Now showing items 1-4 of 4

    • A calibration neutron monitor: statistical accuracy and environmental sensitivity 

      Krüger, Helena; Moraal, Harm (Elsevier, 2010)
      This paper is a follow-on of that of Krüger et al. [Krüger, H., Moraal, H., Bieber, J.W., Clem, J.M., Evenson, P.A., Pyle, K.R., Duldig, M.L., Humble, J.E. A calibration neutron monitor: energy response and instrumental ...
    • Cosmic rays in the heliosphere: observations 

      Moraal, Harm (Elsevier, 2014)
      This contribution to the 100th commemoration of the discovery of cosmic rays (6–8 August, 2012 in Bad Saarow, Germany) is about observations of those cosmic rays that are sensitive to the structure and the dynamics of the ...
    • Cosmic-ray modulation equations 

      Moraal, Harm (Springer, 2011)
      The temporal variation of the cosmic-ray intensity in the heliosphere is called cosmic-ray modulation. The main periodicity is the response to the 11-year solar activity cycle. Other variations include a 27-day solar ...
    • The effect of drift on the evolution of the electron/positron spectra in an axisymmetric pulsar wind nebula 

      Vorster, Michael J.; Moraal, Harm (IOP Publishing, 2014)
      Charged particles propagating through a structured magnetic field are subject to drift motion. The primary aim of the present paper is therefore to investigate the effects of gradient, curvature, and neutral sheet drift ...