Proceedings ArticleDOI
Progress on new high power RF system for lansce DTL
John Lyles,S. Archuletta,J. Davis,Daniel Rees,P. Torrez,D. Baca +5 more
- pp 2382-2384
TLDR
In this article, a new 201.25 MHz RF system is developed for the LANSCE proton drift tube linac (DTL) and a planned upgrade will replace parts of the DTL RF system with new generation components, which will reduce the total number of electron power tubes from twenty-four to seven in the RF power plant.Abstract:
A new 201.25 MHz RF system is being developed for the LANSCE proton drift tube linac (DTL). A planned upgrade will replace parts of the DTL RF system with new generation components. When installed for the LANSCE-R project, the new system will reduce the total number of electron power tubes from twenty-four to seven in the RF power plant. The 3.4 MW final power amplifier will use a Thales TH628 Diacrodereg. This state- of-the-art device eliminates the large anode modulator of the present triode system, and will be driven by a new tetrode intermediate power amplifier. In this mode of operation, this intermediate stage will provide 150 kW of peak power. The first DTL tank requires up to 400 kW of RF power, which will be provided by the same tetrode driver amplifier. A prototype system is being constructed to test components, using some of the infrastructure from previous RF projects. High voltage DC power became available through innovative re-engineering of an installed system. A summary of the design and construction of the intermediate power amplifier will be presented and test results will be summarized.read more
Citations
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Proceedings ArticleDOI
LANSCE 201 MHZ and 805 MHZ RF System experience
TL;DR: In this article, the LANSCE RF system consists of four RF stations at 201 MHz and forty-four klystrons at 805 MHz, each of which consists of a train of amplifiers, including a solid state amplifier, a tetrode, and a triode.
Design of a new VHF RF power amplifier system for LANSCE
John Lyles,Richard D. Summers,D.M. Baca,Ray Bratton,Zukun Chen,Gilbert M. Sandoval,Angela Carol Naranjo,David Warren,Steven Archuletta,Nathan K. Bultman,J. Davis,Daniel Rees +11 more
TL;DR: The 3.2 MW final power amplifier (FPA) as discussed by the authors uses a Thales TH628 Diacrode{reg_sign}, a state-of-theart tetrode that eliminates the large anode modulator of the triode-based FPA that has been in use for four decades.
A high power test facility for new 201.25 mhz power amplifiers and components
J. Lyles,J. Davis,D. Rees,Gilbert M. Sandoval,A. Steck,D. Vigil,D. Baca,R. Bratton,R. Summers,N. Brennan +9 more
TL;DR: In this paper, a test facility was designed and constructed at Los Alamos Neutron Science Center (LANSCE) for testing a new Thales TH628 Diacrode final power amplifier and associated driver stages.
References
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New high power 200 MHz RF system for the LANSCE drift tube linac
J. Lyles,C. Friedrichs,M. Lynch +2 more
TL;DR: The Los Alamos Neutron Science Center (LANSCE) linac provides an 800 MeV direct H{sup +} proton beam, and injects H {sup {minus}} to the upgraded proton storage ring for charge accumulation for the Short Pulse Spallation Source as discussed by the authors.
Proceedings ArticleDOI
Operational experience with two types of 2 MW HVDC power supplies on LEDA
TL;DR: In this paper, two different types of candidate HV power supplies are tested on the Low Energy Demonstration Accelerator (LEDA) at Los Alamos National Laboratory and evaluated their impact on power supply reliability, serviceability and cost.
A new 201.25 mhz high power rf system for the lansce dtl
TL;DR: In this article, a triode final power amplifiers (FPA) with pyrolytic-graphite grids was proposed to increase the peak power and duty factor (DF) of the 100 MeV DTL.
Proceedings ArticleDOI
Progress on the new high power 200 MHz RF system for the LANSCE DTL
TL;DR: In this article, a new RF power system is developed for increased peak power with higher duty factor, which uses a THALES TH628 Diacrodeo(R) and will not require the large anode modulators used in the present system.
Proceedings ArticleDOI
LANSCE 201 MHZ and 805 MHZ RF System experience
TL;DR: In this article, the LANSCE RF system consists of four RF stations at 201 MHz and forty-four klystrons at 805 MHz, each of which consists of a train of amplifiers, including a solid state amplifier, a tetrode, and a triode.