Klystron modulator operation and upgrades for the APS linac

Author

Russell, Thomas J. ; Cours, Alexander

Author_Institution

Adv. Photon Source, Argonne Nat. Lab., IL, USA

Volume

3

fYear

1995

fDate

1-5 May 1995

Firstpage

1559

Abstract

The Advanced Photon Source (APS) linac requires five 100-MW modulators to achieve its required energy. In-house construction of these modulators was under an extremely compressed time schedule and, while the original design was successful, it had a few shortcomings. The operation of the modulators was hindered by excessively sensitive controls and overheating during the hot summer months. The system underwent minor changes that resulted in major improvements. Additionally, improvements have been made to the high voltage circuits to improve the rise time of the output pulse shape, reduce the initial ringing of the pulse, and enhance the reliability of the system. This paper will outline the changes and explain the results of the improvements

Keywords

accelerator RF systems; electron accelerators; klystrons; modulators; 100 MW; APS linac; Advanced Photon Source; high voltage circuits; klystron modulator operation; output pulse shape; upgrades; Clamps; Control systems; Filtering; Klystrons; Linear particle accelerator; Pulse circuits; Pulse shaping methods; Space heating; Switches; Temperature dependence;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.505285

Filename

505285