Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Drive beam sources and longitudinal shaping techniques   Linear colliders are an attractive platform to explore high-precision physics
of newly discovered particles. The recent significant progress in advanced
accelerator technologies has motivated their applications to colliders which
has been discussed in the {\sc alegro} workshop. In this paper we discuss one
promising scheme, collinear wakefield acceleration. We especially discuss
available drive and witness beam sources based on L and S-band radiofrequency
technology, and also summarize available and forthcoming longitudinal shaping
techniques to improve the overall acceleration efficiency via the transformer
ratio.

28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess