wavel.	cross sect.	error limit
-----------------------------------
235.0	~1.0e-20
240.0	~2.0e-20
241.6	2.1e-20
242.0	9.4e-20		2.2e-20
242.2	2.33e-19
243.5	7.50e-19 	0.90e-19
244.8	4.29e-19	0.70e-19
245.0	8.3e-20
245.2	8.9e-20
245.4	7.4e-20
245.6	6.6e-20
245.8	4.3e-20
246.0	4.6e-20
250.0	2.6e-20		0.09e-20
260.0	2.2e-20