BCAL Radiation Length Calculations

Document #:

GlueX-doc-439-v3

Document type:

Technical Note

Submitted by:

Zisis Papandreou

Updated by:

Zisis Papandreou

Document Created:

28 Feb 2005, 09:15

Contents Revised:

17 Apr 2005, 21:55

Metadata Revised:

17 Apr 2005, 21:56

Abstract:

Analytical calculations of the radiation length for the Barrel Calorimeter of the GlueX Project are presented. These show that the full thickness radiation length ranges from 18-20 X_0 depending on the thickness of the aluminum backing plate and the analytical formalism used.

Files in Document:

• radlen.pdf (127.9 kB)

Topics:

• Detector Hardware:BCAL

Authors:

• Rafael Hakobyan
• Nikolay Kolev
• Zisis Papandreou

Keywords:

barrel calorimeter calculations

Notes and Changes:

This version has a small correction to the calculation of the effective Z and A for the Pb/SciFi/Glue mixture, leading to more stable values of Xo for the three formalisms.