LightHouse Project with Research Instruments (RI)
The pictures show a polished metallic puck (top left) before vapor deposition, which is then coated with a black, light absorbing film (top right) © Research Instruments GmbH
Quote from a press release issued by RI:
“At RI in Bergisch Gladbach we are currently setting up the beam test facility to demonstrate the feasibility of the LightHouse electron accelerator. As electron source we use a photocathode, where a pulsed green laser beam (515nm, 40W) hits a carefully prepared bi-alkali antimonite film releasing pulses of electrons into the vacuum. Preparing such photocathodes is an art in itself, but thanks to the close collaboration with Cornell University and Helmholtz-Zentrum Berlin we have mastered the vacuum vapor deposition and learnt how to fabricate the photocathodes ourselves."
Advantages for our Partner Research Instrument:
- HZB provides RI with the know how and experience of the scientists from the accelerator research unit
- Unique test facilities at HZB can validate the newly developed technology
HZB's contribution
- Technology consulting for the production of photocathodes
- Technology consulting for use of laser pulses for release of electron pulses
- Coupler tests in the Superconducting rf Electron Accelerator laboratory (SEAlab)