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Tracking rare-isotope beams with microchannel plates

Abstract : 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 (~ 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 56Ni beam show that the tracking system can achieve sub-nanosecond timing resolution and a position resolution of ~1 mm for beam intensities up to 5 X 10{$^5} PPS.
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http://hal.in2p3.fr/in2p3-01163177
Contributor : Sandrine Guesnon <>
Submitted on : Friday, June 12, 2015 - 11:38:40 AM
Last modification on : Tuesday, November 24, 2020 - 11:30:12 AM

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A.M. Rogers, A. Sanetullaev, W.G. Lynch, M.B. Tsang, J. Lee, et al.. Tracking rare-isotope beams with microchannel plates. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2015, 795, pp.325-334. ⟨10.1016/j.nima.2015.05.070⟩. ⟨in2p3-01163177⟩

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