Photocathode operation of a thermionic RF gun
(2009) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 606(3). p.291-295- Abstract
- The thermionic RF gun using a BaO cathode at the MAX-lab linac injector has been successfully commissioned for additional operation as a photocathode gun. By retaining the BaO cathode, lowering the temperature below thermal emission and illuminating it with a UV (263 nm) 9 ps laser pulse a reduced emittance and enhanced emission control has been achieved. Measurements show a normalised emittance of 5.5 mm mrad at 200 pC charge and a maximum quantum efficiency of 1.1×10-4. The gun is now routinely switched between storage ring injections in thermionic mode and providing a beam for the MAX-lab test FEL in photocathode mode.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1455326
- author
- Thorin, Sara LU ; Cutic, Nino LU ; Lindau, Filip LU ; Werin, Sverker LU and Curbis, Francesca LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
- volume
- 606
- issue
- 3
- pages
- 291 - 295
- publisher
- Elsevier
- external identifiers
-
- wos:000268453600008
- scopus:67649657748
- ISSN
- 0167-5087
- DOI
- 10.1016/j.nima.2009.05.004
- language
- English
- LU publication?
- yes
- id
- 7e1fabc8-8b3c-45a4-b01f-1e7bee527096 (old id 1455326)
- date added to LUP
- 2016-04-01 13:58:23
- date last changed
- 2022-04-22 00:38:38
@article{7e1fabc8-8b3c-45a4-b01f-1e7bee527096, abstract = {{The thermionic RF gun using a BaO cathode at the MAX-lab linac injector has been successfully commissioned for additional operation as a photocathode gun. By retaining the BaO cathode, lowering the temperature below thermal emission and illuminating it with a UV (263 nm) 9 ps laser pulse a reduced emittance and enhanced emission control has been achieved. Measurements show a normalised emittance of 5.5 mm mrad at 200 pC charge and a maximum quantum efficiency of 1.1×10-4. The gun is now routinely switched between storage ring injections in thermionic mode and providing a beam for the MAX-lab test FEL in photocathode mode.}}, author = {{Thorin, Sara and Cutic, Nino and Lindau, Filip and Werin, Sverker and Curbis, Francesca}}, issn = {{0167-5087}}, language = {{eng}}, number = {{3}}, pages = {{291--295}}, publisher = {{Elsevier}}, series = {{Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment}}, title = {{Photocathode operation of a thermionic RF gun}}, url = {{http://dx.doi.org/10.1016/j.nima.2009.05.004}}, doi = {{10.1016/j.nima.2009.05.004}}, volume = {{606}}, year = {{2009}}, }