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  A source of polarized electrons based on photoemission of GaAsP.

Hartmann, W., Conrath, D., Gasteyer, W., Gessinger, H. J., Heil, W., Kessler, H., et al. (1990). A source of polarized electrons based on photoemission of GaAsP. Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, 286(1-2), 1-8. doi:10.1016/0168-9002(90)90200-P.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-0E79-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-3681-6
Genre: Journal Article

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603074.pdf (Publisher version), 954KB
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Hartmann, W., Author
Conrath, D., Author
Gasteyer, W., Author
Gessinger, H. J., Author
Heil, W., Author
Kessler, H., Author
Koch, L., Author
Reichert, E., Author
Andresen, H. G., Author
Kettner, T., Author
Wagner, B., Author
Ahrens, J., Author
Jethwa, J.1, Author              
Schaefer, F. P.2, Author              
Affiliations:
1Department of NanoBiophotonics, MPI for biophysical chemistry, Max Planck Society, ou_578627              
2Abteilung Laserphysik, MPI for biophysical chemistry, Max Planck Society, ou_578547              

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 Abstract: The source described is based on photoemission of electrons from 100-GaAs0.62P0.38 activated to negative electron affinity. It is built to inject a beam of polarized electrons into the 350 MeV linear accelerator in Mainz. It is capable of delivering a mean current of 28 μA spin-polarized longitudinally to a degree of 0.44. The lifetime of the cathode under operational conditions is better than 200 h. The source was successfully run in a parity experiment, in which the analysing power of quasielastic scattering from beryllium for longitudinally polarized electrons was measured.

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Language(s): eng - English
 Dates: 1990-01-01
 Publication Status: Published in print
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 Rev. Method: Peer
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Title: Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment
Source Genre: Journal
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Pages: - Volume / Issue: 286 (1-2) Sequence Number: - Start / End Page: 1 - 8 Identifier: ISSN: 0168-9002