University of Surrey

Test tubes in the lab Research in the ATI Dance Research


Wilson, JN, Lebois, M, Qi, L, Amador-Celdran, P, Bleuel, D, Briz, JA, Carroll, R, Catford, Wilton, De Witte, H, Doherty, D , Eloirdi, R, Georgiev, G, Gottardo, A, Goasduff, A, Hadynska-Klek, K, Hauschild, K, Hess, M, Ingeberg, V, Konstantinopoulos, T, Ljungvall, J, Lopez-Martens, A, Lorusso, G, Lozeva, R, Lutter, R, Marini, P, Matea, I, Materna, T, Mathieu, L, Oberstedt, A, Oberstedt, S, Panebianco, S, Podolyak, Zsolt, Porta, D, Regan, Patrick, Reiter, P, Rezynkina, K, Rose, SJ, Sahin, E, Seidlitz, M, Shearman, Robert, Siebeck, B, Siem, S, Smith, AG, Tveten, GM, Verney, D, Warr, N, Zeiser, F and Zielinska, M (2017) PRODUCTION AND STUDY OF NEUTRON-RICH NUCLEI USING THE LICORNE DIRECTIONAL NEUTRON SOURCE In: Conference on Nuclear Physics “Extremes of the Nuclear Landscape”, 2016-08-28 - 2016-09-04, Zakopane, Poland.

Wilson-LICORNE-APB-2017-Zakopane-.pdf - Accepted version Manuscript
Available under License : See the attached licence file.

Download (2MB) | Preview
Text (licence)
Available under License : See the attached licence file.

Download (33kB) | Preview
v48p0395.pdf - Version of Record

Download (2MB) | Preview


We have recently successfully demonstrated a new technique for production and study of many of the most exotic neutron-rich nuclei at moderate spins. LICORNE, a newly developed directional inverse-kinematic fast neutron source at the IPN Orsay, was coupled to the MINIBALL high resolution -ray spectrometer to study nuclei the furthest from stability using the 238U(n; f) reaction. This reaction and 232Th(n; f) are the most neutron-rich fission production mechanisms achievable and can be used to simultaneously populate hundreds of neutron-rich nuclei up to spins of 16 ~. High selectivity in the experiment was achieved via triple -ray coincidences and the use of a 400 ns period pulsed neutron beam, a technique which is unavailable to other population mechanisms such as 235U(nth; f) and 252Cf(SF). The pulsing allows time correlations to be exploited to separate delayed rays from isomeric states in the hundreds of nuclei produced, which are then used to cleanly select a particular nucleus and its exotic binary partners. In the recent experiment, several physics cases are simultaneously addressed such as shape coexistence, the evolution of shell closures far from stability, and the spectroscopy of nuclei in the r-process path near N = 82. Preliminary physics results on anomalies in the 238U(n; f) fission yields and the structure of the 138Te and 100Sr nuclei will soon be published. A future project, -ball, to couple LICORNE with a hybrid escape-suppressed spectrometer to refine further the technique and achieve a large increase in the observational limit is discussed.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Physics
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Wilson, JN
Lebois, M
Qi, L
Amador-Celdran, P
Bleuel, D
Briz, JA
Carroll, R
De Witte, H
Doherty, D
Eloirdi, R
Georgiev, G
Gottardo, A
Goasduff, A
Hadynska-Klek, K
Hauschild, K
Hess, M
Ingeberg, V
Konstantinopoulos, T
Ljungvall, J
Lopez-Martens, A
Lorusso, G
Lozeva, R
Lutter, R
Marini, P
Matea, I
Materna, T
Mathieu, L
Oberstedt, A
Oberstedt, S
Panebianco, S
Porta, D
Reiter, P
Rezynkina, K
Rose, SJ
Sahin, E
Seidlitz, M
Siebeck, B
Siem, S
Smith, AG
Tveten, GM
Verney, D
Warr, N
Zeiser, F
Zielinska, M
Date : March 2017
DOI : 10.5506/APhysPolB.48.395
Copyright Disclaimer : Copyright The Authors, 2016. Published under the conditions of Creative Common License, CC-BY 4.0.
Contributors :
Jagiellonian University,
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 26 Apr 2017 17:07
Last Modified : 16 Jan 2019 17:14

Actions (login required)

View Item View Item


Downloads per month over past year

Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800