Electron detachment of super-excited porphyrin anions in an electrostatic ion storage ring

To study the photoexcitation and subsequent reactions of large molecular ions, anions of 5,10,15,20-tetraphenyl-21H,23H-porphine, which is a typical metal-free porphyrin, were produced and stored in an electrostatic ion storage ring at the Tokyo Metropolitan University. The circulating ions were merged using a pulsed laser, resulting in the production of super-excited anions, which eventually yielded neutral species. The decay profile deviated considerably from t-1 behavior, depending on the laser fluence and excitation wavelength

Measurements and 3D Monte Carlo simulation of MeV ion transmission through conical glass capillaries

International audienc

Simulation of MeV ion transmission through glass micro-capillaries

International audienc

Angular distribution of MeV heavy ions through tapered glass capillary: experiment and simulation

International audienc