The first operation of 56 MHz srf cavity in RHIC

Q. Wu; S. Belomestnykh; I. Ben-Zvi; M. Blaskiewicz; L. Desanto; D. Goldberg; M. Harvey; T. Hayes; G. McIntyre; K. Mernick; P. Orfin; S. Seberg; F. Severino; K. Smith; R. Than; A. Zaltsman

The first operation of 56 MHz srf cavity in RHIC

Q. Wu
, S. Belomestnykh
, I. Ben-Zvi
, M. Blaskiewicz
, L. Desanto
, D. Goldberg
, M. Harvey
, T. Hayes
, G. McIntyre
, K. Mernick
, P. Orfin
, S. Seberg
, F. Severino
, K. Smith
, R. Than
, A. Zaltsman

Physics and Astronomy

Brookhaven National Laboratory

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

Abstract

A 56 MHz superconducting RF cavity has been designed, fabricated and installed in the Relativistic Heavy Ion Collider (RHIC). The cavity operates at 4.4 K with a "quiet helium source" to isolate the cavity from environmental acoustic noise. The cavity is a beam driven quarter wave resonator. It is detuned and damped during injection and acceleration cycles and is brought to operation only at store energy. For a first test operation, the cavity voltage was stabilized at 300 kV with full beam current. Within both Au + Au and asymmetrical Au + He3 collisions, luminosity improvement was detected from direct measurement, and the hourglass effect was reduced. One higher order mode (HOM) coupler was installed on the cavity. We report in this paper on our measurement of a broadband HOM spectrum excited by the Au beam.

Original language	English
Title of host publication	6th International Particle Accelerator Conference, IPAC 2015
Publisher	Joint Accelerator Conferences Website (JACoW)
Pages	3767-3769
Number of pages	3
ISBN (Electronic)	9783954501687
State	Published - 2015
Event	6th International Particle Accelerator Conference, IPAC 2015 - Richmond, United States Duration: May 3 2015 → May 8 2015

Publication series

Name	6th International Particle Accelerator Conference, IPAC 2015

Conference

Conference	6th International Particle Accelerator Conference, IPAC 2015
Country/Territory	United States
City	Richmond
Period	05/3/15 → 05/8/15

Cite this

Wu, Q., Belomestnykh, S., Ben-Zvi, I., Blaskiewicz, M., Desanto, L., Goldberg, D., Harvey, M., Hayes, T., McIntyre, G., Mernick, K., Orfin, P., Seberg, S., Severino, F., Smith, K., Than, R., & Zaltsman, A. (2015). The first operation of 56 MHz srf cavity in RHIC. In 6th International Particle Accelerator Conference, IPAC 2015 (pp. 3767-3769). (6th International Particle Accelerator Conference, IPAC 2015). Joint Accelerator Conferences Website (JACoW).

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title = "The first operation of 56 MHz srf cavity in RHIC",

abstract = "A 56 MHz superconducting RF cavity has been designed, fabricated and installed in the Relativistic Heavy Ion Collider (RHIC). The cavity operates at 4.4 K with a {"}quiet helium source{"} to isolate the cavity from environmental acoustic noise. The cavity is a beam driven quarter wave resonator. It is detuned and damped during injection and acceleration cycles and is brought to operation only at store energy. For a first test operation, the cavity voltage was stabilized at 300 kV with full beam current. Within both Au + Au and asymmetrical Au + He3 collisions, luminosity improvement was detected from direct measurement, and the hourglass effect was reduced. One higher order mode (HOM) coupler was installed on the cavity. We report in this paper on our measurement of a broadband HOM spectrum excited by the Au beam.",

author = "Q. Wu and S. Belomestnykh and I. Ben-Zvi and M. Blaskiewicz and L. Desanto and D. Goldberg and M. Harvey and T. Hayes and G. McIntyre and K. Mernick and P. Orfin and S. Seberg and F. Severino and K. Smith and R. Than and A. Zaltsman",

note = "Publisher Copyright: Copyright {\textcopyright} 2015 CC-BY-3.0 and by the respective authors.; 6th International Particle Accelerator Conference, IPAC 2015 ; Conference date: 03-05-2015 Through 08-05-2015",

year = "2015",

language = "English",

series = "6th International Particle Accelerator Conference, IPAC 2015",

publisher = "Joint Accelerator Conferences Website (JACoW)",

pages = "3767--3769",

booktitle = "6th International Particle Accelerator Conference, IPAC 2015",

}

Wu, Q, Belomestnykh, S, Ben-Zvi, I, Blaskiewicz, M, Desanto, L, Goldberg, D, Harvey, M, Hayes, T, McIntyre, G, Mernick, K, Orfin, P, Seberg, S, Severino, F, Smith, K, Than, R & Zaltsman, A 2015, The first operation of 56 MHz srf cavity in RHIC. in 6th International Particle Accelerator Conference, IPAC 2015. 6th International Particle Accelerator Conference, IPAC 2015, Joint Accelerator Conferences Website (JACoW), pp. 3767-3769, 6th International Particle Accelerator Conference, IPAC 2015, Richmond, United States, 05/3/15.

The first operation of 56 MHz srf cavity in RHIC. / Wu, Q.; Belomestnykh, S.; Ben-Zvi, I. et al.
6th International Particle Accelerator Conference, IPAC 2015. Joint Accelerator Conferences Website (JACoW), 2015. p. 3767-3769 (6th International Particle Accelerator Conference, IPAC 2015).

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

TY - GEN

T1 - The first operation of 56 MHz srf cavity in RHIC

AU - Wu, Q.

AU - Belomestnykh, S.

AU - Ben-Zvi, I.

AU - Blaskiewicz, M.

AU - Desanto, L.

AU - Goldberg, D.

AU - Harvey, M.

AU - Hayes, T.

AU - McIntyre, G.

AU - Mernick, K.

AU - Orfin, P.

AU - Seberg, S.

AU - Severino, F.

AU - Smith, K.

AU - Than, R.

AU - Zaltsman, A.

PY - 2015

Y1 - 2015

N2 - A 56 MHz superconducting RF cavity has been designed, fabricated and installed in the Relativistic Heavy Ion Collider (RHIC). The cavity operates at 4.4 K with a "quiet helium source" to isolate the cavity from environmental acoustic noise. The cavity is a beam driven quarter wave resonator. It is detuned and damped during injection and acceleration cycles and is brought to operation only at store energy. For a first test operation, the cavity voltage was stabilized at 300 kV with full beam current. Within both Au + Au and asymmetrical Au + He3 collisions, luminosity improvement was detected from direct measurement, and the hourglass effect was reduced. One higher order mode (HOM) coupler was installed on the cavity. We report in this paper on our measurement of a broadband HOM spectrum excited by the Au beam.

AB - A 56 MHz superconducting RF cavity has been designed, fabricated and installed in the Relativistic Heavy Ion Collider (RHIC). The cavity operates at 4.4 K with a "quiet helium source" to isolate the cavity from environmental acoustic noise. The cavity is a beam driven quarter wave resonator. It is detuned and damped during injection and acceleration cycles and is brought to operation only at store energy. For a first test operation, the cavity voltage was stabilized at 300 kV with full beam current. Within both Au + Au and asymmetrical Au + He3 collisions, luminosity improvement was detected from direct measurement, and the hourglass effect was reduced. One higher order mode (HOM) coupler was installed on the cavity. We report in this paper on our measurement of a broadband HOM spectrum excited by the Au beam.

UR - https://www.scopus.com/pages/publications/84994589230

M3 - Conference contribution

AN - SCOPUS:84994589230

T3 - 6th International Particle Accelerator Conference, IPAC 2015

SP - 3767

EP - 3769

BT - 6th International Particle Accelerator Conference, IPAC 2015

PB - Joint Accelerator Conferences Website (JACoW)

T2 - 6th International Particle Accelerator Conference, IPAC 2015

Y2 - 3 May 2015 through 8 May 2015

ER -

The first operation of 56 MHz srf cavity in RHIC

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