bergoz instrumentation
S-BPM
S-band / L-band BPM Electronics
S-band / L-band BPM Electronics
The
S-band / L-band Beam Position Monitor (S–BPM)
is an electronics module for fast analog processing
of beam pickup signals. Single-pass bunch and
macropulses can be measured thanks to parallel
processing of inputs. Macropulses and single
bunches up to 2 MHz repetition rate can be measured
individually. X and Y coordinates are memorized
until the next macropulse of bunch. CW beam can be
measured continuously. The X and Y coordinates are
available permanently. Beam position motions up to
5 MHz can be observed.
X and Y outputs are strong analog ±2V signals.
S-band / L-band BPM is compatible with Bergoz’ multiplexed BPM and Log-ratio BPMs. They can be plugged into the same chassis.
Precise phase matching of input signals is not required.
X and Y outputs are strong analog ±2V signals.
S-band / L-band BPM is compatible with Bergoz’ multiplexed BPM and Log-ratio BPMs. They can be plugged into the same chassis.
Precise phase matching of input signals is not required.
■ Non-interceptive
beam position measurement
■ For linacs, microtrons and transfer lines
■ Single bunch, macropulse and CW
■ Beam charge range > 1000
S–BPM was designed by S. Artinian based on the earlier
LR-BPM by A. Kalinin
Front-end Filter / Amplifier FEFA
One Front-end Filter / Amplifier is required for every BPM pickup electrode. It is tuned to the beam RF or harmonic. It is powered from the S–BPM module via the coaxial cable linking them together. It must be installed close to the BPM pickup block, e.g. 1 meter.
■ For linacs, microtrons and transfer lines
■ Single bunch, macropulse and CW
■ Beam charge range > 1000
S–BPM was designed by S. Artinian based on the earlier
LR-BPM by A. Kalinin
Front-end Filter / Amplifier FEFA
One Front-end Filter / Amplifier is required for every BPM pickup electrode. It is tuned to the beam RF or harmonic. It is powered from the S–BPM module via the coaxial cable linking them together. It must be installed close to the BPM pickup block, e.g. 1 meter.
Operating principle
Based on the pioneering work of Robert E. Shafer at Los Alamos Laboratory, the Log-Ratio BPM derives beam position from logarithm of the ratio of opposite pickup signals: Log(A/B). Position measured by this method is more linear, over a wider range, than difference-over-sum.
Based on the pioneering work of Robert E. Shafer at Los Alamos Laboratory, the Log-Ratio BPM derives beam position from logarithm of the ratio of opposite pickup signals: Log(A/B). Position measured by this method is more linear, over a wider range, than difference-over-sum.
The position of the beam from rotated pickups is
obtained by axis translation to the vertical resp.
horizontal plane
by wideband analog circuits.
by wideband analog circuits.