Wednesday, May 8, 2013

1305.1329 (J. T. Brack et al.)

Absolute Calibration of a Large-diameter Light Source    [PDF]

J. T. Brack, R. Cope, A. Dorofeev, B. Gookin, J. L. Harton, Y. Petrov, A. C. Rovero
A method of absolute calibration for large aperture optical systems is presented, using the example of the Pierre Auger Observatory fluorescence detectors. A 2.5 m diameter light source illuminated by an ultra--violet light emitting diode is calibrated with an overall uncertainty of 2.1 % at a wavelength of 365 nm.
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