2017
DOI: 10.5506/aphyspolb.48.1961
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Commissioning of the J-PET Detector for Studies of Decays of Positronium Atoms

Abstract: The Jagiellonian Positron Emission Tomograph (J-PET) is a detector for medical imaging of the whole human body as well as for physics studies involving detection of electron-positron annihilation into photons.J-PET has high angular and time resolution and allows for measurement of spin of the positronium and the momenta and polarization vectors of annihilation quanta. In this article, we present the potential of the J-PET system for background rejection in the decays of positronium atoms.(1)

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Cited by 15 publications
(14 citation statements)
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References 33 publications
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“…J-PET aims to improve the accuracy here to O(10 −5 ) for CP and CP T observables [1,60]. Experiments to improve the accuracy on CP observables are also planned at MIT [2].…”
Section: Cp Violationmentioning
confidence: 99%
“…J-PET aims to improve the accuracy here to O(10 −5 ) for CP and CP T observables [1,60]. Experiments to improve the accuracy on CP observables are also planned at MIT [2].…”
Section: Cp Violationmentioning
confidence: 99%
“…Similarly, the registered annihilation from the back-to-back photons ordered in time and with single scattering will contribute around θ 12 + θ 23 ≈ 180 • . The region where θ 12 + θ 23 < 180 • is populated by the events when the one or two hits out of three are from the scatterings of the primary photons [19]. In about 90.34% decays of 22 Na source, a prompt photon of energy 1275 keV is also emitted just after the emission of e + within the time interval of ≈ 3.7 ps.…”
Section: Resultsmentioning
confidence: 99%
“…In this analysis, we first select the events with three hits only. The angular correlations between the registered photons in three hit events can be used partially to identify the origin and energy of photons 46,47 . The pictorial view of the three hits (green rectangles) and their angular correlations are presented in Fig.…”
Section: Events Selectionmentioning
confidence: 99%