Extension of experiments for SHE Research at NUSTAR

Devaraja, H. M and Gupta, M and Münzenberg, G and Gambhir, Y.K and Geissel, H and Heinz, S and Hofmann, S and Plass, W. R and Scheidenberger, C and Weick, H (2014) Extension of experiments for SHE Research at NUSTAR. In: 75-years of Nuclear Fission: Present status and Future Perspectives, May 8-10, 2014, Bhabha Atomic Research Centre, Mumbai.

[img] PDF
Extension of experiments for SHE May 2014.pdf
Restricted to Registered users only

Download (107kB) | Request a copy
Official URL: http://www.sympnp.org/fission75/


The heaviest element produced up to now is element Z=118. The challenges of future super heavy element (SHE) research are to gain a better understanding of the structure and stability against fission and to go beyond Z=118 to find the extension of the island of spherical SHE around Z=114 or 126 and N = 184. Experimental developments such as accelerators for intense heavy-ion beams, as well as Rare Isotope facilities are expected to allow for experiments at high sensitivity and to access new regions of SHE. Next generation instrumentation such as Ion traps and Multi-Reflection Time-of-Flight systems (MRTOF) will be useful for precise mass determination [1, 2]. Our program for SHE research on the way to NUSTAR in the first phase will be to explore reaction mechanisms and pathways to SHE synthesis including deep inelastic transfer and quasi-fission. The intent is to investigate the landscape of neutron rich SHE in the region beyond fermium (Z=100). In particular we will investigate nuclear molecules formed in central collisions at Coulomb Barrier energies as a path to cold, massive nucleon transfer [3]. In the second step as a long term goal we will develop a next generation in-flight separator for SHE research “SuperSHIP” which is already under development [4]. A compact velocity filter with large acceptance will allow SHE detection with high efficiency. Kinematic separation allows selecting the type of reaction: complete fusion or deep inelastic transfer. An ion catcher – MRTOF system can be used alternatively to the conventional silicon detectors. It allows fast separation at high rates and high mass resolution of the order of 10-5 [5] sufficient for isobaric separation and isotope identification independently of decay properties. This has the added advantage of providing an unambiguous elemental and isotopic identification in the case of unobservable decays.

Item Type: Conference or Workshop Item (Poster)
Uncontrolled Keywords: Extension;SHE;NUSTAR;Superheavy elements
Subjects: Departments at MU > Manipal Centre for Natural Sciences
Depositing User: MCNS Editor
Date Deposited: 17 May 2014 11:29
Last Modified: 06 Nov 2014 10:35
URI: http://eprints.manipal.edu/id/eprint/139548

Actions (login required)

View Item View Item