Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Studies on the Cherenkov Effect for Improved Time Resolution of TOF-PET   With the newly gained interest in the time of flight method for positron
emission tomography (TOF-PET), many options for pushing the time resolution to
its borders have been investigated. As one of these options the exploitation of
the Cherenkov effect has been proposed, since it allows to bypass the
scintillation process and therefore provides almost instantaneous response to
incident 511keV annihilation photons. Our simulation studies on the yield of
Cherenkov photons, their arrival rate at the photon detector and their angular
distribution reveal a significant influence by Cherenkov photons on the rise
time of inorganic scintillators - a key-parameter for TOF in PET. A measurement
shows the feasibility to detect Cherenkov photons in this low energy range.

15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph