English

Dedicated $\Delta$E-E detector system for searching long lived heaviest nuclei deposited in scintillators

Instrumentation and Detectors 2019-05-01 v1

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^{197}Au (7.5 A.MeV) projectile and 232^{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 Δ\DeltaE-E detector pairs which are able to register α\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 Δ\DeltaE part of each of Δ\DeltaE-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.

Keywords

Cite

@article{arxiv.1811.03391,
  title  = {Dedicated $\Delta$E-E detector system for searching long lived heaviest nuclei deposited in scintillators},
  author = {K. Zelga and Z. Majka and R. Płaneta and Z. Sosin and A. Wieloch and M. Adamczyk and K. Łojek and M. Barbui and S. Wuenschel and K. Hagel and X. Cao and J. Natowitz and R. Wada and G. Giuliani and E-J. Kim and H. Zheng and S. Kowalski},
  journal= {arXiv preprint arXiv:1811.03391},
  year   = {2019}
}

Comments

6 pages, 3 figures, presented at Zakopane Conference on Nulear Physics 2018, submitted to Acta Physica Polonica B