Main Injector RF Requirements for a 1.0 Megawatt 120 GeV Proton Source

Document #:

Beams-doc-2253-v1

Document type:

Note

Submitted by:

Dave McGinnis

Updated by:

Dave McGinnis

Document Created:

30 Apr 2006, 20:57

Contents Revised:

30 Apr 2006, 20:57

DB Info Revised:

30 Apr 2006, 20:57

Abstract:

Beam loading will dominate the operation of the Main Injector RF system for 120 GeV beam powers greater than 700kW. This note outlines a simple calculation of the RF power requirements in the Main Injector for a 1.0 MW 120 GeV proton source described in Beams Document 1782.
Active beam loading compensation can achieve larger Robinson stability margins for less RF power than externally loading the RF cavities. It is possible to accelerate 1 MW of beam power with the current Main Injector RF system driven by a single tube and stay within the maximum rated specifications of the current power tetrode if active beam loading compensation is implemented and the power tetrodes are operated in Class C. It should be noted that the requirements for 700kW of beam power are not substantially different than the 1MW requirements. The two tubes per cavity configuration provides substantial margin in operating at or above 1 MW of beam power.

Files in Document:

• PDF file (MIRF.pdf, 709.6 kB)

Topics:

• Projects:SNuMi
• Main Injector:HLRF

Authors:

• Dave McGinnis

Keywords:

beam_loading rf