1. A general scheme for optimization of trigger rates in an experiment with limited bandwidth
- Author
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Hans-Christian Schultz-Coulon, Eckhard Elsen, John A Coughlan, H. Rick, and T.C. Nicholls
- Subjects
Physics ,Nuclear and High Energy Physics ,Minimum bias ,Data acquisition ,Nuclear Energy and Engineering ,General purpose ,Nuclear electronics ,Bandwidth (signal processing) ,Real-time computing ,Electronic engineering ,HERA ,Electrical and Electronic Engineering ,Particle detector - Abstract
Modern, general purpose high energy physics experiments are designed to record the events of physics processes which greatly differ in rate. Both rare signatures with trigger rates of order 1 Hz and minimum bias interactions with rates sometimes approaching 1 MHz have to be triggered at the same time. The typical means of accommodating these requirements within a limited bandwidth is to downscale individual trigger channels appropriately. This paper describes a novel procedure for finding an optimized set of downscale factors that automatically adapts to the beam conditions. A first application at the H1 experiment at HERA showed that the number of events recorded for specific channels could be significantly increased.
- Published
- 1999
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