January 2017

Journal

Tracking rare-isotope beams with microchannel plates

By:
Rogers, A.; Sanetullaev, A.; Lynch, W.; Tsang, M.; Lee, J.; Bazin, D.; Coupland, D.; Henzi, V.; Henzlova, D.; Kilburn, M.; Wallace, M.; Youngs, M.; Delaunay, F.; Famiano, M.; Shapira, Dan ; Jones, K.; Schmitt, K.; Sun, Z.
Journal Name:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Page Number:
325-334
Volume:
795
Issue Number:
N/A
Publication Date:
January 2017
View DOI Listing:
https://doi.org/10.1016/j.nima.2015.05.070

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 Limes of ions at the reaction target. The current design is an adaptation of an assembly used for low-energy beams (similar to 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 Ni-56 beam show that the tracking system can achieve sub-nanosecond timing resolution and a position resolution of similar to 1 mm for beam intensities up to 5 x 10(5) pps. (C) 2015 Elsevier B.V. All rights reserved,