Tracking rare-isotope beams with microchannel plates

Autor: Rogers, A. M., Sanetullaev, A., Lynch, W. G., Tsang, M. B., Lee, J., Bazin, D., Coupland, D., Henzl, V., Henzlova, D., Kilburn, M., Wallace, M. S., Youngs, M., Delaunay, F., Famiano, M., Shapira, D., Jones, K. L., Schmitt, K. T., Sun, Z. Y.
Rok vydání: 2013
Předmět:
Druh dokumentu: Working Paper
Popis: A system of two microchannel-plate detectors has been successfully implemented for tracking projectile-fragmentation beams. The detectors provide interaction positions, angles, and arrival times of ions at the reaction target. The current design is an adaptation of an assembly used for low-energy beams ($\sim$1.4 MeV/nucleon). In order to improve resolution in tracking high-energy heavy-ion beams, the magnetic field strength between the secondary-electron accelerating foil and the microchannel plate had to be increased substantially. Results from an experiment using a 37-MeV/nucleon ${}^{56}$Ni beam show that the tracking system can achieve sub-nanosecond timing resolution and a position resolution of $\sim$1 mm for beam intensities up to $5\times10^{5}$ pps.
Databáze: arXiv