walter (CERN)
The hypothesis that arc nucleation is related to plastic activity due to collective motion of dislocation in the cathode is examined via experiments and theoretical efforts over the last few years. Current theoretical and experimental observations indicating specific dislocation activity related to the applied high field are reviewed. [...]
2021 - 2 p. - Published in : 10.1109/ISDEIV46977.2021.9586897
In : 29th International Symposium on Discharges and Electrical Insulation in Vacuum, Online, 26 - 30 Sep 2021, pp.1-2

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(66)

Statistical Analysis of Field-Emission Currents / Lachmann, Sagy (Hebrew U.) ; Jacewicz, Marek (Uppsala U.) ; Profatilova, Iaroslava (CERN) ; Paszkiewicz, Jan (CERN) ; Wuensch, Walter (CERN) ; Ashkenazy, Yinon (Hebrew U.)
The current due to cold tunneling of electrons from a metallic surface exposed to high electric fields, regularly named “dark current,” is commonly described in modern literature using an analytical approximate solution provided by Murphy and Good [Phys. Rev. [...]
2021 - 11 p. - Published in : Phys. Rev. Applied 16 (2021) 024007 Fulltext: PDF;

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(49)

Studies of Breakdown and Pre-Breakdown Phenomena in High Gradient Accelerating Structures / Paszkiewicz, Jan
Vacuum breakdown is a complex process and an important limiting factor of the performance of normal-conducting high-gradient particle accelerators, and can result in loss of luminosity in particle collider applications, as well as damage to accelerating structures [...]
CERN-THESIS-2020-260 - 237 p.

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(38)

Experimental Investigation of Vacuum Breakdown Triggering Mechanisms in a DC Electrode System / Peacock, Ruth
This thesis describes the testing and results of the two pulsed DC large electrode systems at CERN, as part of a collaborations with the Compact Linear Collider (CLIC) and Linear Accelerator 4 (Linac 4) projects [...]
CERN-THESIS-2023-160 - Lancaster : Lancaster University, 2023-09-20. - 324 p.

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(27)

Vacuum electrical breakdown conditioning study in a parallel plate electrode pulsed DC system / Korsbäck, Anders (Helsinki Inst. of Phys.) ; Morales, Laura Mercadé (Valencia U.) ; Profatilova, Iaroslava (Sumy, Inst. Appl. Phys.) ; Djurabekova, Flyura (Helsinki Inst. of Phys.) ; Rodriguez Castro, Enrique (CERN) ; Wuensch, Walter (CERN) ; Ahlgren, Tommy (Helsinki U.) ; Calatroni, Sergio (CERN)
Conditioning of a metal structure in a high-voltage system is the progressive development of resistance to vacuum arcing over the operational life of the system. This is, for instance, seen during the initial operation of radio frequency (rf) cavities in particle accelerators. [...]
arXiv:1905.03996.- 2020-03-23 - 13 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 033102 Fulltext: PDF; Fulltext from Publisher: 66bd5bb19bab82f5bf87f53d0397d3b0 - PDF; 10.1103_PhysRevAccelBeams.23.033102 - PDF; Fulltext from publisher: PDF;

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(24)

Pre-breakdown currents and microdischarges across large gaps in clean vacuum / Rohrbach, F
CERN-PRE-6529. - 1966. - 15 p.

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(22)

Limiting High Frequency Longitudinal Impedance of an Inductive Pick-Up by a Thin Metallic Layer / Gasior, M (CERN)
An Inductive Pick-Up (IPU) [1] was developed to measure the position and current of an electron beam of the Third CLIC Test Facility (CTF3) Drive Beam Linac [2]. [...]
CERN-AB-2004-090 ; CLIC-Note-609. - 2004 - 4.
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(21)

Investigation of Vacuum Breakdown in Pulsed DC Systems / Kaufmann, Helena T C (Madeira U. ; Lisbon, IST) ; Profatilova, Iaroslava (CERN) ; Popov, Inna (Hebrew U.) ; Wuensch, Walter (CERN) ; Benilov, Mikhail S (Madeira U. ; Lisbon, IST)
Vacuum breakdown in the pulsed DC experiment at CERN was investigated by means of electrical measurements, SEM and STEM imaging of the surface and cross sections of the copper electrodes, and numerical modeling. The breakdown sites comprise one or more craters. [...]
2021 - 4 p. - Published in : 10.1109/ISDEIV46977.2021.9587237
In : 29th International Symposium on Discharges and Electrical Insulation in Vacuum, Online, 26 - 30 Sep 2021, pp.19-22

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(20)

dc breakdown conditioning and breakdown rate of metals and metallic alloys under ultrahigh vacuum / Descoeudres, A (CERN) ; Ramsvik, T (CERN) ; Calatroni, S (CERN) ; Taborelli, M (CERN) ; Wuensch, W (CERN)
RF accelerating structures of the Compact Linear Collider (CLIC) require a material capable of sustaining high electric field with a low breakdown rate and low induced damage. Because of the similarity of many aspects of DC and RF breakdown, a DC breakdown study is underway at CERN in order to test candidate materials and surface preparations, and have a better understanding of the breakdown mechanism under ultra-high vacuum in a simple setup. [...]
CERN-OPEN-2010-004; CLIC-Note-780.- Geneva : CERN, 2009 - 12 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 12 (2009) 032001 APS Published version, local copy: PDF; Preprint: PDF;

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