Development of a beam ion velocity detector for the heavy ion beam probe

Electron Loss Cross Sections for a Heavy Ion Beam Probe

Electron loss cross sections of Au and Au2+ by electron and proton impact are calculated by using respectively the Lotz formula and the LOSS and CAPTURE computer codes. The corresponding rate coefficients have also been calculated. Using this information, the signal levels of heavy ion beam probe in the Large Helical Device are estimated. The calculated beam currents at the detector position ar...

p-CVD diamond heavy-ion beam detector with integrated electronics

For the new ToF Barrel of FOPI, [1], a new beam detector based on polycrystalline-CVD diamond was developed. The new device replaces the existing beam monitoring system which comprise a ToF Start detector and a beam-halo detector, both built from plastic scintillator material. However, since the employed diamonds are not sensitive to minimum ionizing particles the new device can be used efficie...

Beam Imaging Diagnostics for Heavy Ion Beam Fusion Experiments*

We are developing techniques for imaging beams in heavy-ion beam fusion experiments in the HIF-VNL in 2 to 4 transverse dimensions. The beams in current experiments range in energy from 50 keV to 2 MeV, with beam current densities from <10 to 200 mA/cm, and pulse lengths of 4 to 20 μs. The beam energy will range up to 10 MeV in near-future beam experiments. The imaging techniques, based on kapt...

Heavy ion beam model for radiobiology.

An ad hoc model of energetic heavy ion beams, including secondary and tertiary particles, has been constructed for predicting radiobiological experiments. While the beam model is relatively primitive, it yields depth-dose and depth-radiobiological calculations in good agreement with experiment upstream of the Bragg peak. Beyond the peak, the model is somewhat coarse grained and seems to underes...

Beam-beam observations in the Relativistic Heavy Ion Collider