Techniques of the FLASH thin target experiment

R. Abbasi, T. Abu-Zayyad, K. Belov, J. Belz, D.R. Bergman, Z. Cao, F.-Y. Chang, C.-C. Chen, C.-W. Chen, P. Chen, M. Dalton, Y. Fedorova (+26 others)
2008 Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment  
The fluorescence yield in air is reported for wavelength and pressure ranges of interest to ultra-high energy cosmic ray detectors. A 28.5 GeV electron beam was used to excite the fluorescence. Central to the approach was the system calibration, using Rayleigh scattering of a nitrogen laser beam. In atmospheric pressure dry air, at 304 K, the yield is 20.8 ± 1.6 photons per MeV.
doi:10.1016/j.nima.2008.08.054 fatcat:ldslh6cxkzfgjlhwwybx2l7aoi