Operation and Performance of the ASHIPH Counters at the KEDR Detector
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
Frontier detectors for frontier physics : 13th Pisa Meeting on Advanced Detectors
24-30 May 2015
,
La Biodola, Isola d'Elba
|
| Journal |
Nuclear Instruments and Methods in Physics Research Section A
ISSN: 0168-9002
|
| Output data |
Year: 2016,
Volume: 824,
Pages: 79-82
Pages count
: 4
DOI:
10.1016/j.nima.2015.10.105
|
| Tags |
Aerogel, Cherenkov threshold counters, Particle identification |
| Authors |
Barnyakov A.Yu.
1,3
,
Barnyakov M.Yu.
1,3
,
Bobrovnikov V.S.
1,3
,
Buzykaev A.R.
1,3
,
Danilyuk A.F.
2,3
,
Katcin A.A.
1,3,4
,
Kononov S.A.
1,3
,
Kravchenko E.A.
1,3
,
Kuyanov I.A.
1,3
,
Onuchin A.P.
1,3,4
,
Ovtin I.V.
1,3,4
,
Rodyakin V.A.
1
|
| Affiliations |
| 1 |
Budker Institute of Nuclear Physics, Acad. Lavrentiev Prospect 11, Novosibirsk 630090, Russia
|
| 2 |
Boreskov Institute of Catalysis, Acad. Lavrentiev Prospect 5, Novosibirsk 630090, Russia
|
| 3 |
Novosibirsk State University, St. Pirogova 2, Novosibirsk 630090, Russia
|
| 4 |
Novosibirsk State Technical University, Karl Marks Prospect 20, Novosibirsk 630073, Russia
|
|
Funding (5)
|
1
|
Council for Grants of the President of the Russian Federation
|
НШ-2479.2014.2
|
|
2
|
Russian Foundation for Basic Research
|
14-02-31401
|
|
3
|
Russian Foundation for Basic Research
|
14-02-00984
|
|
4
|
Russian Foundation for Basic Research
|
14-02-01011
|
|
5
|
Russian Foundation for Basic Research
|
15-02-03114
|
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 4σ at the momentum 1.2 GeV/c was obtained.