A technique for reducing the computational time of electron—photon cascade-shower simulation

✍ Scribed by K. Kasahara

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 468 KB
• Volume: 64
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/0010-4655(91)90034-i

✦ Synopsis

The angular-lateral correlated Gaussian formula (Fermi's solution) of multiple Coulomb scattering of high-energy charged particles is extended to cases where the energy-loss rate of the particles is constant in homogeneous matter as well as in the atmosphere. Then, a method is shown how to apply the formulas to the electron-photon cascade process where many generations of electrons and photons are involved. The technique speeds up the Monte Carlo simulation of the electron-photon cascade by 3 to 5 times as compared to a conventional method. Though the approximations used may seem rather rough, results for high-energy incident particles ( > several hundred MeV) are even quantitatively comparable with experimental results. The technique may be implemented in many Monte Carlo simulation programs as an option to be used for specific applications.