____________________________________________________________________________

      A NEW DRAFT MODULES PROGRAMME: THROUGH TO AUGUST 2000     [1st June 1998]
      _____________________________________________________

[A] Milestones

 _____________________________________________________________________________
                                                             [update: 26.7.98]

       PROVISIONAL DRAFT FOR DISCUSSION of REVISED MODULES PROGRAMME
       _____________________________________________________________

	- Module-2  = prototypes; another iteration anticipated
	- Module-1  = final components, but not from production batch
	- Module-0  = final components from production order

  Modules (Barrel & Forward) :				Proposed/  GT's V5

	- Barrel module design frozen			Oct 98
	- TPG, Beryllia delivered			
	- (b) Module-2 assembled and measured		
	- (b) Module-2 irradiated			
	- (b) Multi-module test
	- (b) Module-2 fully evaluated			Mar 99
              _________________________________________________

	- Forward module design frozen			Oct 98
	- TPG, Beryllia delivered			
	- (f) Module-2 assembled and measured		
	- (f) Module-2 irradiated			
	- (f) Multi-module test
	- (f) Module-2 fully evaluated			Mar 99
              __________________________________________________

	- Barrel & Forward Design review		Apr 99
          ______________________________________________________ 

 	- Assembly tooling review			Apr 99
	- Test and QA procedure review			Apr 99

	- (b) Module-1 assembled			Apr 99
	- (b) Module-1 measured
		 (geometry, thermal, electrical)
	- (b) Module-1 irradiated			Jun 99
	- (b) Module-1 measured
		 (geometry, thermal, electrical)	Aug 99
	- (b) Multi-module test
	- (b) Module-1 fully evaluated			Aug 99
              _________________________________________________

	- (f) Module-1 assembled			Apr 99
	- (f) Module-1 measured
		 (geometry, thermal, electrical)
	- (f) Module-1 irradiated			Jun 99
	- (f) Module-1 measured
		 (geometry, thermal, electrical)	Aug 99
	- (f) Multi-module test
	- (f) Module-1 fully evaluated			Aug 99
              _________________________________________________

        - Module Design Review				Sep 99     Aug 99
          _____________________________________________________

        - Specification for procurement			Sep 99
        - PRR						Oct 99     Sep 99
          _____________________________________________________

        - Call for tender				Oct 99
        - Contract placed				Nov 99
        - Module0 ready for tests			Jan 00     Apr 00
        - Module0 irradiated				           May 00
	- Multi-module test
        - Module0 tests complete			Mar 00     Sep 00
          ____________________________________________________

        - Module assembly QA & test procedure complete	Mar 00
        - Module assembly tooling available		Mar 00
        - Start of module production			Apr 00     Sep 00
        - 10% of module production			Aug 00     Mar 01
          (SYSTEMS TESTS)
          ____________________________________________________

        - 25% of module production			Dec 00     Sep 01
        - Module production complete			Aug 02     Sep 02

          _____________________________________________________

  Note: G.Tappern's SCT Master Schedule is available from the ATLAS EDMS
  web page, http://edms.cern.ch/atlas/ (-> ATLAS -> ID -> SCT), or a copy
  on the SCT module page.


[B] ELECTRICAL MODULES THROUGH TO 10% PRODUCTION

  The general target numbers for module production are for discussion at the
  June 1998 SCT Week:

 _____________________________________________________________________________
  MODULE TYPE:       |      |      |  10% ||             |      |      | 10%  |
       |    B-2      | B-1  |  B0  |Prodcn||    F-2      |  F-1 | F0   |Prodcn|
       _______________________________________________________________________|
       |    1998     | 1999 | 1999 | 2000 ||    1998     | 1999 | 1999 | 2000 | 
       ________________________________________________________________________
       |May to|Sep to|Mar to|Oct to|May to||May to|Sep to|Mar to|Oct to|May to|
       |nd Aug|nd Dec| June |nd Dec|August||nd Aug|nd Dec| June |nd Dec|August|
 _____________________________________________________________________________
 Japan | 1    | 3    | 5    |  8   |  50  ||      |      |      |      |      |
 ______|______|______|______|______|______||______|______|______|______|______|
 USA   | 1    | 2    | 4    |  6   |  50  ||      |      |      |      |      |
 ______|______|______|______|______|______||______|______|______|______|______|
 Scdvan| 1    | 2    | 4    |  6   |  50  ||      |      |      |      |      |
 ______|______|______|______|______|______||______|______|______|______|______|
 UK-B  | 1    | 3    | 5    |  8   |  50  ||      |      |      |      |      |
 ______|______|______|______|______|______||______|______|______|______|______|
 Cen-EU|      |      |      |      |      ||  1   | 2    |  4   |  8   |  60  |
 ______|______|______|______|______|______||______|______|______|______|______|
 CERN/ | 1    |      |      |      |      ||  1   | 2    |  3   |  6   |  60  |
 _G/A__|______|______|______|______|______||______|______|______|______|______|
 UK-V  |      |      |      |      |      ||  1   | 2    |  4   |  8   |  60  |
 ______|______|______|______|______|______||______|______|______|______|______|

 TOTALS| 5    |  10  |  18  |  28  |  200 ||  3   |  6   |  11  |  22  |  180 |
 _____________________________________________________________________________  
 
Approximate Detector needs:
       | 25   |  50  |  90  |  120 |  800 ||  20  |  30  |  50  |  120 |  800 |
_______________________________________________________________________________

  For detector orders [for ELECTRICAL MODULE production alone] this implies the
  following timescales for purchases (with 50% spares/relevant studies, and 6 
  months of fabrication), and also imply order for [working] FE chip sets on 
  the same timescales:

                  Module-2       Module-1     Module-0    10% prod.
      Order by    May 1998       Oct 1998     June 1999    Nov 1999
  __________________________________________________________________________
      Barrel:         75           135          180       1200
      Forward:        45            75          180       1200

      FE chips:      300           600          900       7000
  __________________________________________________________________________