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HBD HV Control and Monitoring System

HBD HV Control and Monitoring System. RESISTORS, CALIBRATION & CO. Manuel Proissl HBD Meeting 12/23/2008. Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23 rd , 2008. OUTLINE.

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HBD HV Control and Monitoring System

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  1. HBD HV Controland Monitoring System RESISTORS, CALIBRATION & CO. Manuel Proissl HBD Meeting 12/23/2008

  2. Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008 OUTLINE • Project: dV = 0 • Step 1: Calibration of LeCroy PS • Step 2: Resistors on Divider • Step 3: Mesh Voltage Sweep vs. ADC Readout • Project Progress • Calibration Routine / Curves • Calibration Program in HV Control • Divider(s) • Resistor Measurements on HBD • Cable Coding (…) • Coming Up HBD HV Control & Monitoring System Manuel Proissl Page 2 of 6

  3. Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008 PROJECT: dV = 0 • Step 1: In order to accomplish the project’s goal, the fundamental prerequisite is knowing the ACTUAL voltage we’re applying… • Issue: Difference between DV, MV (mainframe) & actual voltage supplied • Solution: Calibration Curves for all channels • Step 2: What voltage ends up being supplied to the GEM/Mesh? • Issue: Resistor values only known by color code (…) • Solution: Measurement of all resistors installed on divider board • Step 3: What is going to be The Mesh Voltage for RB? • Issue: Who knows? • Solution: 1+1 Mesh Voltage Sweep during +/- config and ADC readout files for every sweep voltage  analysis  peak of PE vs. Mesh V. HBD HV Control & Monitoring System Manuel Proissl Page 3 of 6

  4. Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008 PROJECT PROGRESS • Under IR Access > MF Calibration, HV Control runs a calibration procedure automatically for every channel, while the Fluke via divider records every second (FlukeView) the output voltage of the particular channel on the LeCroy • After initial non-linearity problems (unknown current development), further calibration work will be done (…) • ALL resistors have been measured with Fluke in nS through FlukeView with 20 stable events each for average calculation • These will be out shortly… available in the hvdb database • ALL take-out resistors have been labeled with an unique position code • From now on, any future changes can be done safely without any mix-up! HBD HV Control & Monitoring System Manuel Proissl Page 4 of 6

  5. Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008 THE RESISTOR CODEC View from IR Front E W Resistor ID Code ES5 EN4 WS5 WN4 ES4 EN3 EN5 WS4 WN3 WN5 ES3 WS3 2 4 6 8 S S N N HV Box (1-8) Module Num. (1-5) GEM (T, M, B) Layer (1-3) 1 3 5 7 ES1 ES2 EN1 EN2 WS1 WS2 WN1 WN2 HBD HV Control & Monitoring System Manuel Proissl Page 5 of 6

  6. Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008 COMING UP • Resistor Values into hvdb database • Connecting to config system in HV Control • HV remote testing until Jan 2nd • Correction Curves for 1471N Calibration: new divider setup… • Distribution / Installation Files for Linux & XP/Vista • Platform independence • Final installation files with Installation Wizard • HV remote testing / system improvements until Jan 2nd • HAPPY HOLIDAYS!!! HBD HV Control & Monitoring System Manuel Proissl Page 6 of 6

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