P. Shanahan June 13, 2003 1

Near Detector Electronics Status

• Status

• Production Issues

Peter Shanahan

FNAL

MINOS Collaboration Meeting

June 13, 2003

P. Shanahan June 13, 2003 2

Near Detector Electronics

MASTERModule

MINDERCrate

Trigger/Keeper

MINDERmodules

MA

ST

ER

Crate

Control

Read-Out Channel 0

Read-Out Channel 1

Read-Out Channel 2

Read-Out Channel 3

Read-Out Channel 4

Read-Out Channel 5

Read-Out Channel 6

Read-Out Channel 7

1818181818181818

MASTER MODULEVME Read-Out Board

Front End Crate

KE

EP

ER

68

Rea

d-O

ut B

uffe

r

VME Computer

Located Near MUX BoxEach Crate Hosts 16 MINDERs

Located in Front End VME Crate

VMEBackplane

Located in Front End VME Crate

Trig

ger

VM

E In

terf

ace

Each MINDER Module supports16 Channels, or 1/4 PMT

Each MASTER supports8 MINDERs, or 2 PMTs

VME Clock Fanout

RF ClockNUMI Interface

Tim

ing

MIN

DE

R

MIN

DE

R

MIN

DE

R

MIN

DE

R

MIN

DE

R

MIN

DE

R

MIN

DE

R

MIN

DE

R

GRD991101

To Other Crates

Component Count (not counting ~10% spares):

9328 MENUS

583 MINDERS

81 MASTERS

P. Shanahan June 13, 2003 3

Near Detector Electronics Status

• Schedule Status (BCWP/Total Budget):• 88% (April 03)

• All WBS 2.3.1 system components are in production• Problems with MENU startup

• All Printed Circuit boards in Assembly phase (or done…)

• Thorough checkout in progress

• All power supplies received/ crates in progress

• WBS 2.3.6• Auxillary systems (timing)

* Minder Timing Modules, Clock Fanouts, Master Clock Controller done

* Redesign of VME Timing Module for flexibility

P. Shanahan June 13, 2003 4

MENU Production

• Front-end daughter card• Supports and reads out QIE

• Stores digital data in pipeline

• 9328 in system

• 1440 plus spares required for CALDET

P. Shanahan June 13, 2003 5

MENU Production Problems

• Sporadic production startup:

• Fabrication

• Solder on gold contacts – not noticed until fabrication began.

• Vendor has accepted responsibility: inspection+new boards

• Vendor inspection insufficient (no microscope on QC line!)

• Assembly

• Incorrect 1st articles

• Overheated “burn-in” by vendor on 200 boards

• Poorly tuned initial automated optical inspection by vendor

• Wrong solder flux on several hundred boards

• All problems addressed by vendor

• Production has finally reached steady rate with consistent quality

• Much effort on 14th floor: Lou Dal Monte, Merle Watson, Charlie Nelson

P. Shanahan June 13, 2003 6

MENU Good News

• 5000 boards in hand

• Checkout rate of boards with no acute problems is >90%• Assumed 67% in checkout schedule• Thorough checkout of all MENU

functionality

• IIT Undergrads for Checkout• Resident at FNAL for 5 weeks• Will later take test-stand to IIT• Very helpful in meeting CALDET

schedule

• Long-term production• Rate of 330/wk will complete

production by 12/31/03

P. Shanahan June 13, 2003 7

Argonne Checkout

• MINDERS, MASTERS, KEEPERS• Minders loaded with MENUs

• Full system tests• Dave Reyna: Pedestals, DC Calibration• Tests virtually all aspects of the entire system

• Lower Level Testing• Gary Drake, Bill Haberichter, Tim Cundiff, et al.• Testing all bits, reading/writing all registers, etc

• Checkout done with a few sets of PROMs• Final PROMs will be burned post-CALDET

• Shipping for CALDET in progress

P. Shanahan June 13, 2003 8

2003 CALDET Run

• Sept. 4 – Oct. 4, 2003

• 1440 channels on Near Detector Electronics• Full instrumentation of 1 side (actual ND is one sided)

• Near only, and Near/Far running

• Production calibration of Near response• ND Electronics is principle focus of run

• Ship electronics in late June • L3 milestone 7/7/03

• Move to beam enclosure 8/18/03

P. Shanahan June 13, 2003 9

Near Detector Electronics Status

Item Number for Detector

Operation

Number for CALDET Operation

Assembled Number in Hand/Checked out

Comments

MENUs 9328 1456 5000/3000 90% passing checkout

MINDERs 583 91 150/100 Will burn final proms after CALDET

KEEPERs 45 8 All/15 “ “

MASTERs 81 16 71/21 “ “

MINDER CRATEs 45 8 10 Prep will do production checkout

MINDER PS 45 8 All/9 Prep will do production checkout

MASTER CRATEs 9 2 All/11

MASTER PS 9 2 All/3

VME Timing Module 10 2 4 Final Prototypes for CALDET

Minder Timing Module 45 8 45/42 ~few need repair post-checkout

Master Clock Controler 1 1 All Beam info interface test pending

Clock Fanout 6 1 All Beam info interface test pending

Spares (~10%) not included in this table. Various Auxillary cards not included

•All modules have CALDET quantities met

P. Shanahan June 13, 2003 10

Summary

• Near Electronics Production is Well Underway• All boards in assembly (or done!)

• CALDET quantities are met

• Thorough Checkout in progress at Argonne, FNAL• IIT help on MENU checkout

• Production appears well on schedule for detector installation