Solving a deconvolution problem in photon spectrometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00438368" target="_blank" >RIV/68378271:_____/10:00438368 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.nima.2010.03.148" target="_blank" >http://dx.doi.org/10.1016/j.nima.2010.03.148</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nima.2010.03.148" target="_blank" >10.1016/j.nima.2010.03.148</a>
Alternative languages
Result language
angličtina
Original language name
Solving a deconvolution problem in photon spectrometry
Original language description
We solve numerically a deconvolution problem to extract the undisturbed spectrum from the measured distribution contaminated by the finite resolution of the measuring device. A problem of this kind emerges when one wants to infer the momentum distribution of the neutral pions by detecting the it decay photons using the photon spectrometer of the ALICE LHC experiment at CERN [1]. The underlying integral equation connecting the sought for pion spectrum and the measured gamma spectrum has been discretizedand subsequently reduced to a system of linear algebraic equations. The latter system, however, is known to be ill-posed and must be regularized to obtain a stable solution. This task has been accomplished here by means of the Tikhonov regularization scheme combined with the L-curve method. The resulting pion spectrum is in an excellent quantitative agreement with the pion spectrum obtained from a Monte Carlo simulation.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Instruments & Methods in Physics Research Section A
ISSN
0168-9002
e-ISSN
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Volume of the periodical
620
Issue of the periodical within the volume
2-3
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
526-533
UT code for WoS article
000280601700053
EID of the result in the Scopus database
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