wavel.	cross sect.	error limit

174	4.280e-18	2.00e-19
178     3.990e-18	2.00e-19
182     3.110e-18	1.20e-19
186     2.500e-18	1.00e-19
190     1.850e-18	5.0e-20
194     1.420e-18	4.0e-20
198     9.79e-19	3.2e-20
202     6.44e-19	1.8e-20
206     4.01e-19	1.4e-20
210     2.36e-19	7.0e-21
218     7.00e-20	1.3e-21
226     1.82e-20	7.0e-22
234     5.39e-21	1.4e-22
242     1.23e-21	8.0e-23