Photoemission studies on BNL/AES/JLAB all niobium, superconducting RF injector

被引：0

作者：

Rao, T ^{[1
]}

Ben-Zvi, I ^{[1
]}

Burrill, A ^{[1
]}

Hahn, H ^{[1
]}

Kayran, D ^{[1
]}

Zhao, Y ^{[1
]}

Kneisel, P ^{[1
]}

Cole, M ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

2005 IEEE PARTICLE ACCELERATOR CONFERENCE (PAC), VOLS 1-4 | 2005年

关键词：

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Photoelectrons from an all niobium superconducting injector have been generated for the first time. QE of 2x10(-6) at 266 nm and 2x10(-5) at 248 nm, maximum charge of 10 nC in 10 ns and charge/cycle of 0.8 nC were measured. The lower QE observed after laser cleaning, compared to the room temperature measurements, is attributed to the long distance between the cathode and the closest ion pump and the possibility of the laser ablated material adsorbed back onto the cathode surface at cryogenic temperature. No cavity quenching has been observed even at the maximum laser energy of 3 mJ, maximum repetition rate of 250 Hz and maximum charge of 10 nC from the cathode.

引用

页码：4096 / 4098

页数：3

共 5 条

[1] Photoemission studies on niobium for superconducting photoinjectors
Smedley, J
Rao, T
Zhao, Q
JOURNAL OF APPLIED PHYSICS, 2005, 98 (04)
[2] Design, construction and status of all niobium superconducting photoinjector at BNL
Srinivasan-Rao, T
Ben-Zvi, I
Burrill, A
Citver, G
Hershcovitch, A
Pate, D
Reuter, A
Scaduto, J
Zhao, Q
Zhao, Y
Delayen, J
Kneisel, P
Bluem, H
Cole, M
Favale, A
Rathke, J
Schultheiss, T
PROCEEDINGS OF THE 2003 PARTICLE ACCELERATOR CONFERENCE, VOLS 1-5, 2003, : 92 - 94
[3] RF design and operating performance of the BNL/AES 1.3 GHz single cell superconducting RF photocathode electron gun
Cole, M
Kneisel, P
Ben-Zvi, I
Burrill, A
Hahn, H
Rao, T
Zhao, Y
2005 IEEE PARTICLE ACCELERATOR CONFERENCE (PAC), VOLS 1-4, 2005, : 3330 - 3332
[4] Muon spin rotation studies of niobium for superconducting rf applications
Grassellino, A.
Beard, C.
Kolb, P.
Laxdal, R.
Lockyer, N. S.
Longuevergne, D.
Sonier, J. E.
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2013, 16 (06):
[5] Beam dynamics studies for a 3 1/2 cell superconducting RF photo injector operating at low and high bunch charge
Staufenbiel, F.
Janssen, D.
Kamps, T.
Lehnert, U.
Lipka, D.
Michel, P.
Teichert, J.
Xiang, R.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2008, 584 (2-3): : 259 - 265

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