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New Testing ResourcesGary Varner

Some resources in Hawaii Experience from developing integrated

readout systems

6-OCT-2010 Electronics GPC Review

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ContextAccess to multi-project infrastructure

(radio-neutrino, x-ray FEL, Super KEKB upgrade…)

• Test beamline in Watanabe Hall commissioned this fall• intense flux, ~1ps timing

• Access to an array of high quality test equipment• Expect Hawaii to play an expanded test/characterization role

• ASIC input coupling studies• System timing performance• Integrated detector results

• Key deliverable: papers for students and postdoc

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Bremsstrahlung x-ray source: UH FEL

Target:Thin Cu foil

1 mil

VacuumAl Exit

Window

5 mil10 mil polyethylene

Helium filled transport line

~15”

Air Plas

tic c

over

`Ac

tive

Si

Bulk

Si

1mm 2.4um

300 um

Carr

ier

FR-4

(PCB

)

62.5 mil200 um

First x-rays: September 2010!!!

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FEL = very tight bunch specs ~ 1ps timing probeTarget:Thin Cu foil

1 mil

VacuumAl Exit

Window

5 mil10 mil polyethylene

Helium filled bag/volume

~15”

Air Plas

tic c

over

`Ac

tive

Si

Bulk

Si

1mm2.4um?

300 um

Carr

ier

FR-4

(PCB

)

62.5 mil200 um

Ebeam = 40MeV200mA e-

Macropulse

BaF2

radi

ator

10 mil BaF2

SinglePulse

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Readout for FEL x-ray beamline

Detectors

ASICs

Front-endModule

MasterModule Giga-bit

Fiber links

cPCI crate (control room)

NewcardCPU

X-rays

Master module

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Mono-chromatic x-ray Source

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Front-end Electronics studies

J-F Genat, G. Varner, F. Tang, H. FrischNIM A607 (2009) 387-393.

G. Varner and L. RuckmanNIM A602 (2009) 438-445.

1GHz analog bandwidth, 5GSa/s Simulation includes detector response

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Another exampleDetailed input characterization

• ANITA and Askaryan Radio Array (south pole) require high quality RF electronics characterization equipment:

• 8 GHz, high sensitivity Network analyzers

• Noise figure meters• TDR• Fast impulse generators

In addition to piLas and other resources mentioned previously

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Ice Radio Sampler (IRS)RF input coupling (S11)

P. Gorham -- measurement

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Ice Radio Sampler (IRS)

P. Gorham -- measurement

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SummaryThere is a HUGE amount of firmware and readout

software development work still

• Use overlap with other projects to bring additional resources to bear• Exploit existing capabilities for detailed characterization and insight into ways to improve ASIC/system performance• Both xFEL commissioned and new test equipment since last GP Review

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Backup Slides

Some background context…

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