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SUMMARY:The system for monitoring of the fast vertical oscillations of VEP
 P-3 SR beam
DTSTART;VALUE=DATE-TIME:20160705T090000Z
DTEND;VALUE=DATE-TIME:20160705T100000Z
DTSTAMP;VALUE=DATE-TIME:20260614T162040Z
UID:indico-contribution-1283@indico.inp.nsk.su
DESCRIPTION:Speakers: Mihail Fedotov (BINP\, NSU)\nDue to the presence of 
 a ripple on the output of various power sources\, and mechanical vibration
 s the VEPP-3 wiggler beam is subject to certain perturbations (oscillation
 s). Such disturbances can distort the results of precise experiments. At t
 he same time the existing stabilization system of the SR beam works with a
  large averaging times and almost not sensitive to these disturbances. \n\
 nThe differential high-speed detector based on pin-photodiodes and electro
 nic processing circuits (that provide filtering and correlated double samp
 ling of the signals) was developed for observation of the SR beam vertical
  oscillations. Detector is supplemented by electromechanical system for au
 tomatically adjustment of the sensor in beam center and allows to record s
 low displacement with a resolution of up to 0.2 microns.\n\nThe measuremen
 ts showed the presence of perturbations on the harmonics (50\, 100\, and 3
 00 Hz) and subharmonic (25 Hz) of power supply. In addition\, the frequenc
 ies of 20 or 21.5 kHz were observed too\, that is possibly related to the 
 sources of the inverter type.\n\nIt is expected that in the future this sy
 stem can be connected to fast correctors of VEPP-3 storage ring for feedba
 ck suppression of the beam oscillations.\n\nhttps://indico.inp.nsk.su/even
 t/3/contributions/1283/
LOCATION:Budker INP 2nd and 3rd floors
URL:https://indico.inp.nsk.su/event/3/contributions/1283/
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