AT.run.CPPSC.method routine, some are provided default values
here to simplify the use.
!! THIS ROUTINE IS LIMITED TO THE LIN-QUAD MODEL BUT SHOULD BE GENERALIZED FOR
ANY GAMMA REPONSE, BOTH IN TERMS OF INPUT X RAY PARAMETERS *AND* OF RETURNED
(FITTED) ION PARAMETERS!!
Cave: Even if input X ray response is LQ with cut dose, the resulting LQ will
be purely linear-quadratic without high-dose linear characteristic.AT.CPPSC.alpha.and.beta(E.MeV.u, particle.no, fluence.cm2.or.dose.Gy, material.no, RDD.model, RDD.parameters, ER.model, gamma.model, gamma.parameters, N2 = 20, fluence.factor = 1.0, write.output = FALSE, shrink.tails = TRUE, shrink.tails.under = 1e-30, adjust.N2 = TRUE)