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arXiv · 1504.00489

A pair spectrometer for measuring multipolarities of energetic nuclear transitions

J. Gulyás·T. J. Ketel·A. J. Krasznahorkay·M. Csatlós·L. Csige·Z. Gácsi·M. Hunyadi·A. Krasznahorkay·A. Vitéz·T. G. Tornyi
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Abstract

A multi-detector array has been designed and constructed for the simultaneous measurement of energy- and angular correlations of electron-positron pairs. Experimental results are obtained over a wide angular range for high-energy transitions in 16O, 12C and 8Be. A comparison with GEANT simulations demonstrates that angular correlations between 50 and 180 degrees of the electron-positron pairs in the energy range between 6 and 18 MeV can be determined with sufficient resolution and efficiency.

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J. Gulyás, T. J. Ketel, A. J. Krasznahorkay, M. Csatlós, L. Csige, Z. Gácsi, M. Hunyadi, A. Krasznahorkay, A. Vitéz, T. G. Tornyi. 2015-04-02. A pair spectrometer for measuring multipolarities of energetic nuclear transitions. https://doi.org/10.1016/j.nima.2015.11.009

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