wavel.	cross section	error limit

340	4.30e-19	2.2e-20
345	4.38e-19	2.2e-20
350	4.58e-19	2.3e-20
355	4.94e-19	2.5e-20
360	5.42e-19	2.7e-20
365	6.03e-19	3.0e-20
370	6.80e-19	3.4e-20
375	7.73e-19	3.9e-20
380	8.80e-19	4.4e-20
385	1.00e-18	5.0e-20
390	1.13e-18	6.0e-20
395	1.27e-18	6.0e-20
400	1.42e-18	7.0e-20
405	1.59e-18	8.0e-20
410	1.76e-18	9.0e-20
415	1.92e-18	1.0e-19
420	2.12e-18	1.1e-19
425	2.30e-18	1.2e-19
430	2.45e-18	1.2e-19
435	2.76e-18	1.4e-19
440	2.82e-18	1.4e-19
445	3.03e-18	1.5e-19
450	3.29e-18	1.6e-19