Brian Keeney, SCIPP trip to LLU, May 2, 2001 Status of Development on Silicon Telescope For...

Brian Keeney, SCIPP trip to LLU, May 2, 2001

Status of Development on Silicon Telescope For Nanodosimetry

Santa Cruz Institute For Particle Physics

University of California, Santa Cruz

2


Definition of Work

• Mechanical Integration:– ASIC’s on MCM’s– Connector on MCM– SSD’s and MCM’s– Modules in Vessel

• Electronic Integration:– Layout of MCM– Link Between Module and SSD– Link Between Module and DAQ

• Cables and Connectors

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Components of TelescopeITEM Components Description Questions STATUS Date

Complete

Module

Frame Machine in-house.

G10 seems obvious choice.

Is exact thickness of G10 important? Do we want two different designs for single vs. double-sided? How is module fastened to vessel?

Not done. 6/1/01

MCM

Physical Hybrid Actual PCB that components are mounted on

Design is complete, bids are actively being sought out.

6/1/01

ASICS Front-end Readout Chip, Controller Chip

Have limited supply, new chips are being acquired.

Done

Components Connectors and passive circuitry

Components are being acquired 5/25/01

Detectors Silicon microstrip detectors.

We don’t know if the double-sided detector is functional.

Patrick is testing the detectors presently 5/25/01

4



Complete

Module




Not done. 6/1/01

MCM



6/1/01


Have limited supply, new chips are being acquired.

Done



Detectors Silicon microstrip detectors.

We don’t know if the double-sided detector is functional.


5


Module Frame

6


6.4

2.7

9.1

10cm PCB

.8

Module Overview

7



Complete

Module




Not done. 6/1/01

MCM



6/1/01


Have limited supply, new chips are being acquired. Done



Detectors Silicon microstrip detectors. We don’t know if the double-sided detector is functional.


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GLAST Tracker

9


Wire Bonding

10


One Detector

11


75 m

il

3.5

cm

6.5 cm

LLU MCM2560 mil

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ITEM Components Description Questions STATUS Date

Complete

CABLE 3M twisted pair cable and connectors

30 pin connectors, 30 wires, 29 wires used.

Is there agreement on the mixed serial/parallel method?

Not built. 7/1/01

DAQ Repeater Card(?),

DAQ card

Sends commands to module and reads out data.

We should use the same DAQ eventually, to head off compatibility problems.

SCIPP currently uses a custom DAQ. 7/1/01

Components of Telescope

13


Front Board Back BoardVessel/DAQ

Cable

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Minimizing Errors

• Mechanical errors– Spatial conflict– Out-gassing– Pressure(explosion/implosion)

• Data errors– Use Identical DAQ– Test MCM with charge injection

15


16


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Minimizing Errors

• Avoid Mechanical errors– Spatial conflict– Out-gassing– Pressure(explosion/implosion)

• How big do ventilation holes need to be?

• Avoid hardware errors– Use Identical DAQ– Test MCM with charge injection

18


= Air Hole

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Minimizing Errors

• Calibration/ Readout Errors– Patrick will discuss this subject

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Brian Keeney, SCIPP trip to LLU, May 2, 2001Schedule

ITEM Components Description Date Complete

Module

Frame Have G10. Need final dimensions. Will machine in-house. Lead time is ~2 weeks.

6/1/01

MCM

-Physical Hybrid Design complete. Seeking bids, construction lead time is ~2 weeks. 6/1/01

-ASICS Have all front-end readout chips. Have some controller chips, are acquiring more to replenish supply.

Done

-Components Need to order passive components and connectors. Lead time is on the order of 2 weeks.

5/10/01

Detectors Have detectors, and have tested single-sided detectors. Need to check double-sided to see if able to be used.

5/20/01

Module Completion: 7/15/01

CABLE 3M twisted pair cable and connectors

Connectors need to be bought. If cable can be found with shorter intervals of twisted between ribbon sections it would be good. Lead time is ~1 week.

7/1/01

DAQ Repeater Card(?), DAQ card SCIPP eventually needs to buy a DAQ identical to LLU’s. 7/1/01

Single-sided SMD Telescope Completion Date: 7/20/01

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Schedule

Part/ Task Person accomplishing Date

Detector testing Patrick 6/20/01

MCM fabrication Brian 6/1/01

MCM Components Wilko/ Brian 5/20/01

MCM Loading Brian 7/5/01

MCM Testing Wilko acquiring test device, Brian/Patrick Testing

7/15/01

Cable Construction Brian/Patrick 7/5/01

DAQ Purchase Vladimir/ Wildo 7/5/01

Module Assembly

MCM Delivery ? 7/20/01

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Schedule

Part/ Task Person accomplishing Date

Module Testing at SLAC ? 7/15/01

MCM fabrication Brian 6/1/01

MCM Components Wilko/ Brian 5/20/01

MCM Loading Brian 7/5/01

Cable Construction Brian/Patrick 7/5/01

DAQ Purchase Vladimir/ Wildo 7/5/01

MCM Testing Wilko acquiring test device, Brian/Patrick Testing

7/15/01

Module Assembly

MCM Delivery ? 7/20/01

Brian Keeney, SCIPP trip to LLU, May 2, 2001 Status of Development on Silicon Telescope For...

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