T(K)	cross sect. at 253.7 nm
-------------------------------
 200	5.45e-22
 300	8.45e-22
 400	1.32e-21
 500	1.93e-21
 600	2.65e-21
 700	3.49e-21
 800	4.42e-21
 900	5.46e-21
1000	6.59e-21
1100	7.81e-21
1200	9.13e-21
1300	1.05e-20
1400	1.20e-20
1500	1.36e-20
1600	1.53e-20
1700	1.71e-20
1800	1.89e-20
1900	2.08e-20
2000	2.28e-20
2100	2.48e-20
2200	2.69e-20