Stabilized operation of the Spallation Neutron Source radio-frequency quadrupole

Sang Ho Kim; Alexander Aleksandrov; Mark Crofford; John Galambos; Paul Gibson; Tom Hardek; Stuart Henderson; Yoon Kang; Kay Kasemir; Charles Peters; David Thompson; Martin Stockli; Derrick Williams

doi:10.1103/PhysRevSTAB.13.070101

Stabilized operation of the Spallation Neutron Source radio-frequency quadrupole

Sang Ho Kim, Alexander Aleksandrov, Mark Crofford, John Galambos, Paul Gibson, Tom Hardek, Stuart Henderson, Yoon Kang, Kay Kasemir, Charles Peters, David Thompson, Martin Stockli, Derrick Williams

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

12 Scopus citations

Abstract

The Spallation Neutron Source (SNS) radio-frequency quadrupole (RFQ) had resonance control instabilities at duty factors higher than approximately 4%. Systematic investigations have been carried out to understand the cause of the instability and to ensure the operational stability of the RFQ. The most critical source of the instability is revealed to be an interaction between hydrogen released by beam bombardments and the RFQ rf field resulting in a discharge, which consumes additional rf power and could cause the RFQ to operate in an unstable region. This paper reports improvement of the SNS RFQ operational stability based on the findings during the SNS operation.

Original language	English
Article number	070101
Journal	Physical Review Special Topics - Accelerators and Beams
Volume	13
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevSTAB.13.070101
State	Published - Jul 2 2010

Access to Document

10.1103/PhysRevSTAB.13.070101

Cite this

Kim, S. H., Aleksandrov, A., Crofford, M., Galambos, J., Gibson, P., Hardek, T., Henderson, S., Kang, Y., Kasemir, K., Peters, C., Thompson, D., Stockli, M., & Williams, D. (2010). Stabilized operation of the Spallation Neutron Source radio-frequency quadrupole. Physical Review Special Topics - Accelerators and Beams, 13(7), Article 070101. https://doi.org/10.1103/PhysRevSTAB.13.070101

@article{380213afb13e48209d0b2cc9d911dee6,

title = "Stabilized operation of the Spallation Neutron Source radio-frequency quadrupole",

abstract = "The Spallation Neutron Source (SNS) radio-frequency quadrupole (RFQ) had resonance control instabilities at duty factors higher than approximately 4%. Systematic investigations have been carried out to understand the cause of the instability and to ensure the operational stability of the RFQ. The most critical source of the instability is revealed to be an interaction between hydrogen released by beam bombardments and the RFQ rf field resulting in a discharge, which consumes additional rf power and could cause the RFQ to operate in an unstable region. This paper reports improvement of the SNS RFQ operational stability based on the findings during the SNS operation.",

author = "Kim, {Sang Ho} and Alexander Aleksandrov and Mark Crofford and John Galambos and Paul Gibson and Tom Hardek and Stuart Henderson and Yoon Kang and Kay Kasemir and Charles Peters and David Thompson and Martin Stockli and Derrick Williams",

year = "2010",

month = jul,

day = "2",

doi = "10.1103/PhysRevSTAB.13.070101",

language = "English",

volume = "13",

journal = "Physical Review Special Topics - Accelerators and Beams",

issn = "1098-4402",

number = "7",

}

Kim, SH , Aleksandrov, A , Crofford, M, Galambos, J, Gibson, P, Hardek, T, Henderson, S, Kang, Y, Kasemir, K, Peters, C, Thompson, D, Stockli, M & Williams, D 2010, 'Stabilized operation of the Spallation Neutron Source radio-frequency quadrupole', Physical Review Special Topics - Accelerators and Beams, vol. 13, no. 7, 070101. https://doi.org/10.1103/PhysRevSTAB.13.070101

TY - JOUR

T1 - Stabilized operation of the Spallation Neutron Source radio-frequency quadrupole

AU - Kim, Sang Ho

AU - Aleksandrov, Alexander

AU - Crofford, Mark

AU - Galambos, John

AU - Gibson, Paul

AU - Hardek, Tom

AU - Henderson, Stuart

AU - Kang, Yoon

AU - Kasemir, Kay

AU - Peters, Charles

AU - Thompson, David

AU - Stockli, Martin

AU - Williams, Derrick

PY - 2010/7/2

Y1 - 2010/7/2

N2 - The Spallation Neutron Source (SNS) radio-frequency quadrupole (RFQ) had resonance control instabilities at duty factors higher than approximately 4%. Systematic investigations have been carried out to understand the cause of the instability and to ensure the operational stability of the RFQ. The most critical source of the instability is revealed to be an interaction between hydrogen released by beam bombardments and the RFQ rf field resulting in a discharge, which consumes additional rf power and could cause the RFQ to operate in an unstable region. This paper reports improvement of the SNS RFQ operational stability based on the findings during the SNS operation.

AB - The Spallation Neutron Source (SNS) radio-frequency quadrupole (RFQ) had resonance control instabilities at duty factors higher than approximately 4%. Systematic investigations have been carried out to understand the cause of the instability and to ensure the operational stability of the RFQ. The most critical source of the instability is revealed to be an interaction between hydrogen released by beam bombardments and the RFQ rf field resulting in a discharge, which consumes additional rf power and could cause the RFQ to operate in an unstable region. This paper reports improvement of the SNS RFQ operational stability based on the findings during the SNS operation.

UR - http://www.scopus.com/inward/record.url?scp=77955102650&partnerID=8YFLogxK

U2 - 10.1103/PhysRevSTAB.13.070101

DO - 10.1103/PhysRevSTAB.13.070101

M3 - Article

AN - SCOPUS:77955102650

SN - 1098-4402

VL - 13

JO - Physical Review Special Topics - Accelerators and Beams

JF - Physical Review Special Topics - Accelerators and Beams

IS - 7

M1 - 070101

ER -

Stabilized operation of the Spallation Neutron Source radio-frequency quadrupole

Abstract

Access to Document

Other files and links

Fingerprint

Cite this