RUPAC2012 - List of Authors (Karpov, G.V.)

Paper	Title	Page
WEPPD028	Beam Position Monitor System for 2 MeV Electron Cooler for COSY	608
	E.A. Bekhtenev, V.P. Cherepanov, G.V. Karpov, V.B. Reva, E. Shubin, D.N. Skorobogatov BINP SB RAS, Novosibirsk, Russia
	The 2 MEV electron cooler for COSY storage ring FZJ is assembling in BINP. Beam position monitor (BPM) system for orbit measurements has been developed and fabricated at BINP. The system contains 2 BPMs inside the cooling section and 10 BPMs in transport channels Continuous electron beam is modulated with a 3 MHz signal for capability to get signals from pickup electrodes. The beam current modulation can be varied in the range of 0.3-1.5 mA. The BPMs inside the cooling section can measure both electron and proton beams. It is achieved by means of switching the reference signals inside the BPM electronics. The BPM electronics provides highly precise beam position measurements. Relative position measurement error doesn’t exceed 1 micron. Design features of the BPM system, its parameters and testing results are presented in this paper.

WEPPD029	Fast Tune Measurement System	611
	E.A. Bekhtenev, V.P. Cherepanov, G.V. Karpov, A.S. Styuf BINP SB RAS, Novosibirsk, Russia
	Tune measurement system developed in Budker Institute of Nuclear Physics provides fast and accurate measurements of fractional part of betatron tunes in electron-positron storage rings and accelerators. The tune measurements rate can achieve 1 kHz. It is especially important for electron-positron accelerators to have tunes measurement data for each phase of accelerating cycle. The developed system is planed to be installed at the NSLS-II Booster Synchrotron. The system can perform up to 330 measurements during 300 ms time interval of Booster energy ramping. The kicking technique is used as measurement method. The kicks are carried out by a radio frequency (RF) pulses. Each RF pulse contains two frequencies and thus can simultaneously excite the horizontal and vertical betatron oscillations. All signal processing including FFT is performed inside FPGA. The tune measurement accuracy is better than 0.0005. The developed system was put into operation at the February 2011 in VEPP-3 electron-positron storage ring at BINP.

WEPPD030	New Beam Position Monitor Electronics For VEPP-5 Preinjector	614
	A.S. Styuf, G.V. Karpov BINP SB RAS, Novosibirsk, Russia
	A new beam position monitor (BPM) electronics has been designed, manufactured and tested in VEPP-5 preinjector. Preinjector BPM system measures position of single electron and positron bunches for each injection cycle. New BPM electronics provides more high sensitivity with respect to existing one developed in 2004. The system can measure the position of bunches with 10⁸ - 10¹⁰ particles per bunch. The resolution of measurements of single bunch is better than 10 mkm for 10¹⁰ particles per bunch. The features of BPM electronics design, the main parameters and results obtained in VEPP-5 preinjector are presented.

Paper

Title

Page

Beam Position Monitor System for 2 MeV Electron Cooler for COSY

608

E.A. Bekhtenev, V.P. Cherepanov, G.V. Karpov, V.B. Reva, E. Shubin, D.N. Skorobogatov
BINP SB RAS, Novosibirsk, Russia

The 2 MEV electron cooler for COSY storage ring FZJ is assembling in BINP. Beam position monitor (BPM) system for orbit measurements has been developed and fabricated at BINP. The system contains 2 BPMs inside the cooling section and 10 BPMs in transport channels Continuous electron beam is modulated with a 3 MHz signal for capability to get signals from pickup electrodes. The beam current modulation can be varied in the range of 0.3-1.5 mA. The BPMs inside the cooling section can measure both electron and proton beams. It is achieved by means of switching the reference signals inside the BPM electronics. The BPM electronics provides highly precise beam position measurements. Relative position measurement error doesn’t exceed 1 micron. Design features of the BPM system, its parameters and testing results are presented in this paper.

WEPPD029

Fast Tune Measurement System

611

E.A. Bekhtenev, V.P. Cherepanov, G.V. Karpov, A.S. Styuf
BINP SB RAS, Novosibirsk, Russia

Tune measurement system developed in Budker Institute of Nuclear Physics provides fast and accurate measurements of fractional part of betatron tunes in electron-positron storage rings and accelerators. The tune measurements rate can achieve 1 kHz. It is especially important for electron-positron accelerators to have tunes measurement data for each phase of accelerating cycle. The developed system is planed to be installed at the NSLS-II Booster Synchrotron. The system can perform up to 330 measurements during 300 ms time interval of Booster energy ramping. The kicking technique is used as measurement method. The kicks are carried out by a radio frequency (RF) pulses. Each RF pulse contains two frequencies and thus can simultaneously excite the horizontal and vertical betatron oscillations. All signal processing including FFT is performed inside FPGA. The tune measurement accuracy is better than 0.0005. The developed system was put into operation at the February 2011 in VEPP-3 electron-positron storage ring at BINP.

WEPPD030

New Beam Position Monitor Electronics For VEPP-5 Preinjector

614

A.S. Styuf, G.V. Karpov
BINP SB RAS, Novosibirsk, Russia

A new beam position monitor (BPM) electronics has been designed, manufactured and tested in VEPP-5 preinjector. Preinjector BPM system measures position of single electron and positron bunches for each injection cycle. New BPM electronics provides more high sensitivity with respect to existing one developed in 2004. The system can measure the position of bunches with 10⁸ - 10¹⁰ particles per bunch. The resolution of measurements of single bunch is better than 10 mkm for 10¹⁰ particles per bunch. The features of BPM electronics design, the main parameters and results obtained in VEPP-5 preinjector are presented.