Ultra-cold electron source with a GaAs-photocathode

Orlov, D.; Weigel, U.; Schwalm, D.; Terekhov, A.; Wolf, A.

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Ultra-cold electron source with a GaAs-photocathode

Orlov, D., Weigel, U., Schwalm, D., Terekhov, A., & Wolf, A. (2004). Ultra-cold electron source with a GaAs-photocathode. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 532(1-2), 418-421.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8CEE-6 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8CEF-4

Genre: Journal Article

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Creators:
Orlov, D.¹, Author
Weigel, U.², Author
Schwalm, D.², Author
Terekhov, A.³, Author
Wolf, A.¹, Author

Affiliations:
1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548
2Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907546
3Institute of Semiconductor Physics, 630090, Novosibirsk, Russia, ou_persistent22

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Abstract: A source of ultra-cold magnetically guided DC electron beams with a transmission mode GaAs-photocathode has been developed. The mA currents and the required stability are obtained by using state-of-the-art technology of photocathode fabrication and cleaning in UHV. To optimize energy spreads from photocathodes, studies of the complete (longitudinal and transverse) energy distribution of the magnetized electron beam were performed. They allowed us to get a detailed look on the energy loss and momentum scattering of the electrons at the interface and finally, to obtain narrow electron energy spreads (below 10 meV) from the photocathode.

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Language(s): eng - English

Dates: Date issued: 2004

Publication Status: Issued

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Identifiers: eDoc: 204521

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Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Source Genre: Journal

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Pages: - Volume / Issue: 532 (1-2) Sequence Number: - Start / End Page: 418 - 421 Identifier: -