A5021907338- Particle accelerators and beam dynamics
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Particle Accelerators and Free-Electron Lasers
- Nuclear physics research studies
- Mass Spectrometry Techniques and Applications
- Magnetic confinement fusion research
- Superconducting Materials and Applications
- Plasma Diagnostics and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear reactor physics and engineering
- Ion-surface interactions and analysis
- Electron and X-Ray Spectroscopy Techniques
- Astronomical and nuclear sciences
- Particle Detector Development and Performance
- Muon and positron interactions and applications
- Boron Compounds in Chemistry
- Radiation Therapy and Dosimetry
- Laser-induced spectroscopy and plasma
- Laser-Plasma Interactions and Diagnostics
- Advanced Data Storage Technologies
- Medical Imaging Techniques and Applications
- Scientific Measurement and Uncertainty Evaluation
- Radiation Detection and Scintillator Technologies
- Advanced Chemical Physics Studies
TRIUMF
2008-2025
University of Victoria
2021-2025
Goethe University Frankfurt
1994-2020
GSI Helmholtz Centre for Heavy Ion Research
2007-2017
CEA Paris-Saclay - Etablissement de Saclay
2011-2016
CEA Paris-Saclay
2011-2016
Helmholtz International Center for FAIR
2016
Ludwig-Maximilians-Universität München
2002-2014
Institut für Technische und Angewandte Physik (Germany)
2013
Technical University of Darmstadt
2004-2013
The Miniball germanium detector array has been operational at the REX (Radioactive ion beam EXperiment) post accelerator Isotope Separator On-Line facility ISOLDE CERN since 2001. During last decade, a series of successful Coulomb excitation and transfer reaction studies have performed with this array, utilizing unique high-quality radioactive beams which are available ISOLDE. In article, an overview is given technical details full setup, including description $\gamma$ -ray particle...
The reduced transition probabilities, B(E2; 0(gs)+ -->2(1)+), have been measured in the radioactive isotopes (108,106)Sn using subbarrier Coulomb excitation at REX-ISOLDE facility CERN. Deexcitation gamma rays were detected by highly segmented MINIBALL Ge-detector array. results, B(E2;0(gs)+ -->2(1)+)=0.222(19)e2b2 for 108Sn and 0(gs)+-->2(1)+)=0.195(39)e2b2 106Sn determined relative to a stable 58Ni target. resulting B(E2) values are approximately 30% larger than shell-model predictions...
The laser-driven acceleration of protons from thin foils irradiated by hollow high-intensity laser beams in the regime target normal sheath (TNSA) is reported for first time. use aims at reducing initial emission solid angle TNSA source, due to a flattening electron rear side. experiments were conducted PHELIX facility GSI Helmholtzzentrum für Schwerionenforschung GmbH with intensities range 1018 W cm−2 1020 cm−2. We observed an average reduction half opening (3.07±0.42)° or (13.2±2.0)% when...
The first excited ${2}^{+}$ state of the unstable isotope $^{110}\mathrm{Sn}$ has been studied in safe Coulomb excitation at $2.82\text{ }\text{ }\mathrm{MeV}/u$ using MINIBALL array REX-ISOLDE post accelerator CERN. This is measurement reduced transition probability this method for a neutron deficient Sn isotope. strength approach lies excellent peak-to-background ratio that achieved. extracted probability,...
At the radioactive ion beam facility REX-ISOLDE, neutron-rich zinc isotopes were investigated using low-energy Coulomb excitation. These experiments have resulted in $B(E2,{2}_{1}^{+}\ensuremath{\rightarrow}{0}_{1}^{+})$ values $^{74\ensuremath{-}80}\mathrm{Zn}$, $B(E2,{4}_{1}^{+}\ensuremath{\rightarrow}{2}_{1}^{+})$ $^{74,76}\mathrm{Zn}$ and determination of energy first excited ${2}_{1}^{+}$ states $^{78,80}\mathrm{Zn}$. The produced by high-energy proton- $(A=74,76,80)$ neutron- $(A=78)$...
An activity of the TRIUMF automatic beam tuning program, Bayesian optimization for Ion Steering (BOIS) method has been developed to perform corrective centroid steering beams at ISAC facility. BOIS exclusively controls steerers correction after transverse optics have set according theory. The is fully online, easy deploy, and tested in low energy post-accelerated ISAC, achieving results comparable human operators. scaleBOIS boundBOIS are naïve proof-of-concept solutions preferably select...
Neutron-rich, radioactive Zn isotopes were investigated at the Radioactive Ion Beam facility REX-ISOLDE (CERN) using low-energy Coulomb excitation. The energy of 2(1)+ state in 78Zn could be firmly established and for first time 2+ --> 0(1)+ transition 80Zn was observed 1492(1) keV. B(E2,2(1)+ 0(1)+) values extracted (74,76,78,80)Zn compared to large scale shell model calculations. With only two protons outside Z=28 proton core, is lightest N=50 isotone which spectroscopic information has...
We report on the first low-energy Coulomb excitation measurements with radioactive Ipi=6- beams of odd-odd nuclei 68,70Cu. The were produced at ISOLDE, CERN and post-accelerated by REX-ISOLDE to 2.83 MeV/nucleon. Gamma rays detected MINIBALL spectrometer. 6- beam was used study multiplet states (3-, 4-, 5-, 6-) arising from pi2p3/2 nu 1g9/2 configuration. 4- state populated via B(E2;6--->4-) value determined in both nuclei. results obtained illustrate fragile stability Z=28 shell N=40...
Each year more than 3000 Canadians are diagnosed with brain cancers like glioblastoma multiforme or recurrent head and neck cancers, which difficult to treat conventional radiotherapy techniques. One of the most clinically promising treatments for these is boron neutron capture therapy (BNCT). This procedure involves selectively introducing a delivery agent into tumor cells irradiating them beam, kills cancer due high-linear energy transfer radiation produced by 10 B(n,α) 7 Li reaction. The...
We report on the first radioactive beam experiment performed at recently commissioned REX-ISOLDE facility CERN in conjunction with highly efficient gamma spectrometer MINIBALL. Using 30Mg ions accelerated to an energy of 2.25 MeV/u together a thin (nat)Ni target, Coulomb excitation excited 2+ states projectile and target nuclei well below barrier was observed. From measured relative deexcitation gamma-ray yields B(E2;0(+)gs-->2(+)1) value determined be 241(31)e2 fm4. Our result is lower than...
The 40 years old GSI-UNILAC (Universal Linear Accelerator) as well the heavy ion synchrotron SIS18 will serve a high current injector for new FAIR (Facility Antiproton and Ion Research) SIS100. In context of an advanced machine investigation program in combination with ongoing UNILAC upgrade program, uranium beam intensity record (11.5 emA, ${\mathrm{U}}^{29+}$) at very brilliance was achieved recently experiment campaign. This is important step paving way to fulfill requirements. Results...
Using the REX-ISOLDE facility at CERN Coulomb excitation cross sections for ${0}_{\mathrm{gs}}^{+}\ensuremath{\rightarrow}{2}_{1}^{+}$ transition in $\ensuremath{\beta}$-unstable isotopes $^{100,102,104}\mathrm{Cd}$ have been measured first time. Two different targets were used, which allows extraction of static electric quadrupole moments $Q({2}_{1}^{+})$ $^{102,104}\mathrm{Cd}$. In addition to $B(E2)$ values $^{102,104}\mathrm{Cd}$, a experimental limit value $^{100}\mathrm{Cd}$ is...
At the GSI accelerator complex, behind universal linear UNILAC and synchrotron SIS, highly charged ions up to are produced at 400 MeV/nucleon. When this beam is sent through a copper foil all or nearly remaining electrons stripped. The HITRAP facility, combination of decelerator cryogenic Penning trap, built decelerate those almost rest provide them for experiments. In number commissioning times, deceleration in ESR, extraction, bunching and, finally, 6 keV/nucleon has been shown. steps,...
The isotopes Cd122,124,126 were studied in a “safe” Coulomb-excitation experiment at the radioactive ion-beam facility REX-ISOLDE CERN. reduced transition probabilities B(E2;0g.s.+→21+) and limits for quadrupole moments of first 2+ excited states three determined. onset collectivity vicinity Z=50 N=82 shell closures is discussed by comparison with model beyond mean-field calculations.2 MoreReceived 20 December 2013DOI:https://doi.org/10.1103/PhysRevC.89.014313©2014 American Physical Society
Flat beams feature unequal emittances in the horizontal and vertical phase space. Such were created successfully electron machines by applying effective stand-alone solenoid fringe fields gun. Extension of this method to ion was proposed conceptually. The present paper is on decoupling capabilities an beam emittance transfer line. line provides a single-knob tool partition rms emittances, while keeping product two constant as well transverse Twiss parameters (${\ensuremath{\alpha}}_{x,y}$...