Abigail McGlone - IOP Nuclear Physics Conference Highlights
Abigail McGlone presented at the IOP Nuclear Physics Conference on topics like Collinear Resonance Ionization Spectroscopy of Antimony and Experimental Achievements in Molecular Spectroscopy. The presentations covered techniques, theoretical insights, and experimental details in the field of nuclear physics, showcasing advancements in laser ionization, hyperfine structure analysis, and single proton behavior research. The conference also delved into topics like field ionization, isotope shifts, and laser spectroscopy applications. View images and details of the groundbreaking research shared by Abigail McGlone in this comprehensive overview.
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Presentation Transcript
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Collinear Resonance Ionization Spectroscopy of Antimony IOP Nuclear Physics Conference Manchester 2025 Abigail McGlone 1
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference CRIS technique Collinear Resonance Ionization Spectroscopy on RIB from ISOLDE 2
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference CRIS technique Extract the hyperfine structure from laser lab ISOLDE ion beam Neutralization Separation Detection Laser ionization 3
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Hyperfine structure From the HFS we get: Nuclear spin I F=2 J=3/2 Magnetic dipole moment Hyperfine splitting n=2 F=1 F=1 Scan laser frequency F=0 J=1/2 Electric quadrupole moment Qs F=1 J=1/2 n=1 F=0 Changes in charge radii ? r2 Isotope shift: shift of HFS between two isotopes A and A 4
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Experimental Achievements Molecular spectroscopy and RaF- RaF and AcF molecules Fr: atomic level search Sb: single particle nature above Z=50 Au: island of deformation, shape coexistence Decay assisted laser spectroscopy Ar, K: Field ionization Zn: behaviour around N=50 65 isotopes across 10 elements !! Field ionization commissioning Cr: N=40 island of inversion Al: N=20 island of inversion 5
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Antimony Single proton above Z=50 Sn Test of single particle behaviour from shell-model predictions Previous laser spectroscopy at ISOLDE studied neutron-rich 112- 134Sb Proposed to measure 105-123Sb Accepted May 2023 Experiment run August 2024 6
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Experimental details Three step laser ionization Sb beam from ISOLDE LaC target ionized with RILIS 100 Hz pulsed Nd:YAG compact laser system 560 nm from a pulsed dye laser using Rhodamine 560 dye pumped with 532nm at 100 Hz 217 nm produced by frequency quadrupling 868 nm Ti:Sa at 1 kHz. First intra-cavity doubled, then doubled again 7
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Results Spectroscopy performed on 111-121,123Sb. Odd-even spectra shown right Preliminary analysis agrees with literature Ongoing analysis to determine changes in charge radii 8
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Challenges - ISCOOL Laser systems are pulsed, use pulsed beams produced using ISCOOL Change in FWHM Centroid shift 9
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Challenges Yields and contamination 112 110 Thanks to ISOLTRAP for beam composition test Low yields for more exotic cases Contamination from In and molecules Also: high collisional ionization rate and laser induced background 10
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Field Ionization at CRIS Apply a homogeneous electric field to ionize atoms prepared in Rydberg states Fig modified from A. Vernon et al., Sci. Rep. 10, 12306 (2020). 11
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Field Ionization at CRIS Apply a homogeneous electric field to ionize atoms prepared in Rydberg states Shown to work on-line with both Fr (above) and K (Plot thanks to Pierre Lassegues) 12
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Conclusions Spectroscopy performed on 111-121,123Sb Ongoing analysis for extraction of nuclear observables Continual development of CRIS technique An exciting year coming up at CRIS expecting to perform four more experimental campaigns 13
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference With thanks to the CRIS collaboration, Manchester nuclear Physics Group and all operators and targets teams at ISOLDE, CERN 14
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Backup Slides 15
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference 16 110 Sb Still working on combining scans with appropriate references to get the best possible candidate 16
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference 123 120 121 Overlapped g.s. and m. 118 119 117 116 115 114 113 112 111 17
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference ISOLDE beam 18
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference ToF shifting centroids 19
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Spectral linewidth Asymmetry Strange double peak 20
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Hyperfine structure J=3/2 J=3/2 21
29/04/2025 Abigail McGlone - IOP Nuclear Physics Conference Hyperfine structure From the HFS we get: Nuclear spin I Magnetic dipole moment Scan laser frequency Electric quadrupole moment Qs Changes in charge radii ? r2 Isotope shift: shift of HFS between two isotopes A and A 22
