22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 1

Leveraging HEP Silicon Technology (Example: VA Chip Application to PET)

Geoffrey TaylorThe University of Melbourne

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 2

HEP micro-strip technology• (2-D detectors are still at cutting edge…)• 1-D detectors/readout well established.

– Single/double sided; various geometries; AC/DC coupled; …Single/double sided; various geometries; AC/DC coupled; …

• Silicon Strip Detectors are very mature technology – several manufacturers

• Readout Chips for Strip detectors mature technology, available, customized or off-the-shelf.– Many variants, much experienceMany variants, much experience..

• Applications of this technology are now widespread. – A lot can be done without in-house chip development.A lot can be done without in-house chip development.

• Participation in HEP detector development provides a great jumping off point for such applications, ( BUT not essential for getting value out of this spin-off.)

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 3

Belle SVD Ladder Assembly

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 4

ATLAS

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 5

The ATLAS Semiconductor The ATLAS Semiconductor TrackerTracker

Endcap

BarrelBarrel

Endcap

4088 Modules61.1 m2 Silicon15,392 Wafers

6.3 million Strips

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 6

SCT Forward Silicon Modules

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 7

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 8

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 9

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 10

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 11

H8 Setup – Barrel Sector

Morpurgo

magnet,

not used

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 12

Infrastructure and Expertise

• Probe Station, IV, CV, equipment.• Circuit design/prototype/construction.• Precision assembly, measurement• Wire Bonding Facilities• DAQ systems (VME)• Analysis• Clean Room, Services

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 13

Future Australian HEP Instrumentation Developments

• Continue with ATLAS/SCT production and installation.

• Participate in Super-Belle SVD upgrade.• Pixel detector development:

– Future Vertex/Tracking detectors:

• Super-Belle SVD; ATLAS tracker upgrade; Future LC

– Synchrotron Detector Development

– Other Imaging Applications (eg. PET)

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 14

VA Series Chips

• VA2 Chip (IDE As, Norway) – 128 Channels

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 15

VA Operation

• Typically 128 channels• Low noise, depending upon

shaping time• Serial readout: ~5MHz, 20-30usec

readout.• Timing?

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 16

VA-TA chips

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 17

VA-TA Option

• 75nsec fast shaper • Upper and lower

thresholds.• OR’ed output from entire

chip• Can trigger readout of

analog section.

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 18

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 19

Depth of interaction in PET resolution

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 20

PAD Array (Spa, Kiev)

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 21

Crystal Array

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 22

Test Module – MSc Project, Jo Culpepper

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 23

The Wollongong Gantry

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 24

• Backside Trigger using Amptek A250

A250 trigger signal

Pixel array signal uniformity

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 25

Future Projects with 1-D Silicon/Readout

• Mythen –

Mythen Project – SLS(B. Schmidt)

22nd June, 2004 New Zealand - Australia Semiconductor Instrum'n W'kshop 26

Proposal for NZ-Australia Project

(In addition to high-tech pixel development for HEP and applications ….)

• PET detector collaboration???• Development of high performance powder

diffraction detector for the Australian Synchrotron???

… Fast path to silicon expertise/applications