Abstract
The coolest particle source on earth
Wouter Engelen, Nicola Debernardi, Peter Pasmans, Stefano Dal Conte,
Bas van der Geer, Edgar Vredenbregt, Jom Luiten
Eindhoven University of Technology, Netherlands
Ultra-bright electron beams can be produced by near-threshold photo ionization of a laser-cooled atom cloud inside a magneto-optical trap. Such laser-cooled sources have orders of magnitude lower emittance compared to photo-emission sources because of their low initial temperature. The application we have in mind is single-shot ultrafast electron diffraction, but these sources are also interesting as injectors for X-FELs in the low-charge, low-emittance regime. At Eindhoven University of Technology a laser-cooled electron source has been constructed and electron pulses have been produced using both nanosecond and sub-picosecond photo-ionization laser pulses. In both cases thermal emittances have been measured corresponding to an effective source temperature of
Original language | English |
---|---|
Title of host publication | Colloquium/seminar UCLA, Los Angeles, USA |
Publication status | Published - 2011 |
Event | conference; Colloquium/seminar UCLA, Los Angeles, USA; 2011-09-23; 2011-09-23 - Duration: 23 Sept 2011 → 23 Sept 2011 |
Conference
Conference | conference; Colloquium/seminar UCLA, Los Angeles, USA; 2011-09-23; 2011-09-23 |
---|---|
Period | 23/09/11 → 23/09/11 |
Other | Colloquium/seminar UCLA, Los Angeles, USA |