Title :
A modular timing system for megawatt gyrotrons
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
fDate :
30 Sep-3 Oct 1991
Abstract :
A new timing system has been designed to meet the requirements for the one megawatt test set (MWTS). This test set is a system of power supplies, support systems, controls, and monitors that will be used for the development of 1-MW gyrotrons. The purpose of the timing system is to provide timing signals for control of the gyrotron´s cathode, anode, and heater power supplies as well as oscilloscope, digitizer, and other control or diagnostic triggers. Some unique timing requirements include four main operating modes: single pulse, repetitive pulse, continuous wave (CW), and CW cathode with repetitively pulsed anode. Timing adjustments can be made while the tube is running with no adverse effects. This modular, distributed timing system is implemented using two CAMAC modules: the master timing controller and the two channel timing generator. A single master timing controller provides real-time control and synchronization for all timing generators in the system. The timing generators provide triggers having adjustable delay and duration to the various system components
Keywords :
CAMAC; Tokamak devices; distributed control; fusion reactor instrumentation; fusion reactor theory and design; gyrotrons; timing circuits; 1 MW; CAMAC modules; continuous wave; diagnostic triggers; distributed timing system; master timing controller; megawatt gyrotrons; megawatt test set; modular timing system; power supplies; real-time control; repetitive pulse; single pulse; support systems; synchronization; two channel timing generator; Anodes; Cathodes; Control systems; Gyrotrons; Oscilloscopes; Power supplies; Pulsed power supplies; System testing; Temperature control; Timing;
Conference_Titel :
Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0132-3
DOI :
10.1109/FUSION.1991.218717