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, C. Field, C. Hast, M. A. Huang, P. Hüntemeyer*, W. Y.P. Hwang, R. Iverson, B. F. Jones, C. C.H. JuiGuey-Lin Lin, E. C. Loh, N. Manago, K. Martens, J. N. Matthews, M. Maestas, J. S.T. Ng, A. Odian, K. Reil, D. Rodriguez, J. Smith, P. Sokolsky, R. W. Springer, J. Thomas, S. Thomas, G. Thomson, D. Walz, A. Zech

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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.

Original languageEnglish
Pages (from-to)32-36
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
StatePublished - 21 Nov 2008


  • Air fluorescence
  • Fluorescence spectrum
  • Ultra-high energy cosmic rays


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