T in K cross sect. at 208.4 nm 295 3.17e-18 300 3.08e-18 305 2.98e-18 310 2.89e-18 315 2.79e-18 320 2.70e-18 325 2.60e-18 330 2.51e-18 335 2.41e-18 340 2.32e-18 345 2.22e-18 350 2.13e-18 355 2.03e-18 360 1.94e-18 365 1.84e-18 370 1.75e-18 375 1.65e-18 380 1.56e-18 385 1.46e-18 390 1.37e-18 395 1.27e-18 400 1.18e-18 405 1.08e-18 410 9.89e-19 415 8.94e-19