Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel method to measure the dE/dx resolution of a TPC prototype using
  266 nm UV laser   The specific energy loss (dE/dx) resolution is critical for particle
identification and separation in TPC. In connection with the R&D for the TPC at
the Circular Electron Positron Collider (CEPC), we find the laser ionisation
obeys the Gaussian distribution theoretically and experimentally. Based on
this, we develop a novel method using a 266 nm UV laser to measure the dE/dx
resolution. Comparing to the traditional methods with particle beams or cosmic
rays, the novel method with 266 nm UV laser is more convenient and flexible. We
verify the method's feasibility with a TPC prototype and extrapolate the dE/dx
resolution to the CEPC TPC. The estimation of the dE/dx resolution is without
the magnetic field.

2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int