Compensation condition in Si/U hadronic calorimeter

Author

Lemeilleur, F. ; Borchi, E. ; Fretwurst, E. ; Lindstroem, G. ; Lamarche, L. ; Leroy, C. ; Furetta, C. ; Pensotti, S. ; Rancoita, P.G. ; Vismara, L. ; Seidman, A. ; Giubellino, P. ; Ramello, L. ; Riccati, L. ; Barbiellini, G. ; Penzo, A.

Author_Institution

CERN, Switzerland

Volume

36

Issue

1

fYear

1989

fDate

2/1/1989 12:00:00 AM

Firstpage

331

Lastpage

333

Abstract

The first prototype of a Si/U hadronic calorimeter was designed and developed. It consists of silicon mosaics, located next to uranium plates 10-mm thick and 50×50 cm² in area. The total calorimeter depth is six interaction lengths. Measurements performed with the Si/U calorimeter at the CERN PS (at 2, 4 and 6 GeV) support the view that the signal equalization, which provides the condition e /h=1, can be obtained with a silicon readout by tuning the calorimeter response to the electromagnetic component of the hadronic shower. This can be achieved by inserting, in front and/or back of the silicon detector, low-Z absorber (G10 plates). The fiberglass absorbs soft electrons, thus reducing the total energy sensed. The low- Z absorber is used to reduce the response of the electromagnetic component in a hadronic shower, while the pure hadronic component is expected to be only slightly affected

Keywords

calorimeters; semiconductor counters; G10 plates; Si; Si/U hadronic calorimeter; U; compensation condition; low-Z absorber; signal equalization; Collaboration; Electromagnetic radiation; Energy measurement; Energy resolution; Performance evaluation; Prototypes; Radiation detectors; Riccati equations; Sampling methods; Silicon radiation detectors;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.34458

Filename

34458