ABSTRACT

Neutrino oscillations were first discovered by experiments looking at neutrinos coming from extra-terrestrial sources, namely the sun (Fukuda et al. 1998b) and the atmosphere (Fukuda et al. 1998a), but we will be depending on earth-based sources to take many of the next steps in this field. This article will describe what has been learned so far from accelerator-based neutrino oscillation experiments, and then describe very generally what the next acceleratorbased steps are. In section 2 the article will discuss how one uses an accelerator to make a neutrino beam, in particular, one made from decays in flight of charged pions. There are several different neutrino detection methods currently in use, or under development. In section 3 these will be presented, with a description of the general concept, an example of such a detector, and then a brief discussion of the outstanding issues associated with this detection technique. Finally, section 4 will describe how the measurements of oscillation probabilities are made. This includes a description of the near detector technique and how it can be used to make the most precise measurements of neutrino oscillations.