Photoelectron Generated Amplified Spontaneous Radiation Source (PEGASUS)

The PEGASUS laboratory is home of a small university-size accelerator beamline for research in ultrafast beams, advanced beam manipulation and diagnostics techniques. Experiments currently planned include novel beam instrumentation like RF deflectors and Electro-Optic Sampling Technique, exploration of new regimes of operation of RF photoinjectors, high resolution longitudinal phase space measurements and ultrafast relativistic electron diffraction.

History

Occupies same facility as the old Saturnus Lab (home of the first UCLA SASE experiments). Construction Begun Spring 1998. Learned from Experience with Saturnus Lab. Up to 2006 operated as a Photoinjector Test Facility and FEL physics Lab. As of Spring 2007, under the supervision of Professor Pietro Musumeci the Pegasus laboratory has been commissined as an advanced photoinjector laboratory for conducting research in novel dynamical regimes of beam evolution, ultrafast beam sources and diagnostics. One of the main goals of the newly renovated laboratory is the development of a new, potentially revolutionary, technique in ultrafast material studies: ultrafast relativistic electron diffraction.

Parameters

Value	Parameters
Energy	>4 MeV
Energy Spread	0.5 %
Emittance	<1 mm mrad
Bunch Charge	1-100 pC
Bunch Length	<100 fs - 2 ps

Experiments

• Ultrafast relativistic electron diffraction
• Longitudinal phase space measurements
• Electro-optic sampling diagnostics
• Dielectric laser acceleration