3/19.2007 1

MTA PROFILE MONITOR REVIEW

MTA PROFILE MONITORS

Gianni Tassotto

3/19.2007 2

MTA PROFILE MONITOR REVIEWReview

• Vacuum cans• Wire assembly• Electronics• Cost estimate

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MTA PROFILE MONITOR REVIEW

“Standard”

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MTA PROFILE MONITOR REVIEW

“Bayonet”

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MTA PROFILE MONITOR REVIEW

UT multiwire

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MTA PROFILE MONITOR REVIEW

Other vacuum cans

• SY type (SWIC only)• Wire pitch = 1 mm• Lz = 18 inches

• KTeV type (Battle ship)

• Pitch 0.125, 0.250, 0.5 mm

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MTA PROFILE MONITOR REVIEW

KTeV target multiwire

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MTA PROFILE MONITOR REVIEW

Dimensions

• Standard vac box:• Length (flange to flange) = 16

inches• Height = 11 15/16”• 6” coupling to beampipe and

top for wire assembly• Provision for 4” CF flange on

bottom for ion pump

• UT:• Length = 10 inches• Mounted at 45 degrees

• Bayonet:• Length = 6 1/4 inches• Vac. Box: 14 X 14 3/16”• Height (with motor)= 44 1/2”• 6” coupling to beamline• No provision for ion pump port

• KTeV:• Length = 13.45 inches

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MTA PROFILE MONITOR REVIEW

Ceramic boards

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MTA PROFILE MONITOR REVIEWWire plane assemblies

• Ecool: steel frame with invar board • Standard ceramic board

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MTA PROFILE MONITOR REVIEW

Wire type

• AuW wire - 25 m (NuMI and ecool), 75 m in beamlines

Pitch: 125 m (wire wound at 250 m on both side of ceramic board

and offset by 125 m), 250, 500 m

• BeCu wire - capability from 25 m to 600 m as in old swics

• Ti strips - University of Texas multiwires use 5 m thick material, 0.2 mm wide.

Pitch 0.5 mm (both side of board), 1 mm.

3/19.2007 12

MTA PROFILE MONITOR REVIEWElectronics

• AD scanner - 96 channel integrator (Al Franck)

• Integration time from 5 msec - 6.5 sec

• Dynamic range: E10 up

• 16 bit ADC

• Noise 0.2% of full scale

• Calibration feature

• Scanner II - Z-80 based processor. Has video output.Will require software work to interface to computer.

3/19.2007 13

MTA PROFILE MONITOR REVIEWWhat’s available

• 5 Standard vacuum box

• > 10 bayonet style vacuum cans in beamlines

• Parts to build 5 wire plane assemblies for standard multiwires

• Modify and refurbish bayonet style vacuum cans - also most of them are class 1

• Enough motor controllers to run 10 devices

• 2 spare scanners only - can multiwires be OR’d?

3/19.2007 14

MTA PROFILE MONITOR REVIEWCost

• Vacuum can: Standard: $2300 newBayonet: $1000 for modifications

• Wire plane ass’y: $1500 ea (includes $350 for ceramic board)

• Complete UT multiwire $7500

• Electronics: scanner $2000 ea Front end* $10,000 for complete system (10) Motor controllers 0 (available)

• Wire $5/ft

* Includes VME crate $2000 (1), CPU card $3000 (2) and arcnet card $1000 (2).