Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel acquisition method of nuclear spectrum based on pulse area
  analysis   A novel method based on pulse area analysis(PAA) was presented for
acquisition nuclear spectrum by the digitizer. PAA method can be used as a
substitute for the traditional method of pulse height analysis (PHA). In the
PAA method a commercial digitizer was employed to sample and sum in the pulse,
and the area of pulse is proportional to the energy of the detected radiation.
The results of simulation and experiment indicate the great advantages of PAA
method, especially when the count rate is high and shaping time constant is
small. When shaping time constant is 0.5us, the energy resolution of PAA is
about 66% better than that of PHA.

33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat