wavel.	cross sect.	error limit
-----------------------------------
184.95	2.77e-20	1.00e-22
190	8.85e-21	9.00e-23
195	2.79e-21	2.00e-23
200	8.87e-22	2.00e-23
205	2.98e-22	1.00e-24
210	1.13e-22	1.00e-24
215	4.48e-23	3.00e-25
220	2.16e-23	7.00e-25
225	1.09e-23	2.00e-25
230	5.23e-24	1.80e-25
235	3.43e-24	7.10e-25
240	1.53e-24	6.20e-25
250	1.10e-24	5.00e-25