PEP Subsystem Simulation Web Page

Introduction

The Bogus simulation of the PEP beam pipe is highly detailed. It includes the beryllium beam pipe with its internal water cooling channels, gold and nickel and paint coatings, aluminum and stainless steel flanges, and tantalum synchrotron radiation shields. The PEP magnets B1 and Q1 are also included along with the ion pump between them.

In the detector model (used in reconstruction) the beam pipe is much simpler, consisting of a simple tube with the correct mean material density.

There are currently no detector elements in PEP used in simulation, hence no sensitive detector code is required.

Simulation code

• BgsPepSim - builds the PEP geometry
• PepSimGeom - defines the primitive geometry objects used to build PEP
• PepSimGeomP - sets up the persistent containers, proxies and loaders needed to store and retrieve geometry parameters from the database