Exploring the Changing Shell Structure of Nuclei
Lead Research Organisation:
University of Manchester
Department Name: Physics and Astronomy
Abstract
The project aims to investigate the properties of a nuclei near the proton and neutron drip lines using cases of exotic nuclei which will accentuate measurements for the physics cases such as the role of the three-nucleon forces, the interplay of central and tensor components of the nucleon-nucleon interaction on the shell structure and the topology of the nucleus near the drip lines.
The short-lived exotic nuclei will be provided by CERN's ISOLDE facility to the collinear resonance ionisation spectroscopy (CRIS) experiment beam-line, which allows laser spectroscopy measurements of magnetic dipole moment, electric quadrupole moment, charge radii and spin of individual states of interest.
A portion of experimental work will also be carried out at Manchester's PSI to setup an ion source beam-line analogous to the CRIS experiment for resonance ionisation scheme testing or similar experiments.
The short-lived exotic nuclei will be provided by CERN's ISOLDE facility to the collinear resonance ionisation spectroscopy (CRIS) experiment beam-line, which allows laser spectroscopy measurements of magnetic dipole moment, electric quadrupole moment, charge radii and spin of individual states of interest.
A portion of experimental work will also be carried out at Manchester's PSI to setup an ion source beam-line analogous to the CRIS experiment for resonance ionisation scheme testing or similar experiments.
Organisations
People |
ORCID iD |
| Kieran Flanagan (Primary Supervisor) | |
| Adam Vernon (Student) |
Publications
Chrysalidis K
(2020)
First demonstration of Doppler-free 2-photon in-source laser spectroscopy at the ISOLDE-RILIS
in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Day Goodacre T
(2018)
Radium ionization scheme development: The first observed autoionizing states and optical pumping effects in the hot cavity environment
in Spectrochimica Acta Part B: Atomic Spectroscopy
De Groote R
(2020)
Measurement and microscopic description of odd-even staggering of charge radii of exotic copper isotopes
in Nature Physics
De Groote R
(2017)
Dipole and quadrupole moments of Cu 73 - 78 as a test of the robustness of the Z = 28 shell closure near Ni 78
in Physical Review C
Farooq-Smith G
(2017)
Probing the Ga 31 ground-state properties in the region near Z = 28 with high-resolution laser spectroscopy
in Physical Review C
Garcia Ruiz R
(2018)
High-Precision Multiphoton Ionization of Accelerated Laser-Ablated Species
in Physical Review X
Garcia Ruiz RF
(2020)
Spectroscopy of short-lived radioactive molecules.
in Nature
Gustafsson F
(2020)
Tin resonance-ionization schemes for atomic- and nuclear-structure studies
in Physical Review A
Koszorús Á
(2019)
Precision measurements of the charge radii of potassium isotopes
in Physical Review C
Koszorús Á
(2021)
Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of N = 32
in Nature Physics
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| ST/N504178/1 | 30/09/2015 | 30/03/2021 | |||
| 1685877 | Studentship | ST/N504178/1 | 30/09/2015 | 31/03/2019 | Adam Vernon |
| Title | Nucleosynthesis card game |
| Description | A.R.V. made an educational card game for sale to the general public featuring art work of astrophysical processes to be played in a way which will raise awareness of the connection to nuclear physics. |
| Type Of Art | Artistic/Creative Exhibition |
| Year Produced | 2018 |
| Impact | Requests to make a digital version of the game. Further outreach activities planned at University of York using the cards. |
| URL | http://www.nucleosynthesis.space/ |
| Description | The size and shape of short-lived indium atomic nuclei were measured by laser spectroscopy. The measurements revealed sudden structural changes of the nuclei with changing neutron number and gave details of properties of the nuclear force which binds nuclei. |
| Exploitation Route | The technical developments made during the research will enable sensitive separation and measurement of other exotic isotopes for further nuclear structure and atomic physics research. Furthermore, the setup developed can be directly adapted by industry for ultra-trace analysis of elements. The nuclear structure results obtained demands further research by experiment and development of nuclear theory to explain. Two national research facilities (ISOLDE, Switzerland and FRIB, USA) will use a sensitive isotope separation and detection setup developed as part of the work, and which can be applied to the industry for ultra-trace analysis of elements also. |
| Sectors | Education Other |
| Description | The technical developments in isotope separation and detection can be applied directly to the Manchester-based https://www.artemis-analytical.com/ for ultra-trace analysis of elements for e.g. carbon-dating for historical purposes, or tracing the origin of compounds used in the food and drink. |
| First Year Of Impact | 2021 |
| Sector | Agriculture, Food and Drink,Environment,Culture, Heritage, Museums and Collections |
| Title | Charge exchange simulation scripts |
| Description | Python and Mathematica scripts for the simulation of neutralization of ions by electron pick-up reactions |
| Type Of Technology | Software |
| Year Produced | 2019 |
| Open Source License? | Yes |
| Impact | Results described in open-access article: Vernon, A.R., J. Billowes, C.L. Binnersley, M.L. Bissell, T.E. Cocolios, G.J. Farooq-Smith, K.T. Flanagan, et al. 2019. "Simulation of the Relative Atomic Populations of Elements 1 = Z =89 Following Charge Exchange Tested with Collinear Resonance Ionization Spectroscopy of Indium." Spectrochimica Acta Part B: Atomic Spectroscopy 153 (March): 61-83. https://doi.org/10.1016/J.SAB.2019.02.001. |
| URL | https://www.sciencedirect.com/science/article/pii/S0584854718305597 |
| Description | Giving tours to general public at ISOLDE |
| Form Of Engagement Activity | Participation in an open day or visit at my research institution |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Public/other audiences |
| Results and Impact | Giving presentations and tours to visitors of the ISOLDE facility 2018-2020 |
| Year(s) Of Engagement Activity | 2018,2019,2020 |
| Description | Nucleosynthesis card game |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Public/other audiences |
| Results and Impact | We held a stall to sell an educational card game we made based on nuclear physics at the INPC 2019 conference in Glasgow, 100 copies were distributed to either researchers and general public. |
| Year(s) Of Engagement Activity | 2019 |
| URL | http://www.nucleosynthesis.space/ |