Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling sidelobe response for ground-based mm-wavelength telescopes
  with the geometrical theory of diffraction   Accurate optical modeling is important for the design and characterisation of
current and next-generation experiments studying the Cosmic Microwave
Background (CMB). Geometrical Optics (GO) cannot model diffractive effects. In
this work, we discuss two methods that incorporate diffraction, Physical Optics
(PO) and the Geometrical Theory of Diffraction (GTD). We simulate the optical
response of a ground-based two-lens refractor design shielded by a ground
screen with time-reversed simulations. In particular, we use GTD to determine
the interplay between the design of the refractor's forebaffle and the
sidelobes caused by interaction with the ground screen.

30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga