Testbeam results for a Shashlik calorimeter with longitudinal segmentation

Author

Ask, S. ; Benvenuti, A.C. ; Britvich, I. ; Camporesi, T. ; Checchia, P. ; Feniouk, A. ; Hedberg, V. ; Lishin, V. ; Margoni, M. ; Mazzucato, M. ; Obraztsov, V. ; Paganoni, M. ; Poliakov, V. ; Simonetto, F. ; Terranova, F. ; Vlassov, E.

Author_Institution

Dipartimento di Fisica, Bologna Univ., Italy

Volume

48

Issue

4

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

1127

Lastpage

1131

Abstract

In the frame of research and development for electromagnetic calorimetry at future e⁺e^- linear colliders, different techniques have been studied to implement longitudinal segmentation in Shashlik calorimeters. Two prototypes with 5×5 cm ² lead/scintillator towers and readout by means of wavelength-shifting fibers have been built. The longitudinal segmentation of the shower is achieved by modifying the front part of the detector. In the first prototype, vacuum photodiodes have been inserted laterally for the first eight X₀, while in the second prototype a slow scintillator has been used in the first five X ₀. Both of the prototypes have been exposed to beam at CERN. The performance in term of energy resolution, spatial resolution, and e/π separation are described

Keywords

electron detection; particle calorimetry; solid scintillation detectors; Shashlik calorimeter; electromagnetic calorimetry; energy resolution; lead/scintillator towers; longitudinal segmentation; spatial resolution; vacuum photodiodes; wavelength-shifting fibers; Assembly; Calorimetry; Energy resolution; Optical fibers; Photodiodes; Physics; Poles and towers; Prototypes; Sampling methods; Testing;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.958736

Filename

958736