/* J. Phys. D 34 846 (2001)
40.2738	0.37162
47.6248	0.502455
54.3014	0.616876
60.3263	0.731453
66.9799	0.829309
73.6334	0.927165
81.636	1.05785
89.6386	1.18853
98.9214	1.30234
107.564	1.42458
118.859	1.57934
129.479	1.71768
138.774	1.83977
150.674	1.96124
161.934	2.09115
173.823	2.20434
183.723	2.29314
195.601	2.39805
210.084	2.50234
228.512	2.63055
256.107	2.78974
279.724	2.90014
300.712	2.99462