From: SMTP%"richterr@mppmu.mpg.de" 17-JAN-1997 20:06:28.24 To: SCT-detector/ SCT-fwd CC: Subj: 3 corrections to SCT-fwd minutes from jan., 14th Dear collegues, this is an updated version of the minutes: 1.) in the job list there is a correction to the line silicon modules. 2.) Alex sent a comment to Wladek's talk concerning chip availibility. 3.) Please not that the meeting is now at the BEGINNING of the week, as already mentioned in Neil's Draft Agenda. Best regards, Robert. --------------------------------------------------------------------------- Corrected minutes + comment from A.Grillo on chip availibility --------------------------------------------------------------------------- +-----------------------------------+ | | | Meeting of the SCT-fwd | | | | CERN, nov., 28th, 1996 | +-----------------------------------+ Minutes ------- 1.) Discussion of SCT-fwd organisation -------------------------------------- The concept of production clusters as presented during the Munich workshop (may, 20-23) has not yet been worked out in detail. The original idea was that production should be concentrated at the laboratories where most technical manpower and other resources are available. Parallel work and parallel developments should be avoided, wherever possible. An important question w.r.t. resoure allocation is what CERN, Oslo, Geneva Univ. want to contribute. At the Munich workshop these institutions were presented as the "Geneva Cluster". A contribution from these institutions was felt a necessity in order to match the SCT-fwd task to the resources. The discussion showed that people want a maximum of clarity w.r.t. the distribution of work inside the SCT-fwd community. In this sense it is very important that institutes express their resources and level of engagement. In particular the concepts for procurement/production of the big items like disks and modules should be defined soon. In contrast to the barrel the SCT-fwd has 3 different types of modules. A good framework for discussion could be the tree-structure of the PBS (Project Breakdown Structure), which will be part of the TDR (see next point). 2.) Concept of the PBS and distribution of work ----------------------------------------------- M. Edward introduced the concept of the PBS, which ia a tree-structured list of items, needed for the final detector. (E.g. tools do NOT belong to the PBS.) A complement to the PBS is the WBS (Work Breakdown Structure), which defines work and resources needed for the items of the PBS. In the collaboration G. Bachy is responsible for the overall PBS. A first discussion of the concept of the PBS has already taken place in the EB. There was agreement of making a first, tentative assignment of institutes to the items of the PBS. A second iteration is planned for the next SCT-fwd meeting. Question marks in the list mean that either a institution has not yet made a full decision to work on a given item or there was no representative of an institute at the meeting. The following list was produced: Wheels, disks NIKHEF UK to assemble modules onto UK-made wheels (Liverpool) Melbourne? Produce disks in australia. Space frame (support structure for wheels) RAL External support (space frame to rails) RAL? Local services UK (UCL), Ljubljana? Silicon wafer testing MPI, UK (Lancaster, Sheffield), Geneva Univ. Silicon modules MPI, UK (Liverpool, Manchester, Glasgow, RAL, ...), Geneva Univ., Valencia, Melbourne, Freiburg, Prag Univ. Frames (mechanical structure of modules) MPI?, UK, NIKHEF? Hybrids Liverpool (designing & testing of prototypes), RAL, Oslo?, Valencia? Alignment Oxford? Cooling RAL, Geneva?, Prag? Data links ? Power supplies UCL, Prag Acad. Sci., Cracow This list is only meant to be a starting point for a discussion on matching jobs to resources. M. Edwards volunteered to produce an iteration of this list. This would also give the necessary input to the WBS. It was mentionned that some jobs were particularily labour-intensive (module production etc.). A careful analysis of the manpower resources together with the institutes involved is necessary. 3.) Status of FE-chip production with DMILL (W. Dabrowski): ----------------------------------------------------------- A version for analog (SCT-A) resp. binary (SCT-B) readout is in production. A small series delivery is expected for jan. 97; results will be known by end-of-february. The analog and the binary chip comprise 128 channels each. The ABC backend will be added to the SCT-B if the prototype works correctly. An engineering run (MATRA) with 6 wafers (6 inch) will then be submitted by april 97, which is expected to yield several hundred chips. If everything goes well, a sufficient number of good chips will be available for the summer-test of Si-detectors. Next meeting: 27./28., jan., 1997 (monday/tuesday). ------------- Preliminary agenda: see mail from Neil Jackson from jan., 16th. ------------------- ======================================================================== Comment from Alex to availibility of FE-chips in 1997: ======================================================================== Hello Robert, Concerning the FE electronics, I hope that there will be sufficient chips from the present SCT128B fabrication to get some into this summer's beam test. That will allow a good comparison of the SCT128B along with the CAFE/CDP128. And the SCT128B was designed with the same backend protocol to facilitate that. I believe Oslo is now designing a hybrid for this purpose. The submissions to Maxim and Honeywell for CAFE-M and ABC are slipping but hopefully we will have chips for the summer's beam test. We have ordered 6 wafers of each to provide chips for both barrel and forward module development. The collaboration will have to decide how to divide up the chips. And then this will be followed by the DMILL version. The point I'm trying to make is that there are actually 4 sets of chips coming at different times and all should be tested in some fashion on modules: CAFE/CDP128 available now in existing modules for testing LIBIC/CDP128 still availble for modules SCT128B availabe feb or march CAFE-M/ABC available may or june SCTB (or ABCD I'm not sure what name people like) aug or sept Of couse this represents a lot of work to get all into modules and I'm not sure how many different types of modules we need but at least the barrel and one forward version would be a good idea. regards, Alex