The non-Imaging Cherenkov air shower measurement technique holds great promise in furthering our understanding the Knee-to-Ankle region of the cosmic ray spectrum. In particular, this technique offers a unique way to determine the evolution of the cosmic ray nuclear composition, and an example is given by the recent spectrum results of the Tunka Collaboration. With this in mind, we are organizing a workshop, to be held at the University of Utah, to bring together the various practitioners of this cosmic ray measurement technique to share simulations, analyses, detector designs, and past experimental results amongst the community. The workshop will also be in support of our effort, NICHE, to extend the reach of the TA/TALE detector systems down to the Knee. We anticipate that the workshop will result in a white paper on the scientific importance of these high-energy cosmic ray measurements and on using the Cherenkov technique to accomplish them. Our goal is to have contributions from members of the previous generation of experiments such as BLANCA and AIROBICC; from members of KASCADE-GRANDE which recently completed data-taking operations; from members of Tunka, which is current operating; and from NICHE, the planned Non-Imaging CHErenkov array installation as an extension of TA/TALE. We also aim to have presentations on the simulation of events and detector response as well as presentations on the underlying cosmic ray physics of this energy region.
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