Testing an indirectly heated cathode ion source: Temperature and thermionic emission

An inductively heated hot cavity catcher laser ion source.

An inductively heated hot cavity catcher has been constructed for the production of low-energy ion beams of exotic, neutron-deficient Ag isotopes. A proof-of-principle experiment has been realized by implanting primary (107)Ag(21+) ions from a heavy-ion cyclotron into a graphite catcher. A variable-thickness nickel foil was used to degrade the energy of the primary beam in order to mimic the im...

The Relation between Temperature and Work Function in Thermionic Emission.

Design and Operation of Pegasus Thermionic Cathode

A new thermionic cathode has been developed and installed for use on the PEGASUS plane wave transformer injector. The novel design of the LaB6 cathode allows for thermionic emission as well as photoinjector operation. Both test-stand measurements and in situ operational experience are reported.

Analysis of a photon-enhanced thermionic emission (PETE) solar converter with a GaInP based cathode

Conversion of solar radiation to electricity with Photon-Enhanced Thermionic Emission (PETE) uses both photonic and thermal excitation of charge carriers in a semiconductor. This device includes a semiconductor cathode (which can be composed of several semiconductor materials) illuminated and heated by concentrated sunlight, and a cooler anode, separated by a small vacuum gap. First theoretical...

On momentum conservation and thermionic emission cooling