#The spectral radiance of the 340 nm radiance standard
#The radiance standard has two integrating spheres with a micrometer slit at their junction, therefore its radiance is controlled by the slit position (width) and proportional to the junction area.
#The spectral radiance of the 340 nm radiance standard at the highest output (fully open micrometer slit) has been measured at the PTD Spectral Radiance Comparator Facility.
#The integrating sphere-based spectral radiance transfer standard was used to transfer the quantity of spectral radiance from the high photon flux black-body irradiator to the low photon flux radiance standard.
#
#Location: PTB Berlin
#Detector: BN-0102-1 integrating sphere-based spectral radiance transfer standard S/N2199M with 10W tungsten halogen lamp (1.59 A current)
#Atmosphere: air (NTP)
#Radiance standard output port diameter: 25.68 mm
#
#Column 1: Wavelength (nm)
#Column 2: Spectral radiance (1/[s nm m2 sr]), reading UV photons at particular wavelength (nm) emitted per unit time (second) per unit source area (meter squared) and propagated in the unit solid angle (steradian)
#Column 3: Uncertainty of the spectral radiance (1/[s nm m2 sr]) given with the coverage factor k=1
#
320, 7.733e08, 1.315e09
321, 4.567e08, 1.461e09
322, 9.155e08, 1.282e09
323, 9.613e08, 1.250e09
324, 1.532e09, 1.318e09
326, 7.521e08, 1.279e09
327, 2.733e09, 1.285e09
328, 3.316e09, 1.326e09
329, 3.775e09, 1.321e09
330, 5.753e09, 1.323e09
331, 9.366e09, 1.311e09
332, 1.557e10, 1.386e09
333, 2.296e10, 1.538e09
334, 3.122e10, 1.842e09
335, 4.728e10, 1.938e09
336, 6.480e10, 2.138e09
337, 8.414e10, 2.692e09
338, 1.033e11, 2.583e09
339, 1.150e11, 2.760e09
340, 1.176e11, 2.705e09
341, 1.098e11, 2.635e09
342, 9.341e10, 2.429e09
343, 7.372e10, 2.212e09
344, 5.426e10, 1.899e09
345, 4.257e10, 1.745e09
346, 3.668e10, 1.614e09
347, 2.915e10, 1.574e09
348, 2.779e10, 1.501e09
349, 2.428e10, 1.457e09
350, 2.020e10, 1.374e09
351, 1.831e10, 1.373e09
352, 1.851e10, 1.351e09
353, 1.507e10, 1.326e09
354, 1.399e10, 1.539e09
355, 1.330e10, 1.290e09
356, 1.122e10, 1.234e09
357, 8.604e09, 1.205e09
358, 6.523e09, 1.174e09
359, 5.421e09, 1.247e09
360, 5.762e09, 1.152e09
361, 3.780e09, 1.172e09
362, 2.983e09, 1.163e09
363, 2.558e09, 1.177e09
