Mucool Test Area Instrumentation

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Mucool Test Area Instrumentation

• University of Illinois (UIUC)
• Debbie Errede, Mike Haney, Zack Conway
• Fermilab
• Mike Shea
• University of Chicago
• Kara Hoffman, Mark Oreglia
• MUTAC _at_FNAL
• Speaker Debbie Errede
• Jan 14, 2003

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University of Illinois Responsibilities

• List of signals for Mucool Test Area
• Instrumentation of Absorber
• - Includes some instrumentation research and
• development
• - Implementation of definitions of safety
• (see D. Allspach) for our use in this area.
• Decision to pass both Fermilab and European
• safety standards for test areawith MICE in
• mind.
• Signals from all cooling channel components to
  our rack and to Fermilab IRMs (internet rack
  monitors) for ACNET access.

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Other Instrumentation Projects

• Bolometry for Beam Profile - University of
  Chicago
• Kara Hoffman and Mark Oreglia
• Fast Timing Cerenkov Detector - Fermilab
• Alan Bross (unfunded to date)
• Magnet and RF Cavity Instrumentation -
• LBL, Fermilab,
• Mike Green, Al Moretti

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Picture of cryo/absorber assembly
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UC Kara Hoffman, Mark Oreglia
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Thin film bolometry for beam profiling
Bolometers detect radiation when it induces a
rise in temperature in materials whose
resistivity is temperature dependent. We have
proof of principle for several materials for a
photon beam (Xe flashlamp, YAG laser).
cryostat
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Beamtests
Weve performed beam tests at Argonne with a 20
MeV electron beam. We are working to evaluate
the results and study sources of background
present in beam conditions.
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University of IllinoisList of Signals in MTA

• Beam Line (Carol Johnstone)
• Beam Properties Measurements (CJ)
• Cryogenics (Barry Norris)
• A. H2
• B. He
• Experiment
• A. Absorbers (Mary Anne Cummings, Edgar Black)
• B. RF Cavities (Al Moretti)
• C. Solenoid (Al Moretti, M. Green)

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Beam Line Elements
Cryogenics
signals
signals

• 750 KeV Chopper 1
• dipole magnets currents 5
• quad magnet currents 13
• stripping foil 1
• collimater positions - 2 units 8
• ion chamber 1
• (in front of beam dump)
• Temperature for quads
• and dipoles 18

• Helium
• inlet temp (carbon) 1
• outlet temp (carbon) 1
• inlet temp (platinum) 1
• outlet temp (platinum) 1
• inlet pressure 1
• outlet pressure 1
• He level 2
• N2 level 1
• solenoid coil temperature 4
• (platinum)

Beam Properties Measurements

• Tune Parameters ? data set
• Beam Position Monitors 20-40
• Toroid Beam Current Monitor 1 (slow response)
• Fast Beam Current Monitor 1 (fast response)
• Beam Loss Monitors 5-10

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Cryogenics

• pump status (run/not) 1
• heater voltage 1
• heater current 1
• heater power 1
• beam permit 1
• hazardous gas 10
• O2 deficiency hazard 8

Hydrogen
signals

• inlet temp(C) 1
• outlet temp(C) 1
• inlet temp (Pt) 1
• outlet temp (Pt) 1
• temperature, other 6
• inlet pressure 1
• outlet pressure 1
• pump delta pressure 1
• H2 supply pressure 1
• H2 vent pressure 1
• H2 vent pipe pressure 1
• cryo vacuum pressure 2
• pump voltage 1
• pump current 1
• pump speed 1

Experiment - RF, Solenoid (outside)

• solenoid current 1
• rad level on chipmunks 10?
• cavity forward power 1
• cavity reflected power 1
• cavity RF level(E-field?) 2
• cavity vacuum level 2
• timing channels 10?

NON DATA

• CCD camera image
• microphone sound byte

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Experiment Absorber
signals

• temperature 8
• pressure transducers (see under cryo)
• laser occlusion sensor 4
• piezo vibration sensors 2
• strain gauges 2
• bolometry 25??
• O2 sensors 3 per each of 5 flanges 15
• O2 sensors on H2 exhaust line 10
• other channels ??

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MICEEstimatedNeedsatMTA(M. Haney)
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MTA InstrumentationData PathsUniversity of
Illinois

1. Determining data sets and pathways from cooling
   channel components to readout.
2. Providing safe pathways to electronics , PC, and
   ACNET.

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MTA Instrumentation Data Paths LabView
Perspective
To PC/LabView consumers
From ACNET sources
Strain, temp
Slow, local signals(e.g. magnet current(s))
temp
Fast, local signals(e.g. piezo transducer)
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MTA InstrumentationData Paths ACNET
Perspective
To ACNET consumers
Strain, temp
Slow, local signals(e.g. magnet current(s))
temp
Fast, local signals(e.g. piezo transducer)
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Instrumentation for Absorber Safety

• Seeking an intrinsically safe solution for
  instrumenting the LH2 absorber in the MTA
• Prudent to accommodate MICEand European safety
  considerations

Two solutions

• Intrinsic safety, if possible
• Limited power per channel
• Good idea for Fermi required for Europe
• Gas-purged enclosure, if necessary
• 19 rack, 40U tall

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Two Possibilities (1)

• Intrinsically safe

Hazard Safe
Sealed Conduit(s)
Barrier(s)
ACNET
IRM
Cryo(temp)
FISO
PC w/16 chan ADC
network
power
Intrinsically safe signal conditioners and
transmitters
UPS
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Two Possibilities (2)

• Gas-purged box

Hazard Safe
Barrier(s)
Sealed Conduit(s)
ACNET
IRM
Cryo(temp)
FISO
PC w/16 chan ADC
network
power
UPS
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Instrumentation Electronics Safety
(basic) Barrier

• MTL7055ac barriers
• Low level AC
• 24 W per line
• 3 V max

• MTL7060ac barriers
• Star-connected AC
• 101 W per line
• 8.5 V max

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Instrumentation for Absorber(currently being
tested in Urbana)

• Lakeshore 218S
• 8 channel cryo temperature monitor
• /- 21m K at 10 K
• 16 readings/s
• GPIB interface (to PC)
• TG-120PL GaAlAs diodes (8)
• -180mV/K at 4.2 K
• B lt 5 T rad hard

• FISO Fiber-optic strain and temperature
• BUS chassis, with 4 (up to 8) modules
• 1000 readings/s
• RS-232 interface (to PC)
• FOS-N strain sensors
• /- 5000 me 0.01 full scale 0.2mm O.D.
• FOT-L temp sensors
• 0.1 K resolution 1.5mm x 32mm (10mm active)
• Slow 1.5 second response

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Instrumentation Electronics for Absorber, etc.

• Gateway E-4000 PC
• 1.8 GHz, 1Gbyte RAM, 0.5Gbyte cache
• 120Gbyte disk, Windows 2000
• 15 LCD flat panel display
• 640x480 CCD camera, microphone
• PCI-MIO-16E-1
• 16 channel ADC, 1.25 Msample/s, 12 bits, /-10 V
• Tripplite Smart UPS
• 3000 VA

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Instrumentation Electronics for ACNET

• IRM
• 64 channel multiplexed ADC
• 16 bit, 100 Ksamples/s
• ACNET network connection
• All PC data will be posted to IRM for ACNET access

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Signals inside the cryostat

• 8 (cryo) temperatures
• readout via GPIB LabView (PC)
• Multiple fibers
• FISO strain, temperature (4)
• Pressure, flow?
• Laser occlusion (2)
• Simple spark detectors (2)
• (light pipe to photodiode)
• 25(ish) 4-wire bolometry strips

• Piezo vibration sensor
• via (16 chan/12 bit) ADC and LabView (PC)
• Local (64 chan/16 bit) IRM channels
• via LabView (see last slide)
• other channels (?)
• placeholder for the future

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Signals outside cryostat

• USB (4 wires, and shield) for CCD camera and
  microphone
• via PC
• Many voltages, currents, temperatures, pressures
• magnets, beam position monitors, etc.
• Most available from ACNET or local IRM
• via LabView (see last slide)
• or Cyro-PLC

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Illinois Grad Student Efforts (Zack Conway)

• LabView interface
• GPIB to cryo temp monitor - works
• PC-internal ADC (e.g. for piezo) works
• Simple ADC data read - works
• High rate collection and compression not yet
• IRM communications
• IRM-ADC Read - works
• Write
• Integration remains
• RD of FISO temp/pres transducers
• - presently dipping temperature transducers
  into
• liq N and comparing with diode that is
  known to
• operate in this temperature region.

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Illinois Grad Student Efforts (Zack Conway)
FISO RD

• FISO strain and temp sensors
• Not officially rated below -40 C (!)
• Temp has been used at 35 K (custom) by others
• No experience with strain gages
• Company very willing to work with us
• To adjust signal conditioner, correction curves,
  etc.
• Will require some form of agreement
• Yet freedom to use and publish measurement

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Physics Lab 1 Setup (In Urbana)

• Left to right Computer, FISO
• Bus system, and Lakeshore 218 temperature monitor

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• FISO Bus System
• Using RS-232 to communicate with Bus system
• 4 signal conditioners(room for 4 more)

• Lakeshore 218 temperature Monitor
• RS-232 GPIB
• 8 channel temperature monitor
• Using GaAlAs diodes to monitor temperature

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• Internet Rack Monitor(IRM)
• 64 A/D channels and 64 bits of D/A

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Time schedule MTA(M. Popovic)

• Fall 03 - Beneficial occupancy get into
  building and start installing things.
• 6 mos. (Winter 2004) to install experimental
  apparatus cryo system safety systems liq H2
  filling system instrumentation
• Choice Fill w. something else besides liq H2.
• Convection-style absorber Japanese absorber
  ready to be tested
• 3 6 mos. for filling and experimenting (2
  absorbers)
• deinstallation and installation schedule
  inefficiency due to cryo/Tevatron
• we are running parasitically wrt cryo
  systems, Linac Operations and maintenance.
• June 04 Beam related hydrogen absorber test.
• Sept 04 Short fully integrated Cooling Section
  hydrogen absorbers, Be-window RF cavity,
• superconducting solenoid
• Sept 04 High power RF Test Be-window RF
  cavity
• 
  Grid based RF cavity
• - both 200 MHz and805 MHz

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AccomplishmentsIllinois

• Hardware acquired
• PC, FISO, Lakeshore (temp), IRM, etc.
• All major items
• Piecewise software written
• IRM communications to, from
• Lakeshore readout
• FISO readout
• All major elements
• Intrinsically safe solutions (barriers)

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Current Plan Illinois

• FISO qualification of temp/strain sensors at
  cryogenic temperatures
• Full software integration
• Of piecewise solutions, in hand
• Cable plant into solenoid
• Shielding, filtering, protection
• both against noise, and surges

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Open Issues Illinois

• WireShielding Concerns
• Noise/sensitivity issues due to wirebarrier
  resistance?
• Approx 12 W /ft for 36 AWG manganin wire
• 48 W to 202 W added by barrier
• And diode capacitance
• Common mode (surges) due to magnets?
• Need to protect electronics without burning
  barriers for example during magnet quench.
• Cable plant into solenoid

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Summary

• List of signals continues to be updated (UIUC)
• Intrinsically safe solutions are being pursued.
  (UIUC D. Allspach and larger cryo group )
• Illinois (UIUC) focuses on instrumentation of
• absorber and interface to ACNET/Fermilab
• - development of FISO transducers
• (white light optics) which are rad hard
  
• (Brookhaven test H. Kirk) for use at
• low temperatures (liquid H, He, N) in
• conjunction with FISO company.
• University of Chicago (K. Hoffman, M. Oreglia)
  continues to make progress on Bolometry efforts,
  including photon beam test results, with electron
  beam data under investigation.