Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel active quenching circuit for single photon detection with Geiger
  mode avalanche photodiodes   In this paper we present a novel construction of an active quenching circuit
intended for single photon detection. For purpose of evaluation, we have
combined this circuit with a standard avalanche photodiode C30902S to form a
single photon detector. A series of measurements, presented here, show that
this single photon detector has a dead time of less than 40ns, maximum random
counting frequency of over 14MHz, low after pulsing, detection efficiency of
over 20% and a good noise performance. This simple and robust active quenching
circuit can be built from of-the-shelf electronic components and needs no
complicated adjustments.

26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat