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20 April 2024

» arxiv » 1811.3391

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Dedicated $Delta$E-E detector system for searching long lived heaviest nuclei deposited in scintillators
K. Zelga ; Z. Majka ; R. Płaneta ; Z. Sosin ; A. Wieloch ; M. Adamczyk ; K. Łojek ; M. Barbui ; S. Wuenschel ; K. Hagel ; X. Cao ; J. Natowitz ; R. Wada ; G. Giuliani ; E-J. Kim ; H. Zheng ; S. Kowalski ;
Date:	8 Nov 2018
Abstract:	We present a dedicated experimental setup which is currently used to search for long lived super heavy elements (SHE) implanted in catcher scintillators which were irradiated by reaction products of $^{197}$Au (7.5 A.MeV) projectile and $^{232}$Th target collisions during our experiment performed at Cyclotrone Institute, Texas A$&$M University in 2015. The built-in novel measuring apparatus consists of $Delta$E-E detector pairs which are able to register $alpha$ or spontaneous fission (SF) decays of heavy reaction products deposited in the scintillators. Their unique feature is that the examined scintillators are at the same time $Delta$E part of each of $Delta$E-E detector while E part is a silicon detector. Our apparatus is dedicated to search for SHEs which have a lifetime of a year till tens of years. Results of commissioning tests of our setup are presented.
Source:	arXiv, 1811.3391
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