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in creator/contributor: "Tooker, J.F."  
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Initial tests and operation of a 110 GHz, 1 MW gyrotron with evacuated waveguide system on the DIII-D tokamak

Description: A gyrotron producing nominally 1 MW at 110 GHz has been installed at the DIII-D tokamak and operated in a program of initial tests with a windowless evacuated transmission line. The alignment and first test operation were performed in an air environment at atmospheric pressure. Under these conditions, the tube produced rf output in excess of 800 kW for pulse lengths greater than 10 msec and power near 500 kW for pulse lengths of about 100 msec into a free space dummy load. The gyrotron was oper… more
Date: August 1, 1996
Creator: Lohr, J.; Ponce, D. & Tooker, J.F.
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Partner: UNT Libraries Government Documents Department
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The DIII-D ECH multiple gyrotron control system

Description: DIII-D`s ECH upgrade with 1 MW, 110 GHz gyrotrons is ongoing, and with it, an upgrade of the control system. The ECH Multiple Gyrotron Control System uses software distributed among networked computers, interfaced to a programmable logic controller (PLC), the timing and pulse system, power supplies, vacuum and wave guide controls, and instrumentation. During DIII-D operations, the system will allow a chief and a co-operator to control and monitor a number of gyrotrons from different manufacture… more
Date: November 1, 1997
Creator: Ponce, D.; Lohr, J.; Tooker, J.F.; Cary, W.P. & Harris, T.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Status of the DIII-D 110 GHz ECH system

Description: The DIII-D program is presently commissioning the first NM gyrotron of a planned 3 MW, I 10 GHz electron cyclotron heating (ECH) system for off-axis electron heating and current drive. Advanced tokamak (AT) research in DIII-D and other tokamaks requires the ability to control the current density profile. ECH offers the ability to localize the heating and driven current in a controllable manner and is not dependent upon, the local plasma conditions, so it appears to be an ideal tool for AT resea… more
Date: June 1, 1996
Creator: Callis, R. W.; Lohr, J.; O`Neill, R. C.; Tooker, J. F. & Ponce, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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MUTURING ECRF TECHNOLOGY FOR PLASMA CONTROL

Description: OAK A271 MUTURING ECRF TECHNOLOGY FOR PLASMA CONTROL. Understanding of the physics of internal transport barriers (ITBs) is being furthered by analysis and comparisons of experimental data from many different tokamaks worldwide. An international database consisting of scalar and 2-D profile data for ITB plasmas is being developed to determine the requirements for the formation and sustainment of ITBs and to perform tests of theory-based transport models in an effort to improve the predictive ca… more
Date: September 1, 2002
Creator: Callis, R. W.; Cary, W. P.; Chu, S.; Doane, J. L.; Ellis, R. A.; Felch, K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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