50u000 450000 400000 350000 300o 山 250000 200000 150000 50000 0 0102030405060708090100 E水T Figure 7. 1 Probability Weighting Factor P(E)as a Function of E for K=10 By taking the derivative of this function P(E)with respect to E, and finding the energy at which this derivative vanishes, one can show that this probability function has a peak at E*=kkT, and that at this energy value P(E*)=(KkT) exp(-K) By then asking at what energy e' the function P(E)drops to exp(-1)of this maximum alue P(es) PAGE 4PAGE 4 Figure 7.1 Probability Weighting Factor P(E) as a Function of E for K = 10. By taking the derivative of this function P(E) with respect to E, and finding the energy at which this derivative vanishes, one can show that this probability function has a peak at E* = K kT, and that at this energy value, P(E*) = (KkT)K exp(-K), By then asking at what energy E' the function P(E) drops to exp(-1) of this maximum value P(E*):