NDLI: Lansce-R low level RF control system

Content Provider	IEEE Xplore Digital Library
Author	Prokop, M. Sungil Kwon Torrez, P. Ruggles, S.
Copyright Year	2007
Description	Author affiliation: Los Alamos Nat. Lab., Los Alamos (Prokop, M.; Sungil Kwon; Torrez, P.; Ruggles, S.)
Abstract	The Los Alamos Neutron Science Center (LANSCE) proton accelerator is scheduled for refurbishment. A new low level radio frequency (LLRF) system is part of the refurbishment plan since the existing LLRF system is analog-based and requires significant setup and maintenance time. Both field and resonance control aspects of the current system do not have the flexibility to meet future performance requirements. The LANSCE accelerator provides both $H^{+}$ and $H^{-}$ beams and due to the various user requirements there are a number of different beam pulse types varying in timing and current. In order to meet user needs,LANSCE must simultaneously transport both H+ and H" in the accelerator. These requirements have motivated the development of a new LLRF system based on software defined radio technology. The new system will include field control using feedback and adaptive feed forward techniques, an upgraded resonance controller with frequency agility to improve startup and fault recovery times and a high power amplifier pre-compensation controller for improved cavity fill times and amplifier efficiency. Among the challenges with implementing the new system are interfacing with existing subsystems of the accelerator.
Starting Page	2388
Ending Page	2390
File Size	985972
Page Count	3
File Format	PDF
ISBN	9781424409167
DOI	10.1109/PAC.2007.4441259
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Control systems Resonance Particle beams High power amplifiers Neutrons Proton accelerators Timing Software radio Feedback
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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