#340 nm radiance standard calibration in terms of simulated alpha activity using the Po-210 alpha 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 UV fused silica radioluminescence detector was used as a transfer standard to relate the integral photon radiance (between 252 nm and 268 nm) and simulated alpha activity at a various settings of device radiance.
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#Location: PTB, Chadwick-Bau, room 115
#Date and time: 21 Nov 2022 18:00:00
#Detector: 240 mm UV fused silica lens (ABET Technologies) with Hamamatsu H10862-210 PMT and 2 filters: Edmund Optics 337/10 (#65-067) and Semrock FF01-340/12-25
#Distance: 2 m (reference)
#Atmosphere: air (NTP)
#Source output port diameter: 25.68 mm
#
#Column 1: Micrometer slit width (mm); junction width between two integrating spheres
#Column 2: Integrated photon radiance (1/[s m2 sr]), reading UV photons with wavelengths between 334 nm and 346 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 integrated photon radiance (1/[s m2 sr]) given with the coverage factor k=1
#Column 4: Simulated alpha activity (Bq) of a corresponding Po-210 source
#Column 5: Uncertainty of the simulated alpha activity (Bq) given with the coverage factor k=1
#
0.02, 6.798e07, 1.332e06, 3.571e04, 3.801e03
0.05, 1.087e09, 9.922e06, 5.711e05, 5.999e04
0.10, 7.058e09, 6.085e07, 3.708e06, 3.892e05
0.20, 2.438e10, 2.094e08, 1.281e07, 1.344e06
0.50, 7.992e10, 6.828e08, 4.198e07, 4.407e06
1.00, 1.742e11, 1.490e09, 9.151e07, 9.607e06
2.00, 3.524e11, 3.011e09, 1.851e08, 1.943e07
5.00, 7.652e11, 6.537e09, 4.020e08, 4.220e07
6.00, 8.662e11, 7.408e09, 4.550e08, 4.777e07
6.50, 9.146e11, 7.829e09, 4.804e08, 5.043e07
7.00, 9.644e11, 8.264e09, 5.065e08, 5.318e07
7.50, 9.738e11, 8.220e09, 5.115e08, 5.370e07

