Tests of FARICH Prototype with Precise Photon Position Detection
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
8th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2013)
02-06 Dec 2013
,
Hayama, Kanagawa
|
| Journal |
Nuclear Instruments and Methods in Physics Research Section A
ISSN: 0168-9002
|
| Output data |
Year: 2014,
Volume: 766,
Pages: 88-91
Pages count
: 4
DOI:
10.1016/j.nima.2014.04.086
|
| Tags |
Aerogel, Cherenkov counter, Particle identification, Ring imaging |
| Authors |
Barnyakov A.Yu.
1
,
Barnyakov M.Yu.
1,3
,
Basok I.Yu.
1
,
Blinov V.E.
1,3
,
Bobrovnikov V.S.
1
,
Borodenko A.A.
1
,
Buzykaev A.R.
1
,
Danilyuk A.F.
4
,
Degenhardt C.
6
,
Dorscheid R.
6
,
Finogeev D.A.
5
,
Frach T.
6
,
Gulevich V.V.
1
,
Karavicheva T.L.
5
,
Kasyanenko P.V.
1
,
Kononov S.A.
1,2
,
Korda D.V.
1,3
,
Kravchenko E.A.
1,2
,
Kudryavtsev V.N.
1
,
Kurepin A.B.
5
,
Kuyanov I.A.
1
,
Muelhens O.
6
,
Onuchin A.P.
1,3
,
Ovtin I.V.
1,3
,
Podgornov N.A.
1,3
,
Predein A.Yu.
4
,
Prisekin V.G.
1
,
Protsenko R.S.
4
,
Razin V.I.
5
,
Reshetin A.I.
5
,
Schulze R.
6
,
Shekhtman L.I.
1,2
,
Talyshev A.A.
1,2
,
Usenko E.A.
5
,
Zwaans B.
6
|
| Affiliations |
| 1 |
Budker Institute of Nuclear Physics SB RAS, Novosibirsk, Russia
|
| 2 |
Novosibirsk State University, Novosibirsk, Russia
|
| 3 |
Novosibirsk State Technical University, Novosibirsk, Russia
|
| 4 |
Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
|
| 5 |
Institute of Nuclear Research RAS, Moscow, Russia
|
| 6 |
Philips Digital Photon Counting, Aachen, Germany
|
|
Funding (2)
|
1
|
Президиум СО РАН
|
103
|
|
2
|
The Ministry of Education and Science of the Russian Federation
|
|
In June 2012 a FARICH prototype from Philips Digital Photon Counting (PDPC) based on a photon camera with dimensions of 200×200 mm has been tested at CERN. Remarkable particle separation has been achieved with a 4-layer aerogel sample: the π /K separation at a 6 GeV/c momentum is 3.5σ , the μ/π separation is 5.3σ at 1 GeV/c. The analysis of the data has shown that the main contribution to the accuracy of the ring radius measurement comes from aerogel. The development of focusing aerogels is proceeding in two main directions: tuning of production technology of multilayer blocks and development of a new production method with continuous density (refractive index) gradient along the block depth. The beam test was carried out in December 2012–January 2013 at the electron beam test facility at the VEPP-4 M e+e− collider. The goal of this test was to measure different single layer and focusing aerogel samples, both multilayer and gradient. Aerogel samples were tested with a PDPC FARICH prototype. A part of DPC SPADs in each pixel was disabled to form an active area of 1×1 mm2. The collected data proved that gradient aerogel samples focus Cherenkov light.