GTA Beamloss-Monitor System
The GTA Beamless-Monitor System at Los Alamos National Laboratory has been designed to detect high-energy particle loss in the accelerator beamline and shut down the accelerator before any damage can occur. To do this, the Beamless-Monitor System measures the induced gamma radiation, from (p, {gamma}) reactions, at 15 selected points along the beamline, converts this measured radiation to electrical signals integrates and compares them to preset limits, and, in the event of an over-limit condition causes the Fast-Protect System to shut down the entire accelerator. The system dynamic range exceeds 70 dB which will enable experimenters to use the Beamless-Monitor System to help steer the beam as well as provide signals for a Fast-Protect System. The system response time is less than 7 {mu}s assuming a step-function, worst-case beam spill of 50 mA. The system resolution, based on the noise floor of the electronics is about 1.3 mRads/s. Production units have been built and meet the above specifications. The remainder of the system will be installed and tested later in 1992/1993 with the GTA accelerator. The ionization chamber sensitivity and response time are described in the paper.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOD; Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 7161859
- Report Number(s):
- LA-UR-92-2630; CONF-9208109-23; ON: DE92040212
- Resource Relation:
- Conference: 16. international LINAC conference, Ottawa (Canada), 23-28 Aug 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAM MONITORS
DESIGN
PARTICLE LOSSES
BEAM MONITORING
COMPUTERIZED CONTROL SYSTEMS
LINEAR ACCELERATORS
ACCELERATORS
CONTROL SYSTEMS
MEASURING INSTRUMENTS
MONITORING
MONITORS
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
430303* - Particle Accelerators- Experimental Facilities & Equipment
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments