hbd hv control and monitoring system resistors, calibration co. manuel proissl hbd meeting...
DESCRIPTION
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 Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23 rd, 2008TRANSCRIPT
HBD HV Controland Monitoring System
RESISTORS, CALIBRATION & CO.
Manuel ProisslHBD Meeting 12/23/2008
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
Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008
HBD HV Control & Monitoring System Manuel Proissl Page 2 of 6
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
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
Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008
THE RESISTOR CODEC
HBD HV Control & Monitoring System Manuel Proissl Page 5 of 6
E WView from IR Front
ES3ES4
ES5
EN3 EN5
EN4
WS3 WS4
WS5
WN3 WN5
WN4
ES1 ES2 EN2 EN1 WS1 WS2 WN2 WN1
S N S N
1 3
2
5 7
4 6 8
Resistor ID Code
HV Box(1-8)
ModuleNum.(1-5)
GEM(T, M, B)
Layer(1-3)
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
Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 23rd, 2008