Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Fast Switchyard for the TESLA FEL-Beam Using a Superconducting
  Transverse Mode Cavity   In the present design of the TESLA Linear Collider with integrated X-ray
Laser Facility it is necessary that 1 ms long bunch trains with about 10000
bunches are generated and distributed to several free electron laser (FEL) beam
lines. The different scientific applications of the X-ray FELs need specific
filling patterns of the bunches in the bunch train. It is shown that a fast
switch-yard based on a superconducting transverse mode cavity can be used to
generate the required bunch pattern in a flexible way while keeping the beam
loading in the main linear accelerator constant. The conceptual design of the
beam optics and the transverse mode cavity are presented.

7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat