Estimation of synchrotron-radiation background based on a real beam   orbit
  Some high-energy experiments have suffered from synchrotron-radiation background. As a measure, we have developed a new calculation method of synchrotron radiation based on a real beam orbit, aiming at quantitative estimations and the construction of a possible alarm system for the background. An explanation and a demonstration of our method are given. 
Tetsuo Abe and Hitoshi Yamamoto