CHARACTERISTICS OF A TA PHOTOCATHODE FOR THE GENERATION OF PICOSECOND X-RAY PULSES Academic Article

abstract

• The properties of laser-driven tantalum photocathodes as an electron emitter for the creation of ultrashort electron bunches and x-ray pulses are discussed. Despite the smaller quantum efficiency of metals, their inertness, damage threshold, and lifetime compare favorably with semiconductor photocathodes. Using the fourth harmonic of a Nd:YAG laser, currents of over 3 nC per pulse have been achieved which produced x-ray pulses with a brightness of 6.2106 Cu K x-ray photons cm-2 sr-1 and a duration of 70 ps, as determined by an x-ray streak camera.

authors

• Rentzepis, Peter

published proceedings

• APPLIED PHYSICS LETTERS

altmetric score

• 3

author list (cited authors)

• VANWONTERGHEM, B., & RENTZEPIS, P. M.

citation count

• 12

complete list of authors

• VANWONTERGHEM, B||RENTZEPIS, PM

publication date

• March 1990

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

Digital Object Identifier (DOI)

• 10.1063/1.102599

start page

• 1005

end page

• 1007

volume

• 56

issue

• 11

URL

• http://dx.doi.org/10.1063/1.102599