wavel.	cross sect.	error limit
-----------------------------------
184.95	2.32e-20	1.00e-22
190	7.12e-21	5.00e-23
195	2.16e-21	1.00e-23
200	6.68e-22	4.00e-23
205	2.30e-22	2.00e-24
210	9.15e-23	2.00e-24
215	4.21e-23	1.40e-24
220	1.74e-23	5.00e-25
225	8.74e-24	7.70e-25
226	8.30e-24	5.00e-25
230	5.07e-24	1.40e-25
235	3.28e-24	5.00e-25
240	1.41e-24	5.00e-25
250	6.27e-25	5.00e-25