Current News

• 2021/08/17

  Collinear Laser Spectroscopy in an MR-TOF

  First studies of collinear laser spectroscopy in a multi-reflection time-of-flight mass spectrometer adapted for laser spectroscopy appeared in the journal Nuclear Instruments and Methods A. It presents first studies with magnesium isotopes that were performed in the standard fly-by technique go

• 2021/07/29

  Wavelength-meter calibration across the Atlantic

  

  To support collinear laser spectroscopy measurements of short-lived proton-rich nickel isotopes with the BECOLA experiment at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU), we measured absolute transition frequencies of three iodine lines in the 700-nm wavelength range with our frequency comb. Using similar setups on both sides of the Atlantic go

• 2021/07/19

  Hendrik Bodnar has completed his Bachelor Thesis

  

  Hendrik Bodnar has completed his Bachelor Thesis with the presentation „Analysis of Trapping Times of various Charge States of Ar Ions in a Penning Trap“. Congratulations! go

• 2021/07/02

  Single-Particle Character above Tin-132

  

  The measurements of the magnetic and quadrupole moments of the ground state in ¹³³Sb and an isomer in ¹³⁴Sb with nuclear spin I=7 were performed at ISOLDE by collinear laser spectroscopy within the COLLAPS collaboration go

• 2021/06/21

  COALA Beamline extended

  

  The COALA Beamline was extended with a switchyard that will allow us to connect several ion sources simultaneously to the apparatus, providing a higher flexibility for laser spectroscopy. An electron beam ion source (EBIS) will be installed at one of the additional arms end of September. go

• 2021/06/07

  Felix Sommer defends his PhD thesis successfully

  

  Felix Sommer defended his Dissertation entitled “Nuclear Charge Radii across the N=Z=28 Shell Closure in Nickel Isotopes”. Congratulations from the whole LaserSphere team Felix! go

• 2021/05/21

  GHG-Awards for Members of LaserSphere

  

  Prices of the Gerhard-Herzberg Gesellschaft (GHG) have been awarded during todays Physics Colloquium at TU Darmstadt. Members of our working groups have been distinguished in almost all categories:
  Manuel Simon, who performed his bachelor thesis research in our group, was awarded a B.Sc. Study Price go

• 2021/05/11

  Offline measurements on stable nickel isotopes are published

  

  Our paper on “Isotope-shift measurements and King-fit analysis in nickel isotopes” has been published in Physical Review C. Off-line measurements of stable nickel isotopes were performed at the BECOLA setup at MSU and are in good agreement with previous measurements at COLLAPS. go

• 2021/05/05

  New DFG project granted

  

  The German Research Foundation (DFG) supports our Developments towards precise high-voltage measurements for three years. Our application entitled “Laser-Based High-Voltage Metrology with 1 ppm Accuracy” has been fully funded. go

• 2021/05/03

  Laser Spectroscopy of C3+ at half the speed of light

  

  Spectroscopic results for the two 2s-2p resonance lines in lithium-like carbon ions appeared today in the journal Scientific Reports. The ions were stored in the experimental storage ring ESR at GSI at about half the speed of light and a new continuous-wave UV laser system go