In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 34, No. 1R ( 1995-01-01), p. 355-
Abstract:
A charge of 2.3×10 11 electrons in 2.5 ns at a laser wavelength of 757 nm with a corresponding quantum efficiency (QE) of 2.0% measured at 752 nm was extracted from a -120 kV biased, 20 mm diameter, GaAs–AlGaAs superlattice photocathode. The maximum electron polarization measured with material from the same wafer, but in a different system, was 71% at 757 nm for a QE of 1.0% measured at 752 nm. The quantity and temporal distribution of the extracted charge is consistent with a space charge limitation, rather than a cathode charge limit. The performance of this type of cathode makes it a possible candidate for future linear colliders.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1995
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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