A prototype high power pulse generator for the beam abort systems of CERN´s proposed 8 TeV collider LHC

Author

Schroeder, G. ; Vossenberg, E.B.

Author_Institution

CERN, Geneva, Switzerland

fYear

1990

fDate

26-28 Jun 1990

Firstpage

104

Lastpage

108

Abstract

The Large Hadron Collider (LHC) will be equipped with a beam abort system, able to rapidly and safely dispose of the beams at the end of a storage period and also in all emergency situations. The authors report on a prototype pulse generator to power the kicker magnets which extract the beam out of the LHC. The generators must produce a current pulse amplitude of up to 20 kA, a risetime of about 2 μs, and a flat-top duration of 89 μs. They are composed of fast pulse capacitors discharged by gas switches, high di/dt crowbar diode stacks, and thyristor-controlled current compensation networks. A simplified prototype generator has been constructed to very several important device characteristics, especially the turn-on behavior of the freewheel diodes and the turn-off properties of the blocking diodes. Some test results on the prototype are presented

Keywords

beam handling equipment; compensation; pulse generators; pulsed power technology; storage rings; thyristor applications; 2 mus; 20 kA; 8 TeV; 89 mus; CERN; Large Hadron Collider; beam abort systems; blocking diodes; crowbar diode stacks; current pulse amplitude; fast pulse capacitors; freewheel diodes; gas switches; high power pulse generator; kicker magnets; thyristor-controlled current compensation networks; turn-off properties; turn-on behavior; Character generation; Colliding beam devices; Diodes; Large Hadron Collider; Magnets; Prototypes; Pulse generation; Switched capacitor networks; Switches; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Modulator Symposium, 1990., IEEE Conference Record of the 1990 Nineteenth

Conference_Location

San Diego, CA

Type

conf

DOI

10.1109/MODSYM.1990.201039

Filename

201039