1.
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Benchmark evaluation of a single frequency continuous wave OPO seeded pulsed dye amplifier for high-resolution laser spectroscopy
/ Urquiza-González, M (Unlisted, DE) ; Au, M (CERN ; Mainz U.) ; Bernerd, C (Leuven U.) ; Bissell, M (Manchester U.) ; van den Borne, B (Leuven U.) ; Chrysalidis, K (CERN) ; Cocolios, T E (Leuven U.) ; Fedosseev, V N (CERN) ; Flanagan, K T (Manchester U.) ; Garcia Ruiz, R G (MIT) et al.
The study of the atomic spectrum via resonant laser excitation provides access to underlying effects caused by the nuclear structure, which is of special interest in short-lived radioisotopes produced at Isotope Separator On-Line (ISOL) facilities. Current implementations of resonant laser ionization techniques often limit the extraction of the nuclear observables due to the low spectral resolution of the pulsed laser systems deployed. [...]
2023
- Published in : Proc. SPIE 12399 (2023) 123990M
In : 26th Solid State Lasers XXXII: Technology and Devices (SPIE LASE), San Fancisco, CA, USA, 28 Jan - 3 Feb 2023, pp.123990M
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2.
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Single-longitudinal-mode pumped pulsed-dye amplifier for high-resolution laser spectroscopy
/ Verlinde, M (Leuven U.) ; Ferrer, R (Leuven U.) ; Claessens, A (Leuven U.) ; Granados, C A (Leuven U. ; CERN) ; Kraemer, S (Leuven U.) ; Kudryavtsev, Yu (Leuven U.) ; Li, D (Unlisted, DE) ; Van den Bergh, P (Leuven U.) ; Van Duppen, P (Leuven U.) ; Verstraelen, E (Leuven U.)
The In-Gas-jet Laser Ionization and Spectroscopy (IGLIS) technique relies on narrow-bandwidth, high-peak-power, short-pulse-length (≈10 ns), and high-repetition-rate laser pulses to probe, precisely and efficiently, the hyperfine structure of medium-heavy and heavy isotopes, embedded in a supersonic jet. The power and repetition rate requirements of the laser system are met by combining ≈100 W, 8 ns pulse width, 10 kHz commercial Nd:YAG pump lasers with a single-mode continuous wave seeded Pulsed Dye Amplifier (PDA). [...]
2020
- Published in : Rev. Sci. Instrum. 91 (2020) 103002
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3.
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High-resolution laser spectroscopy with the Collinear Resonance Ionisation Spectroscopy (CRIS) experiment at CERN-ISOLDE
/ Cocolios, T E (Manchester U.) ; de Groote, R P (Leuven U.) ; Billowes, J (Manchester U.) ; Bissell, M L (Manchester U. ; Leuven U.) ; Budinčević, I (Leuven U.) ; Day Goodacre, T (Manchester U. ; CERN) ; Farooq-Smith, G J (Manchester U.) ; Fedosseev, V N (CERN) ; Flanagan, K T (Manchester U.) ; Franchoo, S (Orsay, IPN) et al.
The Collinear Resonance Ionisation Spectroscopy (CRIS) experiment at CERN has achieved high-resolution resonance ionisation laser spectroscopy with a full width at half maximum linewidth of 20(1) MHz for 219,221 Fr, and has measured isotopes as short lived as 5 ms with 214 Fr. This development allows for greater precision in the study of hyperfine structures and isotope shifts, as well as a higher selectivity of single-isotope, even single-isomer, beams. [...]
2016 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 376 (2016) 284-287
Elsevier Open Access article: PDF;
In : 17th International Conference on Electromagnetic Isotope Separators and Related Topics, Grand Rapids, USA, 11 - 15 May 2015, pp.284-287
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4.
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Optimising the Collinear Resonance Ionisation Spectroscopy (CRIS) experiment at CERN-ISOLDE
/ Vernon, A R (Manchester U.) ; de Groote, R P (Jyvaskyla U. ; Leuven U.) ; Billowes, J (Manchester U.) ; Binnersley, C L (Manchester U.) ; Cocolios, T E (Leuven U.) ; Farooq-Smith, G J (Leuven U.) ; Flanagan, K T (Manchester U.) ; Garcia Ruiz, R F (Manchester U. ; CERN) ; Gins, W (Leuven U.) ; Koszorús, Á (Leuven U.) et al.
The CRIS experiment at CERN-ISOLDE is a dedicated laser spectroscopy setup for high-resolution hyperfine structure measurements of nuclear observables of exotic isotopes. Between 2015 and 2018 developments have been made to improve the background suppression, laser-atom overlap and automation of the beamline. [...]
2020 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 463 (2020) 384-389
In : 18th International Conference on Electromagnetic Isotope Separators and Related Topics, Geneva, Switzerland, 16 - 21 Sep 2018, pp.384-389
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5.
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Development of a sensitive setup for laser spectroscopy studies of very exotic calcium isotopes
/ Ruiz, R F Garcia (Leuven U. ; Manchester U.) ; Gorges, C (Darmstadt, Tech. Hochsch.) ; Bissell, M (Manchester U.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Gins, W (Leuven U.) ; Heylen, H (Leuven U.) ; Koenig, K (Darmstadt, Tech. Hochsch.) ; Kaufmann, S (Darmstadt, Tech. Hochsch.) ; Kowalska, M (CERN) ; Krämer, J (Darmstadt, Tech. Hochsch.) et al.
An experimental setup for sensitive high-resolution measurements of hyperfine structure spectra of exotic calcium isotopes has been developed and commissioned at the COLLAPS beam line at ISOLDE, CERN. The technique is based on the radioactive detection of decaying isotopes after optical pumping and state selective neutralization (ROC) (Vermeeren et al 1992 Phys. [...]
2017 - 19 p.
- Published in : J. Phys. G 44 (2017) 044003
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6.
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Quadrupole moment of $^{203}$Fr
/ Wilkins, S G (Manchester U.) ; Lynch, K M (CERN) ; Billowes, J (Manchester U.) ; Binnersley, C L (Manchester U.) ; Bissell, M L (Manchester U.) ; Cocolios, T E (KU Leuven, Dept. Phys. Astron.) ; Day Goodacre, T (Manchester U. ; CERN) ; de Groote, R P (KU Leuven, Dept. Phys. Astron.) ; Farooq-Smith, G J (KU Leuven, Dept. Phys. Astron.) ; Flanagan, K T (Manchester U.) et al.
The spectroscopic electric quadrupole moment of the neutron-deficient francium isotope 203Fr was measured by using high-resolution collinear resonance ionization spectroscopy (CRIS) at the CERN Isotope Separation OnLine Device (ISOLDE) facility. A remeasurement of the 207Fr quadrupole moment was also performed, resulting in a departure from the established literature value. [...]
2017 - 6 p.
- Published in : Phys. Rev. C 96 (2017) 034317
Fulltext: PDF;
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7.
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Combined high-resolution laser spectroscopy and nuclear decay spectroscopy for the study of the low-lying states in $^{206}$Fr, $^{202}$At, and $^{198}$Bi
/ Lynch, K M (CERN ; Leuven U.) ; Cocolios, T E (Leuven U. ; Manchester U.) ; Billowes, J (Manchester U.) ; Bissell, M L (Leuven U. ; Manchester U.) ; Budinčević, I (Leuven U.) ; Day Goodacre, T (Manchester U. ; CERN) ; de Groote, R P (Leuven U.) ; Farooq-Smith, G J (Leuven U. ; Manchester U.) ; Fedosseev, V N (CERN) ; Flanagan, K T (Manchester U.) et al.
High-resolution laser spectroscopy was performed on $^{206}$Fr with the collinear resonance ionization spectroscopy (CRIS) experiment at CERN-ISOLDE. The hyperfine structure and isotope shift of the ground, first isomeric and second isomeric states were measured. [...]
2016 - 9 p.
- Published in : Phys. Rev. C 93 (2016) 014319
APS Open Access article: PDF;
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8.
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A compact RFQ cooler buncher for CRIS experiments
/ Cooper, B S (Manchester U.) ; A Perrett, H (Manchester U.) ; Ricketts, C M (Manchester U.) ; Read, C (Manchester U.) ; Edwards, G (Manchester U.) ; Flanagan, K T (Manchester U.) ; Billowes, J (Manchester U.) ; Binnersley, C L (Manchester U.) ; Bissell, M L (Manchester U.) ; Cocolios, T E (Leuven U.) et al.
A compact radio frequency cooler buncher (RFQCB) is currently in development between The University of Manchester, KU Leuven and CERN. The device will be installed as part of the Collinear Resonance Ionisation Spectroscopy (CRIS) experiment at the Isotope separator On-line device (ISOLDE) at CERN. [...]
2019 - 8 p.
- Published in : Hyperfine Interact. 240 (2019) 52
Fulltext from Publisher: PDF;
In : 7th International Conference on Trapped Charged Particles and Fundamental Physics, Takamatsu, Japan, 30 Sep - 5 Oct 2018, pp.52
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9.
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Suitability test of a high beam quality Nd:YVO4 industrial laser for the ISOLDE RILIS installation.
/ Marsh, B (CERN) ; Fedosseev, V (CERN) ; Fink, D (CERN) ; Goodacre, T (CERN) ; Rothe, S (CERN) ; Seliverstov, M (U. Liverpool) ; Imai, N (KEK, Tanashi) ; Sjodin, M (GANIL) ; Rossel, R (Mainz U)
A multi-stage test of a Blaze 532-40-HE diode pumped Nd:YVO4 laser, supplied as a loan by Lumera Laser GmbH, has been performed at the ISOLDE RILIS installation. [...]
CERN-ATS-Note-2013-007 TECH.
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2013. - 13 p.
Full text
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10.
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First on-line application of the high-resolution spectroscopy laser ion source PI-LIST at ISOLDE
/ Heinke, Reinhard (CERN) ; Au, Mia (CERN ; Mainz U.) ; Bernerd, Cyril (CERN ; Leuven U.) ; Chrysalidis, Katerina (CERN) ; Cocolios, Thomas E (Leuven U.) ; Fedosseev, Valentin N (CERN) ; Hendriks, Isabel (CERN ; Lund U. (main)) ; Jaradat, Asar A H (CERN) ; Kaja, Magdalena (Mainz U., Inst. Phys.) ; Kieck, Tom (Darmstadt, GSI ; Helmholtz Inst., Mainz) et al.
We report on the development, characterization, and first application of a specialized resonance ionization laser ion source for high-resolution spectroscopy applications below usual hot cavity Doppler broadening limitations, for on-line experiments at CERN-ISOLDE. The new PI-LIST ion source comprises perpendicular laser/atom beam interaction in a radio-frequency quadrupole unit directly downstream the hot atomizer cavity. [...]
2023 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 541 (2023) 8-12
Fulltext: PDF;
In : 19th International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), Daejeon, Korea, 3 - 7 Oct 2022, pp.8-12
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