Operation and performance of the ASHIPH counters at the KEDR detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN: 0168-9002, Vol: 824, Page: 79-82
2016
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Article Description
In 2014 the fully installed ASHIPH (Aerogel, SHifter, PHotomultiplier) system began its operation in the KEDR experiment at the VEPP-4 M e+e− -collider. The system contains 1000 liters of aerogel with refractive index n=1.05 in 160 counters that are arranged in two layers. Cherenkov light collection is preformed by means of wavelength shifters (WLS). 160 Micro-Channel Plate (MCP) PMTs with multialkali photocathode are used as photodetectors. Efficiency of relativistic particles detection was measured with e+e−→e+e− events and cosmic muons. Detection efficiency for under-threshold particles was measured with cosmic muons. From these data π/K -separation of 4 σ at the momentum 1.2 GeV/c was obtained.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0168900215013443; http://dx.doi.org/10.1016/j.nima.2015.10.105; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84947326656&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0168900215013443; https://dx.doi.org/10.1016/j.nima.2015.10.105
Elsevier BV
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