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|a (TOE)ost6541932
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|a (TOE)6541932
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|a GDWR
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|a E 1.99: conf-9009200--17
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|a E 1.99:la-ur-90-3046
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|a E 1.99: conf-9009200--17
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|a Increasing output power of an 850 MHz tetrode with a floating-deck modulator
|h [electronic resource]
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| 260 |
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|a Washington, D.C. :
|b United States. Dept. of Commerce ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
|c 1990.
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| 300 |
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|a Pages: (4 p) :
|b digital, PDF file.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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|a Published through the Information Bridge: DOE Scientific and Technical Information.
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| 500 |
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|a 01/01/1990.
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| 500 |
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|a "la-ur-90-3046"
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| 500 |
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|a " conf-9009200--17"
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|a "DE91000433"
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| 500 |
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|a 1990 LINAC conference, Albuquerque, NM (USA), 10-14 Sep 1990.
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|a Rees, D.; Friedrichs, C.
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|a Designers of high-power amplifiers generally regard the region above 300 MHz as a domain dominated by velocity-modulated (klystron/TWT) devices. However, as the power requirements diminish, there are attractive alternatives. The high-power 850-MHz requirements of the ground test accelerator (GTA) program can be filled by 1-MW klystrons, but it would be more efficient to use a lower-power device for a 50-kW requirement. To meet the 850-MHz medium-power requirements, Los Alamos National Laboratory is developing an 850-MHz tetrode amplifier. These amplifiers will provide rf power to the momentum compactor and bunch rotator cavities of the GTA. Available tubes provide only a limited safety margin for a low-risk design at the power levels and duty factor required for GTA cavities. At 850 MHz, the output power capability of available tubes is reduced because of transit time effects and limited anode voltage holdoff. Pulsing the anode of the output tetrode amplifier will allow higher output power with minimum design risk. A floating-deck modulator acts as a high-voltage/high-current switch, so voltage is applied to the anode of the gridded tube only during the rf pulse. The anode voltage holdoff capability of the tube is substantially enhanced by operating in this mode. This paper will describe the design of the floating deck modulator and its impact on the design risk of the 850-MHz tetrode amplifier.
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| 536 |
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|b W-7405-ENG-36.
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| 650 |
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|a Design.
|2 local.
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|a Electronic Equipment.
|2 local.
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| 650 |
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|a Klystrons.
|2 local.
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| 650 |
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|a Amplifiers.
|2 local.
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| 650 |
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|a Rf Systems.
|2 local.
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| 650 |
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|a Microwave Amplifiers.
|2 local.
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| 650 |
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|a Microwave Tubes.
|2 local.
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| 650 |
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|a Equipment.
|2 local.
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| 650 |
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|a Electron Tubes.
|2 local.
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| 650 |
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7 |
|a Accelerators.
|2 local.
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| 650 |
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7 |
|a Microwave Equipment.
|2 local.
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| 650 |
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7 |
|a Linear Accelerators.
|2 local.
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| 650 |
|
7 |
|a Particle Accelerators.
|2 edbsc.
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| 710 |
2 |
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|a Los Alamos National Laboratory.
|4 res.
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| 710 |
1 |
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|a United States.
|b Department of Commerce.
|4 spn.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Energy Research.
|4 spn.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
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| 856 |
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|u http://www.osti.gov/servlets/purl/6541932-PWV2MH/
|z Online Access
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| 907 |
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|a .b59795797
|b 03-06-23
|c 05-26-10
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| 998 |
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|a web
|b 05-26-10
|c f
|d m
|e p
|f eng
|g dcu
|h 0
|i 1
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| 956 |
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|a Information bridge
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| 999 |
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|i ab290021-805f-5406-b535-d89001038905
|s 6a7d9b2a-f112-5b31-8273-4ee63aa8fa8d
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| 952 |
f |
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|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99: conf-9009200--17
|h Superintendent of Documents classification
|i web
|n 1
|
