Tracking rare-isotope beams with microchannel plates
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. Furthermore, 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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- Michigan State Univ., East Lansing, MI (United States); Univ. of Massachusetts, Lowell, MA (United States)
- Michigan State Univ., East Lansing, MI (United States)
- Univ. de Caen, CNRS/IN2P3, Caen (France)
- Western Michigan Univ., Kalamazoo MI (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- Institute of Modern Physics, CAS, Lanzhou (China)
- Publication Date:
- Grant/Contract Number:
- AC05-00OR22725; R011065245; FG02-96ER40983
- Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 795; Journal Issue: C; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Research Org:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org:
- USDOE
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 43 PARTICLE ACCELERATORS; Microchanncl Plates; Rare-isotope beams; Tracking detector; Transfer reactions; PROJECTILE FRAGMENT SEPARATOR; SECONDARY-ELECTRON EMISSION; MEAN FREE PATHS; STOPPING POWERS; NUCLEAR BEAMS; HEAVY-IONS; POSITION; DETECTORS; FACILITY; SYSTEM
- OSTI Identifier:
- 1338520
- Alternate Identifier(s):
- OSTI ID: 1247258