# Presentation: 559594

##  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 @FNAL
- Speaker: Debbie Errede
- Jan 14, 2003

## 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 area...with MICE in**
**      ****mind.**
**Signals from all cooling channel components to our rack and to Fermilab IRMs (internet rack monitors) for ACNET access.**

## 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

-     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

- Other Instrumentation Projects

## Picture of cryo/absorber assembly

**UC**** **Kara Hoffman, Mark Oreglia

## 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

## Beamtests

- We’ve 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.

## University of Illinois:List 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)

## Beam Line Elements

**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**

- # signals

**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**

**Beam Properties Measurements**

**Cryogenics**

- 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)

- # signals

## Cryogenics

- 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

- 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**

**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**

- # signals

## Experiment – Absorber 

- 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					??

- #signals

## MICEEstimatedNeedsatMTA(M. Haney)

## MTA InstrumentationData PathsUniversity of Illinois

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

## MTA Instrumentation :Data Paths: LabView Perspective

- Strain, temp

- temp

- Fast, _local_ signals(e.g. piezo transducer)

- Slow, _local_ signals(e.g. magnet current(s))

- From ACNET sources

- To PC/LabView consumers

## MTA Instrumentation:Data Paths: ACNET Perspective

- Strain, temp

- temp

- Fast, _local_ signals(e.g. piezo transducer)

- Slow, _local_ signals(e.g. magnet current(s))

- To ACNET consumers

## Instrumentation for Absorber  : Safety

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

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

**Two solutions**

## Two Possibilities (1)

- Intrinsically safe

- UPS

- PC w/16 chan
- ADC

- FISO

- Cryo(temp)

- IRM

- Barrier(s)

- network

- ACNET

- Sealed
- Conduit(s)

- Intrinsically safe signal conditioners
- and transmitters

- power

- Hazard   Safe

## Two Possibilities (2)

- Gas-purged box

- UPS

- PC w/16 chan
- ADC

- FISO

- Cryo(temp)

- IRM

- Barrier(s)

- network

- ACNET

- Sealed
- Conduit(s)

- power

- Hazard   Safe

## Instrumentation Electronics Safety

- MTL7055ac barriers
- Low level AC
- 24  per line
- 3 V max

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

**(basic) Barrier**

## 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 < 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 ********; 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...**

## 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

## 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

## 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...

## 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

## 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
- R&D 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.

## Illinois Grad Student Efforts (Zack Conway)

- 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_

**FISO R&D**

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

- Bus system, and Lakeshore 218 temperature monitor

- Physics Lab 1 Setup **(In Urbana)**

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

- 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

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

- 64 A/D channels and 64 bits of D/A

## 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**

## AccomplishmentsIllinois

- 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)

## 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

## Open Issues Illinois

- Wire+Shielding Concerns
- Noise/sensitivity issues due to wire+barrier resistance?
- Approx 12  /ft for 36 AWG manganin wire
- 48  to 202  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

## 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.