# Instrumentation for Colliding Beam Physics (INSTR-17)

27 February 2017 to 3 March 2017
Budker Institute of Nuclear Physics
Asia/Novosibirsk timezone

## Beam energy measurement system at BEPCII

27 Feb 2017, 14:50
20m
Contributed Oral Colliders and detector integration

### Speaker

Dr Jianyong Zhang (Institute of High Energy Physics, CAS)

### Description

The beam energy measurement system (BEMS) for Beijing electron positron collider (BEPCII) is introduced. It is based on the measurement of Compton back scattered photons. The relative systematic uncertainty of beam energy measurement is estimated as $2*10^{-5}$. Some upgradations for BEMS are also introduced.

### Primary author

Dr Jianyong Zhang (Institute of High Energy Physics, CAS)

 Slides