Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Studies of single-photoelectron response and of performance in magnetic
  field of a H8500C-03 photomultiplier tube   We studied the single-photoelectron detection capabilities of a multianode
photomultiplier tube H8500C-03 and its performance in high magnetic field. Our
results show that the device can readily resolve signals at the single
photoelectron level making it suitable for photon detection in both threshold
and ring imaging Cerenkov detectors. We also found that a large longitudinal
magnetic field, up to 300 Gauss, induces a change in the relative output of at
most 55% for an edge pixel, and of at most 15% for a central pixel. The
H8500C-03 signal loss in transverse magnetic fields it is significantly more
pronounced than for the longitudinal case. Our studies of single photoelectron
reduction in magnetic fields point to the field induced misfocusing of the
photoelectron extracted from the photocathode as primary cause of signal loss.
With appropriate shielding this PMT could function in high magnetic field
environments.

12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga