Related Manuals for Bergoz BCM-IHR-E
Summary of Contents for Bergoz BCM-IHR-E
- Page 1 USER MANUAL BCM-IHR-E Beam Charge Monitor Integrate Hold Reset Rev. 4.0 More than 40 years of experience recognized in the world of particle accelerators...
- Page 2 BCM-IHR-E User Manual Version 4.0 Record of updates Version Date Updates performed p.6: Oscilloscope plot, trace 3 changed to “Output View”. Oscilloscope plot, 02/2008 trace 1 changed to “Signal View”. p.7: Oscilloscope plot, trace 3 changed to “Output View”.Oscilloscope plot, trace 1 changed to “Signal View”.
- Page 3 BCM-IHR-E User Manual Version 4.0 DISTRIBUTORS U.S.A. Japan GMW Associates Hayashi-Repic Co., Ltd. www.gmw.com www.h-repic.co.jp sales@gmw.com sales@h-repic.co.jp India China GEEBEE International Beijing Conveyi Limited www.geebeeinternational.com www.conveyi.com info@geebeeinternational.com sales@conveyi.com South Korea Seyoung Co., Ltd www.seyoungsys.com apark@seyoungsys.com...
- Page 4 BCM-IHR-E User Manual Version 4.0...
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Page 5: Table Of Contents
Most sensitive configuration ..................... 18 Least sensitive configuration .................... 18 REMOTE RANGE and CALIBRATION SWITCHING ..............19 SPECIFICATIONS ........................20 Beam Charge Monitor ....................... 20 Power supply and fuses ....................21 MAKING PRECISE MEASUREMENTS WITH THE BCM-IHR-E ..........22 Page 1... - Page 6 BCM-IHR-E User Manual Version 4.0 SETTINGS ..........................22 Front-panel potentiometers ....................22 On-board potentiometers ....................22 CONNECTOR PINS ALLOCATION ..................23 BCM CHASSIS ........................23 Page 2...
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Page 7: Initial Inspection
Bergoz Instrumentation or its local distributor before return of goods. Bergoz Instrumentation will repair or replace any product under warranty at no charge. For products in need of repair after the warranty period, Bergoz Instrumentation will assess the technical issue and send a quote to the purchaser/customer. The purchaser/customer must provide a purchase order before repairs can be initiated. -
Page 8: Return Procedure
The return of this repaired product under warranty back to the customer is paid by Bergoz Instrumentation. Return of product out of warranty should be made prepaid or will be invoiced. Bergoz Instrumentation will not accept freight-collect shipments. Shipments should be made via UPS, FedEx or DHL. -
Page 9: Bcm-Ihr Set
BCM-IHR version This manual applies to newer BCM-IHR-E Beam Charge Monitor, Integrate-Hold-Reset versions. These BCM-IHR sets usually consist of at least one BCM-IHR-E electronics module and one BCM-RFC/xx 3U x 19” chassis. This User's manual does not describe older BCM versions, housed in an ABS plastic enclosure. -
Page 10: Db9 Remote Control Key
A "DB9 Remote control key" is supplied with the Beam Charge Monitor. Its purpose is to control the BCM-IHR-E ranges when the accelerator control system is not connected. It is a small auxiliary printed circuit board attached to a DB9 connector. An 8-bit switch is mounted on the printed circuit board. -
Page 11: General Description
It supports pulse/macropulse repetition rates up to 1 kHz. System components ICT Integrating Current Transformer is the sensor matching BCM-IHR-E. ICT is available in two styles: • In-flange ICT to be bolted in-line with the vacuum chamber •... -
Page 12: Operating Principle
BCM-IHR-E User Manual Version 4.0 OPERATING PRINCIPLE Integrating Current Transformer ICT Integrating Current Transformer is a passive transformer designed to measure charges of very fast pulses with high accuracy. Beam pulses may have any length shorter than the ICT output signal. -
Page 13: Cable Connection
Signal processing The BCM-IHR-E input signal is amplified by the Charge Amplifier. The amplified signal enters the Bunch Signal Processor, which integrates this signal every time the BCM-IHR-E is triggered by an external trigger. This gives the possibility to measure selected pulses only, not necessarily at a fixed repetition rate. -
Page 14: Timing Of The Bcm-Ihr
The Hold time or Cycle duration T can be adjusted by potentiometer "Cycle (Hold) Time". It is located on the BCM-IHR-E board. The cycle duration T must not be made shorter than the sum of the trigger delay and the two integration windows. -
Page 15: Beam Charge Monitor Output
To locate on-board potentiometers, please refer to chapter "Settings", in this manual. On-line calibration On-line calibration of the BCM-IHR-E is possible at any time when there is no beam. Even when the no-beam time is short, on-line calibration may still be possible. -
Page 16: Bcm-Ihr System Check
BCM chassis is equipped with Minmax AKF-15D15 power supply units Their AC mains input range is 85Vac to 263 Vac, 50/60Hz. If the mains voltage does not fall within those limits, contact Bergoz Instrumentation at info@bergoz.com. Quick Check You can check immediately that your BCM system is working. This is what you need: •... -
Page 17: Setup
BCM-IHR-E User Manual Version 4.0 Setup To rear panel “BCM BCM-IHR-E Input” 30ns - 2.4V - 1 kHz Oscilloscope Pulse Generator Ch2 Ch3 Ch4 To rear panel “Trigger in” Signal View Output View Timing View Trigger to synchronize oscilloscope Connect as shown on picture: ICT output to "BCM Input"... -
Page 18: Waveforms
BCM Testing the BCM-IHR-E: Turn the BCM-IHR-E "Cal. Delay" 20-turn front panel potentiometer: It changes the delay between the trigger and the calibration pulse. The calibration pulse can be moved from the second integration window (the "adding" window) into the first integration window (the "subtracting"... - Page 19 Adjust the oscilloscope time base to a slower sweep: 50 µs / div. Oscilloscope traces should look like this: Signal View Shows internal calibration pulse Timing View Output View Trigger as applied to BCM The complete BCM-IHR-E cycle is visible on the oscilloscope including the BCM output reset to zero after 400µs. Page 15...
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Page 20: Explanation Of The Timing View
In ex-factory conditions the hold time terminates 400 µs after the trigger. • Final step, falling edge: The hold time has finished. The BCM-IHR-E output is reset to zero. The Beam Charge Monitor is ready to receive another trigger. -
Page 21: The Bcm-Ihr System Does Not Behave As Described
The BCM-IHR system does not behave as described If your BCM-IHR-E is in ex-factory conditions, it should behave as described above. If it does not, check the switch settings on the "Remote Control" key: All switches should be in the OFF, i.e., “0”... -
Page 22: Sensitivity Of The Bcm-Ihr-E
BCM-IHR-E gain: • two core ICT with 5:1 turns ratio (= 10 Vs/C sensitivity), • BCM-IHR-E set to maximum gain (+20 dB on first stage and +20 dB on second stage) The achievable performance is: • Full scale is ±400 pC for ±8V output •... -
Page 23: Remote Range And Calibration Switching
Version 4.0 REMOTE RANGE and CALIBRATION SWITCHING All BCM-IHR-E functions can be controlled via a DB9 connector located on the back of the BCM chassis by applying TTL levels to the available 8 bits. An 8-bit DIP switch, attached to a DB9 male connector, is provided for user convenience, to simulate the presence of the control system. -
Page 24: Specifications
BCM-IHR-E User Manual Version 4.0 SPECIFICATIONS Beam Charge Monitor Input charge 4 nC max < 1ns in 50Ω termination Input rise time Gain steps 8 steps from 6 dB to 40 dB Gain, fine adjustment ± 1 dB Output bipolar, up to ± 8 V, for high-impedance readout Output load 10 mA max. -
Page 25: Power Supply And Fuses
BCM-IHR-E User Manual Version 4.0 Power supply and fuses The mains voltage is factory set according to the label on the power supply module front panel. Please remove or correct this label when you change the mains voltage selection. Type AKF-15D15, ±15V dual output... -
Page 26: Making Precise Measurements With The Bcm-Ihr-E
Version 4.0 MAKING PRECISE MEASUREMENTS WITH THE BCM-IHR-E To read the BCM-IHR-E output signal it is recommended to use high resolution digitizers, ADC cards or sampling voltmeters. The voltage reading must be started (triggered) when the BCM-IHR-E output pulse is stable, i.e. - Page 27 BCM-IHR-E User Manual Version 4.0 CONNECTOR PINS ALLOCATION Mating connector: use any DB9 female connector. Locking with UNC4-40 screws. Gain selection Bit 0 .................. Bit 1 .................. Bit 2 .................. Signal polarity .................. Calibration polarity .................. Calibration charge selection Bit 0 ..................
- Page 28 If you have any questions, feel free to contact us by e-mail info@bergoz.com Bergoz Instrumentation – 156, rue du Mont Rond – Espace Allondon Ouest – 01630 SAINT GENIS POUILLY – France Tél. : +33 (0) 459 42 66 42 Fax : +33 (0) 450 42 66 43 – bergoz@bergoz.com www.bergoz.com...
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