Use of Large-Area Photodiodes for Improving the Characteristics of an Electromagnetic Calorimeter Based on Lead Tungstate Crystals


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It is shown that an increase in the area of photodetectors allows the PHOS electromagnetic calorimeter of the ALICE experiment to operate at room temperature with better spectrometric characteristics. The linearity of the calorimeter response has been investigated in the 1–110 GeV energy range using both Hamamatsu S8664-1010 avalanche photodiodes with a large area (10 × 10 mm2) and arrays of MPPC Hamamatsu S12572-015C silicon photomultipliers with a sensitive area of 6 × 6 mm2. The calorimeter based on avalanche photodiodes is linear in the energy range under investigation compared to a calorimeter composed of silicon-photomultiplier arrays.

作者简介

K. Balygin

Kurchatov Institute National Research Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 123182

M. Ippolitov

Kurchatov Institute National Research Center

编辑信件的主要联系方式.
Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 123182

A. Klimov

Kurchatov Institute National Research Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 123182

V. Lebedev

Kurchatov Institute National Research Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 123182

V. Manko

Kurchatov Institute National Research Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 123182

E. Meleshko

Kurchatov Institute National Research Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 123182

Yu. Sibiriak

Kurchatov Institute National Research Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 123182

A. Akindinov

Alikhanov Institute for Theoretical and Experimental Physics

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Moscow, 117218

V. Izucheev

Logunov Institute for High Energy Physics

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Protvino, Moscow oblast, 142281

V. Arefiev

Joint Institute for Nuclear Research

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Dubna, Moscow oblast, 141980

A. Vodopyanov

Joint Institute for Nuclear Research

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Dubna, Moscow oblast, 141980

N. Gorbunov

Joint Institute for Nuclear Research

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Dubna, Moscow oblast, 141980

N. Kuzmin

Joint Institute for Nuclear Research

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Dubna, Moscow oblast, 141980

P. Nomokonov

Joint Institute for Nuclear Research

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Dubna, Moscow oblast, 141980

Yu. Petukhov

Joint Institute for Nuclear Research

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Dubna, Moscow oblast, 141980

I. Rufanov

Joint Institute for Nuclear Research

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Dubna, Moscow oblast, 141980

D. Budnikov

Russian Federal Nuclear Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Sarov, Nizhny Novgorod oblast, 607188

O. Vikhlyantsev

Russian Federal Nuclear Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Sarov, Nizhny Novgorod oblast, 607188

V. Demanov

Russian Federal Nuclear Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Sarov, Nizhny Novgorod oblast, 607188

N. Zavyalov

Russian Federal Nuclear Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Sarov, Nizhny Novgorod oblast, 607188

A. Kuryakin

Russian Federal Nuclear Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Sarov, Nizhny Novgorod oblast, 607188

A. Tumkin

Russian Federal Nuclear Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Sarov, Nizhny Novgorod oblast, 607188

S. Filchagin

Russian Federal Nuclear Center

Email: Mikhail.Ippolitov@cern.ch
俄罗斯联邦, Sarov, Nizhny Novgorod oblast, 607188

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