wavel.	cross section 	error limit

280	9.41e-18	6.91e-19
282	9.47e-18	8.19e-19
284	1.16e-17	3.86e-19
286	1.17e-17	6.52e-19
292	1.05e-17	5.88e-19
294	1.17e-17	1.22e-18
296	1.24e-17	7.78e-19
298	1.05e-17	7.84e-19
300	1.66e-17	1.76e-18
302	2.47e-17	3.35e-18
304	3.28e-17	1.80e-18
306	3.66e-17	1.78e-18
308	3.67e-17	9.60e-19
310	4.07e-17	2.80e-18
312	4.60e-17	1.56e-18
314	5.10e-17	5.11e-18
316	5.46e-17	3.45e-18
318	5.08e-17	7.05e-18
320	4.42e-17	3.25e-18
322	4.65e-17	1.37e-18
324	4.66e-17	6.41e-18
326	4.81e-17	3.66e-18
328	3.88e-17	3.61e-18
330	3.39e-17	4.17e-18
332	3.08e-17	4.81e-18
334	3.46e-17	3.33e-18
336	2.83e-17	1.30e-18
338	2.60e-17	1.36e-18
340	2.78e-17	1.80e-19
342	2.22e-17	1.46e-18
344	1.58e-17	4.16e-19
346	1.54e-17	1.02e-18
348	1.63e-17	9.46e-19
350	1.72e-17	3.41e-18
352	1.50e-17	5.16e-18
354	1.17e-17	1.43e-18
356	8.88e-18	1.08e-18
358	7.95e-18	9.14e-19
360	7.10e-18	1.21e-18
362	6.83e-18	7.09e-19
364	6.20e-18	1.71e-18
366	7.64e-18	1.51e-19
368	5.40e-18	4.52e-19
370	4.91e-18	6.46e-19
372	4.75e-18	5.52e-19