ESS Docs Document 164-v1

DocDB Home ]  [ Search ] [ Last 20 Days ] [ List Authors ] [ List Topics ] [ List Events ]

Beam Dynamics of the ESS RFQ

Document #:
ESS-doc-164-v1
Document type:
Tech Note
Submitted by:
Karin Rathsman
Updated by:
Karin Rathsman
Document Created:
07 Feb 2012, 12:19
Contents Revised:
07 Feb 2012, 12:19
Metadata Revised:
07 Feb 2012, 12:19
Viewable by:
  • Public document
Modifiable by:

Quick Links:
Latest Version

Abstract:
The ESS Radio-Frequency Quadrupole (RFQ) will accelerate and bunch proton beams from 75 keV at the source exit to 3 MeV before the Drift Tube Linac (DTL) entrance. The beam current is 50 mA (75 mA as an upgrade scenario) for 4 % duty cycle. The present document describes the design strategy and the beam dynamics optimization of the pole tip geometry profile. The proposed RFQ is a 4 vane-type structure running at 352.21 MHz of roughly 5 m in length divided in 5 segments of 1 m each. The peak electric fields on the vane surface has been limited to a Kilpatrick value [14] of 1.8. A transmission of more than 99 % is foreseen for the nominal current and high quality beams will be delivered to the subsequent RF structures of the linear accelerator (linac).
Topics:
DocDB Home ]  [ Search ] [ Last 20 Days ] [ List Authors ] [ List Topics ] [ List Events ]

DocDB Version 8.8.9, contact Document Database Administrators