wavel.	cross sect.	error limit
-----------------------------------
184.95	3.44e-20	3.00e-22
190	1.16e-20	1.00e-22
195	3.93e-21	2.00e-23
200	1.32e-21	1.00e-23
205	4.54e-22	1.00e-24
210	1.68e-22	1.00e-24
215	6.98e-23	1.30e-24
220	3.35e-23	1.00e-24
225	1.54e-23	7.00e-25
230	8.01e-24	1.44e-24
235	4.85e-24	5.00e-26
240	2.87e-24	2.40e-25
250	1.11e-24	5.00e-25