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Title: Beam commissioning program of the 704 MHZ SRF gun

Authors:
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Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL)
Sponsoring Org.:
USDOE SC OFFICE OF NUCLEAR PHYSICS
OSTI Identifier:
1169562
Report Number(s):
BNL-107362-2015-CP
R&D Project: KBCH139; KB0202011
DOE Contract Number:
DE-SC00112704
Resource Type:
Conference
Resource Relation:
Conference: LINAC 14 27th Linear Accelerator Conference; Geneva, Switzerland; 20140831 through 20140905
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Xu W., Altinbas, Z., Belomestnykh, S., Ben-Zvi, I., Deonarine, S., DeSanto, L., Gassner, D., Gupta, R. C., Hahn, H., Hammons, L., Ho, C., Jamilkowski, J., Kankiya, P., Kayran, D., Kellerman, R., Laloudakis, N., Lambiase, R., Liaw, C., Litvinenko, V., Mahler, G., Masi, L., McIntyre, G., Miller, T., Phillips, D., Ptitsyn, V., Seda, T., Sheehy, B., Smith, K., Rao, T., Steszyn, A., Tallerico, T., Than, R., Tuozzolo, J., Wang, E., Weiss, D., Wilinski, M., and Zaltsman, A. Beam commissioning program of the 704 MHZ SRF gun. United States: N. p., 2014. Web.
Xu W., Altinbas, Z., Belomestnykh, S., Ben-Zvi, I., Deonarine, S., DeSanto, L., Gassner, D., Gupta, R. C., Hahn, H., Hammons, L., Ho, C., Jamilkowski, J., Kankiya, P., Kayran, D., Kellerman, R., Laloudakis, N., Lambiase, R., Liaw, C., Litvinenko, V., Mahler, G., Masi, L., McIntyre, G., Miller, T., Phillips, D., Ptitsyn, V., Seda, T., Sheehy, B., Smith, K., Rao, T., Steszyn, A., Tallerico, T., Than, R., Tuozzolo, J., Wang, E., Weiss, D., Wilinski, M., & Zaltsman, A. Beam commissioning program of the 704 MHZ SRF gun. United States.
Xu W., Altinbas, Z., Belomestnykh, S., Ben-Zvi, I., Deonarine, S., DeSanto, L., Gassner, D., Gupta, R. C., Hahn, H., Hammons, L., Ho, C., Jamilkowski, J., Kankiya, P., Kayran, D., Kellerman, R., Laloudakis, N., Lambiase, R., Liaw, C., Litvinenko, V., Mahler, G., Masi, L., McIntyre, G., Miller, T., Phillips, D., Ptitsyn, V., Seda, T., Sheehy, B., Smith, K., Rao, T., Steszyn, A., Tallerico, T., Than, R., Tuozzolo, J., Wang, E., Weiss, D., Wilinski, M., and Zaltsman, A. Sun . "Beam commissioning program of the 704 MHZ SRF gun". United States. doi:. https://www.osti.gov/servlets/purl/1169562.
@article{osti_1169562,
title = {Beam commissioning program of the 704 MHZ SRF gun},
author = {Xu W. and Altinbas, Z. and Belomestnykh, S. and Ben-Zvi, I. and Deonarine, S. and DeSanto, L. and Gassner, D. and Gupta, R. C. and Hahn, H. and Hammons, L. and Ho, C. and Jamilkowski, J. and Kankiya, P. and Kayran, D. and Kellerman, R. and Laloudakis, N. and Lambiase, R. and Liaw, C. and Litvinenko, V. and Mahler, G. and Masi, L. and McIntyre, G. and Miller, T. and Phillips, D. and Ptitsyn, V. and Seda, T. and Sheehy, B. and Smith, K. and Rao, T. and Steszyn, A. and Tallerico, T. and Than, R. and Tuozzolo, J. and Wang, E. and Weiss, D. and Wilinski, M. and Zaltsman, A.},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Aug 31 00:00:00 EDT 2014},
month = {Sun Aug 31 00:00:00 EDT 2014}
}

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  • The Coherent electron Cooling Proof-of-Principle (CeC PoP) experiment at BNL includes a short electron linac. During Phase 1, a 112 MHz superconducting RF photo-emission gun and two 500 MHz normal conducting bunching cavities were installed and are under commissioning. The paper describes the Phase1 linac layout and presents commissioning results for the cavities and associated RF, cryogenic and other sub-systems
  • The BNL 704MHz SRF gun has a grooved choke joint to support the photo-cathode. Due to the distortion of grooves at the choke joint during the BCP for the choke joint, several multipacting barriers showed up when it was tested with Nb cathode stalk at JLab. We built a setup to use the spare large grain SRF cavity to test and condition the multipacting at BNL with various power sources up to 50kW. The test is carried out in three stages: testing the cavity performance without cathode, testing the cavity with the Nb cathode stalk that was used at Jlab,more » and testing the cavity with a copper cathode stalk that is based on the design for the SRF gun. This paper summarizes the results of multipacting simulation, and presents the large grain cavity test setup and the test results.« less
  • The 704 MHz SRF gun successfully generated the first photoemission beam in November of 2014. The configurations of the test and the sub-systems are described.The latest results of SRF commissioning, including the cavity performance, cathode QE measurements, beam current/energy measurements, are presented in the paper.