wavel.	cross sect.	uncertainty

300	1.032e-20	3.2e-22
305	5.27e-21	2.0e-22
310	2.49e-21	8.0e-23
315	1.23e-21	6.0e-23
320	6.19e-22	4.0e-23
325	3.22e-22	6.0e-24
330	1.60e-22	4.0e-24
335	7.87e-23	3.4e-24
340	4.17e-23	2.2e-24
345	2.11e-23	2.4e-24