Calculation of the Average Properties of Electromagnetic Cascades at High Energies (AEGIS)
AEGIS1 is a Monte Carlo program which simulates electromagnetic (EM) showers. It is intended mainly for applications to problems involving multi-GeV incident particles. In the high energy domain, analogue calculations tend to be very slow. Their execution time per incident particle grows linearly with energy. For the most energetic electrons and photons produced at present day accelerators (> 100 GeV), one can barely manage to simulate showers in this fashion because of computer time limitations. As to the future of analogue calculations, it is amusing to speculate whether improvements in computer speed and organization can keep pace with increases in particle accelerator energy.
KeywordsPair Production Selection Function Analogue Calculation Compton Scattering Incident Particle
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- 1.A. Van Ginneken, “AEGIS. A Program to Calculate the Average Behavior of Electromagnetic Showers”, Fermilab FN-309 (1978).Google Scholar
- 2.See e.g. H. A. Bethe and J. Ashkin, “Passage, of Radiations through Matter” in Experimental Nuclear Physics, Vol. I, E. Segre, Ed., Wiley, N.Y. (1953); also see Lecture 11 by K. O’Brien in this volume.Google Scholar