JETP Letters: issues online

Andreev V. A., Baublis V. V., Bondar' N. F., Gavrilov G. E., Komkov B. G., Koptev V. P., Krivshich A. G., Kudin L. E., Martyushov A. M., Marchenkov V. V., Morozov V. F., Myl'nikov V. A., Nelyubin V. V., Orishin E. M., Ryabov G. A., Samsonov V. M., Samsonov L. E., Spiridenkov E. M., Sulimov V. V., Sumbaev O. I., Fotieva E. N., Shegel'skii V. A.

Experiments show that a single crystal curved into a cylinder can select from a broad beam particles which arrive at the focus of the crystal. The width of the focus of the selected 1-GeV protons is FWHM<sub>c/l</sub> = 0.65 mm when a silicon crystal is curved to a radius of curvature of 2 m. The width of the direct beam in the focal region is FWHM<sub>r</sub> — 15.4 mm.

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