Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Commissioning results and electron beam characterization at the S-band
  photoinjector at SINBAD-ARES   Over the last years, the generation and acceleration of ultra-short, high
quality electron beams has attracted more and more interest in accelerator
science. Electron bunches with these properties are necessary to operate and
test novel diagnostics and advanced high gradient accelerating schemes such as
plasma accelerators or dielectric laser accelerators. Furthermore, several
medical and industrial applications require high-brightness electron beams. The
dedicated R&D facility ARES at DESY will provide such probe beams in the
upcoming years. After the setup of the normal-conducting RF photoinjector and
linear accelerating structures, ARES successfully started the beam
commissioning of the RF gun. This paper gives an overview of the ARES
photoinjector setup and summarizes the results of the gun commissioning
process. The quality of the first generated electron beams is characterized in
terms of charge, momentum, momentum spread and beam size. Additionally, the
dependencies of the beam parameters on RF settings are investigated. All
measurement results of the characterized beams fulfill the requirements to
operate the ARES linac with this RF photoinjector.

31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
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The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
30
The categories of this paper are: q-alg