mice cm berkeley 9-12 feb. 05 11 february 2005 edda gschwendtner 1 parameter list edda gschwendtner...
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11 February 2005Edda Gschwendtner1MICE CM Berkeley 9-12 Feb. 05
Parameter ListEdda Gschwendtner
Introduction Parameter list for sub-systems of MICE Implementation in DAQ
11 February 2005Edda Gschwendtner2MICE CM Berkeley 9-12 Feb. 05
Introduction
What parameters at the entire MICE experiment needs to be controlled.
Precision needed. Present a parameter list to the simulation team with a
challenge to look at the sensitivities by the collaboration meeting in Italy summer 2005.
Stated goal of MICE: εout/ εin of 10-3
11 February 2005Edda Gschwendtner3MICE CM Berkeley 9-12 Feb. 05
So far…the required monitoring should consist of:
-- Ampermeter for each coil-- Magnetic field measurement -- monitor position of probes and coil assemblies (with ref.
to an absolute coordinate system)-- ERF(t) (gradient and phase of each cavity)-- absorber density (i.e. T & P) and thickness. -- Beams-- Cryo
MA Cummings CM8, CERN April 2004
11 February 2005Edda Gschwendtner4MICE CM Berkeley 9-12 Feb. 05
Survey on Controls, Instrumentation and DAQ
1. PHYSICS PARAMETERS: Which parameters might it be important to include in the data analysis of the experiment?
2. CONTROL/MONITORING: Which additional parameters are needed for control or monitoring?
3. How do you see these parameters being recorded and controlled?
4. What need do you have for stand-alone operation as opposed to integrated operation in MICE at RAL?
11 February 2005Edda Gschwendtner5MICE CM Berkeley 9-12 Feb. 05
Terminology
Physics Parameters = Detector performance parameters Beam related From detector analysis
Control/Monitoring (CM) Parameter Not beam related Not from analysis of detectors Industrial standards
e.g.: T, P, currents…
e.g.: pedestal, gain,…
11 February 2005Edda Gschwendtner6MICE CM Berkeley 9-12 Feb. 05
Beam & Target (Drumm)
CM Parameters For all magnets Qs(9), Ds(2), decay solenoid:
Current Volts Temperature, Cryogenics, Vacuum
Target: ISIS Machine start ISIS clock Insertion depth (read every 0.1ms to adapt drive currents and timing) Insertion time
Operational monitors: 8 temperature measurements/cycle
Extra needs @ RAL Beam line independent from MICE Target testing away from RAL
Local integrated System for beamLine and target.PC/VME/PLCEPICS/LabView
To TDC ?Useful for trigger
11 February 2005Edda Gschwendtner7MICE CM Berkeley 9-12 Feb. 05
Cooling Channel - Absorber
CM parameters Temperature (Cryocooler,
Absorber, temperature systems) Liquid level Buffer vacuum pressure Pressure at key points in H2
system Valve status in H2 system Heater currents Window location (?)
CM parameters (from TRD) H2 gas system and He gas system
Pressure gauge (capacitance-type); 1 each Pirani gauge; 1 each
LH2 reservoir at 1st stage of Cryocooler 2 Thermometers 1 Level sensor (capacitance-type) 2 Heater (1 for spare)
Hydrogen absorber 8 Thermometer 1 Level sensor
Absorber windows 1 Thermometer Heater; 1 each (to warm up)
Safety windows Thermometer; 1 each
Absorber vacuum and Safety vacuum Pressure gauge (capacitance type); 1 each Pirani & cold cathode gauge; 1 each Mass spectrometer; 1 each
11 February 2005Edda Gschwendtner8MICE CM Berkeley 9-12 Feb. 05
Cooling Channel - RF Cavities (Virostek)
CM parameters Cavity position and alignment with respect to solenoid Cavity temperature Sensing loop signal from each of the 8 cavities
Vacuum roughing pump control (2each) Vacuum roughing valve control and status (2each) Cryo pump ion gages (4 total) Vacuum manifold thermocouple and ion gages (4 each total) Vacuum vessel ion gages (2 per vessel, 4 total) Cavity ion gages (8total) Cryo pump compressor control (2 each) Gate valve control and status (4 each) Cavity body temperature thermocouple (2 per cavity, 16 total) Cavity cooling fluid temperature in (8 total) Cavity cooling fluid temperature out (8 total) Cavity cooling fluid pressure in (1 per cavity pair, 4 total) Cavity cooling fluid pressure out (1 per cavity pair, 4 total) Cavity cooling flow rate (8 total) Tuner hydraulic reservoir pressure (8 each) Tuner hydraulic reservoir pressure control (8 each) [feedback & control from cavity frequency]
~1 Hz recording rateGoes to primary control system
11 February 2005Edda Gschwendtner9MICE CM Berkeley 9-12 Feb. 05
Cooling Channel - Magnets
CM parameters: Current in each individual supply Magnetic field at external probes (4 probes/coil) Temperatures (cryocooler and coil) Quench protection (?)
SC Coils
Magnetic
sensors
11 February 2005Edda Gschwendtner10MICE CM Berkeley 9-12 Feb. 05
CKOV1 (Cremaldi)
Physics parameters Noise levels-pedestal Random pedestal trigger Photoelectron count- 4 channel + 1 spare Single electron photo-peak Muon bunch structure Device efficiency vs. muon position Laser pulse system trigger (shared with CKOV2)
CM parameters PM Tube HV – 4 channels + 1 spare CAEN/Lecroy HV Alarm System Box temperature PLC (slow control) Purge gas flow visual Freon level ??
Extra needs@ RAL Oscilloscope ADC card + PC External trigger line Radioactive source trigger + logic Trigger paddles + logic for muon response survey
DAQ
11 February 2005Edda Gschwendtner11MICE CM Berkeley 9-12 Feb. 05
CKOV2 (Gregoire)
Physics parameters 8 responses of PMs to
light pulses Pedestal, gain
1 digital output for triggering light pulser
8 TDC outputs CM parameters
8 HV Temperature probe He pressure Humidity
11 February 2005Edda Gschwendtner12MICE CM Berkeley 9-12 Feb. 05
TOF (Bonesini)
Physics parameters Pedestal
CM Parameters HV Temperature Magnetic field
11 February 2005Edda Gschwendtner13MICE CM Berkeley 9-12 Feb. 05
EmCAL (Tortora)
Physics parameters Pedestals
CM parameters HV of PMs ( CAEN SY 527, CAENNET VME
Controller V288 for remote control) Residual B field Global Time Offset ( Trigger formation time with respect to
ISIS bunch warning) Extra needs @ RAL
Stand-alone readout system Cosmic rays run for E, t, calibration
11 February 2005Edda Gschwendtner14MICE CM Berkeley 9-12 Feb. 05
SciFi (Bross)
Physics parameters Pedestal Gain Discriminator threshold
CM Parameters 72 Temperature 64 Bias
Extra needs @ RAL Separate calibration runs
Via FE electronics board, stored via MICE slow control system. 8 temperatures for cryostat, interfaced differently.
DAQ
11 February 2005Edda Gschwendtner15MICE CM Berkeley 9-12 Feb. 05
Two Approaches
1. ‘Want to record a full configuration of the experiment at every possible event. Controls data are part of each data event.’ (MACC, CM8, CERN April 2004) Consequence: equipment @ 3 MHz ?
2. 2 individual acquisitions Data events @ 3MHz (mainly physics parameters) Slow control @ ~Hz
Are there any parameters which have to be read out at 3 MHz?
Analysis software can put them together Faster access to conditions data
11 February 2005Edda Gschwendtner17MICE CM Berkeley 9-12 Feb. 05
How to Handle these Parameters in the DAQ
Define tolerances From Slow Control: alarm if value out of certain range… From detector performance: warnings/alarms/dumps..
Define monitors of parameters Plots from Slow Control stream Plots from DAQ
Calibration runs Stand-alone operation of all different sub-systems !! Different configurations of cooling channel component
and the beam. (RF, no RF, beam, no beam,….) Cosmics
Calibration data during the run (out-of spill triggers) Continuously monitoring during run!
11 February 2005Edda Gschwendtner18MICE CM Berkeley 9-12 Feb. 05
Detector DAQ expert’s terminology
Running conditions HV, T, P, mixture, alignment, dead channel, (detector
configuration). Either: Slow control Come from special analysis from data
Special events (calibration events) Empty events (computing pedestal) Triggers (Cosmics, sources) pulsers (auto-induced by DAQ)
Pulsing the electronics (e.g. gives gain-curve) Laser, LED, muons…
Monitoring parameters (on-line) Basic, timing distribution, pulse-height distribution
Needs special triggerNot beam related.Beam off, or in-between.
Need Slow Control
Basic analysis
11 February 2005Edda Gschwendtner19MICE CM Berkeley 9-12 Feb. 05
Summary
Parameter list already quite advanced. Lack of clarity of different categories of parameters-
different meanings… Develop common language
What’s the frequency needed to read the parameters out? Are there any parameters which must be synchronized with
the beam?
Parameters that will give main changes in performance: Vacuum, absorber, magnetic field, alignments, gains,
noise in detectors… These parameters are of interest for simulations.
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