Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analysis of Flash ADC Data With VERITAS   VERITAS employs a 12m segmented mirror and pixellated photomultiplier tube
camera to detect the brief pulse of Cherenkov radiation produced by the
extensive air shower initiated by a cosmic high-energy gamma ray. The VERITAS
data acquisition system consists of a 500 Mega-Sample-Per-Second custom-built
flash ADC system, which samples the Cherenkov light pulse every 2 nanoseconds.
The integrated charge in each flash ADC channel is proportional to the amount
of Cherenkov light incident on the corresponding photomultiplier tube. Accurate
reconstruction of the integrated charge is required for accurate energy
estimation and spectral reconstruction. A reliable calculation of the
integrated charge at low intensities can lead to a reduction in the energy
threshold of the system, and an increase in sensitivity. This paper
investigates and compares several approaches for evaluating the integrated
charge. The Cherenkov pulse timing information in the flash ADC readout has the
potential to assist in background rejection techniques. Various methods for
extracting the timing information are investigated and excellent timing
resolution is achieved.

18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph