Development of Shashlyk calorimeter for KOPIO

被引：23

作者：

Atoian, GS

Issakov, VV

Karavichev, OV

Karavicheva, TL

Poblaguev, AA

Zeller, ME

机构：

[1] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[2] Yale Univ, Dept Phys, New Haven, CT 06511 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2004年 / 531卷 / 03期

关键词：

Shashlyk calorimeter; Monte-Carlo simulation;

D O I：

10.1016/j.nima.2004.05.094

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A large size electromagnetic calorimeter with an energy resolution of 3%/root E (GeV) for 100-500 MeV photons is one of the keystone elements of the KOPIO experiment. In this paper we describe the method of optimization of the Shashlyk module to achieve the required energy resolution. To optimize the calorimeter module design, a model for simulation of the energy resolution was developed. It includes the effects of shower evolution, light collection in scintillator plates, light attenuation in fibers, quantum efficiency of the photo-detector, threshold and noise in the readout system. This model was adjusted using the results of a 0.5-2 GeV/ positron test beam study of a calorimeter prototype with an energy resolution of 4%/root E (GeV). Possible improvements of the Shashlyk energy resolution to 3%/root E (GeV), the level required by KOPIO experiment, are discussed. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：467 / 480

页数：14

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