wavel.	cross sect.	error limit
-----------------------------------
184.95	2.52e-20	2.00e-22
190	7.87e-21	4.00e-23
195	2.40e-21	1.00e-23
200	7.52e-22	4.00e-23
205	2.51e-22	1.00e-24
210	9.45e-23	8.00e-25
215	4.08e-23	7.00e-25
220	1.84e-23	2.10e-24
225	9.96e-24	1.40e-24
230	6.27e-24	1.39e-24
235	3.67e-24	5.00e-25
240	2.07e-24	5.00e-25
250	8.23e-25	5.00e-25