wavel.	cross sect.	uncertainty

300	7.04e-21	2.4e-22
305	3.34e-21	1.0e-22
310	1.58e-21	1.8e-23
315	7.02e-22	3.2e-23
320	3.27e-22	1.6e-23
325	1.63e-22	4.0e-24
330	7.54e-23	2.0e-24
335	3.38e-23	3.8e-24
340	1.74e-23	1.8e-24
345	7.63e-24	1.56e-24