MICE CM Berkeley 9-12 Feb. 05 11 February 2005 Edda Gschwendtner 1 Parameter List Edda Gschwendtner Introduction Parameter list for sub-systems of MICE

11 February 2005Edda Gschwendtner1MICE CM Berkeley 9-12 Feb. 05

Parameter ListEdda Gschwendtner

Introduction Parameter list for sub-systems of MICE Implementation in DAQ


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


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


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?


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,…


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


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


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


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


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


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


TOF (Bonesini)

Physics parameters Pedestal

CM Parameters HV Temperature Magnetic field


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


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


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


DAQ (TRD)


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!


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


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.

Documents

MICE CM Berkeley 9-12 Feb. 05 11 February 2005 Edda Gschwendtner 1 Parameter List Edda Gschwendtner Introduction Parameter list for sub-systems of MICE