Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transfer conditions and transmission bias in capillaries of vacuum
  interfaces   A detailed study of the transfer of ions in transfer capillaries of
electrospray ion sources is presented. The laminar flow field for various
capillary sizes and wall temperatures is calculated. It forms the base of ion
transfer simulation of a large number of ions with space charge. This allows to
study the thermodynamical conditions of the ions during transfer, which are
found to vary strongly with the capillary dimensions. The dependence of mass
flow and ion current on the size of the capillary is presented. Simple scaling
relations are derived and tested. The method also allows to predict a transfer
bias between different ion species depending on the difference in ion mobility
and the composition of transferred ions.

17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom