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    High Brightness Injectors Based On Photocathode DC Gun

    Sample results of new injector design method based on a photocathode dc gun are presented, based on other work analytically proving the validity of the emittance compensation scheme for the case even when beam bunching is involved. We have designed sever al new injectors appropriate for different bunch charge ranges accordingly. Excellent beam quality produced by these injectors clearly shows that a photocathode dc gun can compete with a rf gun on an equal footing as the source of an electron beam for th e bunch charge ranging up to 2 nano Coulomb (nC). This work therefore elevates a dc gun based injector to the preferred choice for many ongoing high brightness accelerator projects considering the proven operational stablility and high average power capa bility of the dc gun.

    This work was supported by the U.S. DOE Contract No DE-AC05-84ER40150.

    Authors: B. Yunn

    Abstract submitted to PAC 2001, Chicago, IL, June 18-24, 2001

    Updated July 27, 2001



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