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- S.G. Arutunian, K.H. Bakshetyan, N.M. Dobrovolski, M.R. Mailian, H.E. Soghoyan, I.E. Vasiniuk
YPI, Yerevan Physics Institute, Armenia
- K. Wittenburg
DESY, Deutsches Elektronen-Synchrotron, Hamburg, Germany
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The paper presents the first experimental results of transverse profile
scans using a wire scanner based on a vibrating wire (vibrating wire
scanner - VWS). The measurements were performed at the injector electron
beam (6 nA) of the Yerevan synchrotron. The beam profile information is
obtained by measuring the wire natural oscillations that depend on the
wire temperature. This first experiments on weak electron beam proved
this new method as a very sensitive tool, even suitable for tail
measurements.
Additional, improvements were tested to overcome some problems connected
with signal conditioning and signal transfer in the presence of
electromagnetic noise. As a result the noises were neatly separated and
reduced. A mathematical method for rejection of distorted data was
developed. Experiments with the scanner at the PETRA accelerator at DESY
are planned for measurements of beam tails.
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