Published 1993
| Version v1
Report
Quantum efficiency measurements of a copper photocathode in an RF electron gun
Creators
- 1. Univ. of California, Los Angeles, CA (United States)
Description
A 4.5 MeV photocathode RF Gun has been commissioned at UCLA. A photo-injector drive laser produces sub 2 ps pulses of UV (λ = 266 nm) light with up to 200 μJ/pulse, and illuminates a copper cathode. The photoelectrons are accelerated to an energy of 3.5 MeV within the gun. The electron beam charge is measured as a function of laser energy using an integrating current transformer (ICT). The authors present measurements of quantum efficiency as a function of laser polarization for injection angles of 2 degrees and 70 degrees with respect to the cathode normal. At 70 degrees incidence a 50% enhancement in quantum efficiency (> 10-4) is observed for p-polarized light over s-polarized light
Additional details
Publishing Information
- Imprint Title
- Proceedings of the 1993 Particle Accelerator Conference: Volume 4
- Imprint Pagination
- 738 p.
- Journal Page Range
- p. 2976-2978.
- Report number
- DOE/ER/40779--1-Vol.4
Conference
- Title
- international particle accelerator conference.
- Acronym
- PAC '93
- Dates
- 17-20 May 1993.
- Place
- Washington, DC (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 26025249
- Subject category
- S43: PARTICLE ACCELERATORS;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- COPPER; ELECTRON GUNS; PHOTOCATHODES; PHOTOIONIZATION; QUANTUM EFFICIENCY
- Descriptors DEC
- CATHODES; EFFICIENCY; ELECTRODES; ELEMENTS; IONIZATION; METALS; TRANSITION ELEMENTS
Optional Information
- Secondary number(s)
- CONF-930511--Vol.4.