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  Velocity map imaging spectrometer with an electric-field-matched gas capillary

Ranke, M., Walther, S., Gebert, T., Dimitriou, A., Sumfleth, M., Prandolini, M. J., et al. (2021). Velocity map imaging spectrometer with an electric-field-matched gas capillary. Measurement Science and Technology, 32(9): 095901. doi:10.1088/1361-6501/abeddc.

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Ranke_2021_Meas._Sci._Technol._32_095901.pdf (Publisher version), 2MB
 
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https://dx.doi.org/10.1088/1361-6501/abeddc (Publisher version)
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 Creators:
Ranke, M1, Author
Walther, S1, Author
Gebert, T.2, Author              
Dimitriou, A1, Author
Sumfleth, M1, 3, Author
Prandolini, M J1, Author
Wieland, M1, Author
Drescher, M1, Author
Frühling, U1, Author
Affiliations:
1Institute for Experimental Physics, University Hamburg, ou_persistent22              
2Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
3Deutsches Elektronen-Synchrotron—DESY, ou_persistent22              

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 Abstract: The design of a velocity map imaging (VMI) spectrometer is presented with a novel gas capillary integrated into the repeller electrode. The capillary is made of semiconductive lead glass, which replicates the electrostatic field of the VMI lenses. Thus, the target gas can be directly supplied to the interaction zone without degrading the VMI resolution. With this design, a high gas density and a large free aperture to focus long wavelength radiation into the VMI spectrometer have been achieved, which facilitates time resolved experiments with intense terahertz (THz)-light fields. The performance of the VMI spectrometer is demonstrated with momentum maps of electrons from multiphoton ionization of xenon and a first extreme ultraviolet-THz-streak experiment.

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Language(s): eng - English
 Dates: 2020-12-102021-03-112021-05-282021-09
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: DOI: 10.1088/1361-6501/abeddc
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Title: Measurement Science and Technology
Source Genre: Journal
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Publ. Info: Bristol : IOP Pub.
Pages: - Volume / Issue: 32 (9) Sequence Number: 095901 Start / End Page: - Identifier: ISSN: 0957-0233
CoNE: https://pure.mpg.de/cone/journals/resource/954927547263