Determining beam parameters in a storage ring with cylindrical hodoscope using elastic proton-proton scattering
- Rohdjeß, H.
- Albers, D.
- Greiff, J.
- Groß, A.
- Groß-Hardt, R.
- Hinterberger, F.
- Igelbrink, M.
- Langkau, R.
- Maier, R.
- Mosel, F.
- Müller, M.
- Münstermann, M.
- Bisplinghoff, J.
- Prasuhn, D.
- von Rossen, P.
- Scheid, H.
- Schirm, N.
- Schwandt, F.
- Scobel, W.
- Trelle, H. J.
- Wellinghausen, A.
- Wiedmann, W.
- Woller, K.
- Bollmann, R.
- Ziegler, R.
- Blüßer, K.
- Diehl, O.
- Dohrmann, E.
- Engelhardt, H. P.
- Eversheim, P. D.
- Gasthuber, M.
DOIAbstract
The EDDA-detector at the cooler-synchrotron COSY/Julich has been operated with an internal CH2 fiber target to measure proton-proton elastic scattering differential cross-sections. For data analysis knowledge of beam parameters, like position, width and angle, are indispensable. We have developed a method to obtain these values with high precision from the azimuthal and polar angles of the ejectiles only, by exploiting the coplanarity of the two final-state protons with the beam and the kinematic correlation. The formalism is described and results for beam parameters obtained during beam acceleration are given. (c) 2005 Elsevier B.V. All rights reserved
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