Programmable master-timer system
The Clinton P. Anderson Meson Physics Facility (LAMPF) master-timer system provides a 96-channel timing solution of programmable signals and eight predefined system signals required for accelerator operation. Each signal may differ in delay, length, and rate of repetition. Timing solutions are calculated in the LAMPF central control computer, a VAX 11/780, and down-loaded to the master-timer computer, a ..mu..VAX-II. The one second timing solution consists of 120 macropulses synchronized to the zero crossing of the ac line. The output signal resolution is one microsecond. This CAMAC-based system is implemented in a dual configuration to ensure versatility and reliability. Each subsystem provides two, 96-channel timing solutions. Any of the four master-timer solutions can be loaded, verified, and then synchronously selected. If the ..mu..VAX-II discovers a timing error during self-testing, it automatically switches to a valid solution. Once loaded, the system will continue to run without computer intervention. The master-timer system has the capability of local control and of displaying current status information. Adaptability, reliability, and self-testing assure that the LAMPF master-timer system will keep pace with future requirements.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6726638
- Report Number(s):
- LA-UR-87-663; CONF-870302-1; ON: DE87006064
- Resource Relation:
- Conference: Particle accelerator conference, Washington, DC, USA, 16 Mar 1987; Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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