| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8172372 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2015 | 6 Pages |
Abstract
The Preshower (PSh) detector [1] is a component of the DIRAC setup [2]. It is designed to identify and reject the huge eâe+ pairs background in the ÏÏ and KÏ pairs measurement produced in a hadronic atom ionization process. In the high energy region used for kaon detection, the small Nitrogen Cherenkov detector has low electron rejection efficiency. To increase the overall efficiency, a new two-layer scintillator Preshower detector has been developed and built. The new Preshower-Cherenkov combination ensures an electron rejection efficiency better than 99% in the momentum range 1-7Â GeV/c.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
M. Pentia, S. Aogaki, D. Dumitriu, D. Fluerasu, M. Gugiu, V. Yazkov,