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Mucool Test Area Instrumentation

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Cryogenics (Barry Norris) A. H2. B. He. Experiment. A. Absorbers (Mary ... Cryogenics. inlet temp(C) 1. outlet temp(C) 1. inlet temp (Pt) 1. outlet temp (Pt) 1 ... – PowerPoint PPT presentation

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Title: Mucool Test Area Instrumentation


1
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

2
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.

3
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

4
Picture of cryo/absorber assembly
5
UC Kara Hoffman, Mark Oreglia
6
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
7
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.
8
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)

9
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

10
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

11
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 ??

12
MICEEstimatedNeedsatMTA(M. Haney)
13
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.

14
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)
15
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)
16
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

17
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
18
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
19
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

20
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

21
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

22
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

23
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

24
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

25
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.

26
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

27
Physics Lab 1 Setup (In Urbana)
  • Left to right Computer, FISO
  • Bus system, and Lakeshore 218 temperature monitor

28
  • 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

29
  • Internet Rack Monitor(IRM)
  • 64 A/D channels and 64 bits of D/A

30
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

31
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)

32
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

33
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

34
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.
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