Front-end electronics meeting during LHC-B week

Front-end electronics meeting during LHC-B week

From:
Date: 8/26/98
Time: 6:47:21 PM
Remote Name: 137.138.117.88
Remote User: lhcb

Comments

Dear LHC-B collaborator

I hope you all had a good and relaxing holliday.

Since the last LHC-B week it has been a holliday period and it is my feeling that there has not been any major progress on the front-end electronics for LHC-B ( I may though me wrong on this, please let me know if this is the case).

For the electronics meeting during the LHC-B week I would like to invite a person from each sub detector to present their progress/status if some new things have occurred since last LHC-B week.

A general subject I would like to discuss during the meeting is once again how to get started with simulations of the general front-end architecture. We will in the beginning need a few people located at CERN for some months to build up a general front-end simulation model/frame-work. This general simulation model will be at a high abstraction level ( behavioral model ) not taking into account all the specialities of each sub detector. This model will enable us to verify the major parameters of the front-end electronics and become a kind of guideline for the design of the front-end electronics. This general model must then be refined for each sub-detector to include all their specific characteristics and problems. The different front-end implementations must then be simulated together to see if the behavior of each sub-detector complies with the general model and no problems are found in running the different implementations together in the compleate front-end system.

The LHC-B front-end architecture is very sensitive to the correct function of the bunch crossing synchronisation, L0 accept-reject synchronisation, prevention of L0 derandomizer overflow, L1 accept-reject, etc. LHC-B is especially sensitive to these problems because of the very high L0 accept rate ( 1 MHZ compared to the other LHC experiments being below 100 KHz).

We need to identify people who are interested in this kind of work and how we can get started as soon as possible. The ideal would be to find a person from each sub-detector who can contribute to the general simulation model and then later implement the detector specific model. To get a good start on this I consider it to be vital that this work is started in a common place (CERN) using an appropriate tool ( VHDL, Verilog, Foresight). If people from other groups ( Trigger, DAQ ) whats to make simulations with similar tools I would appriciate their presence at the front-end electronics meeting.

I will try to find the required resources to get a CERN fellow and/or a project associate to work on the general front-end simulation. Please let me know if you would be interested in such a work or know of a good candidate.

A second point is to get some input on how we (I) organise the LHC-B electronics web pages. I can make it like a living document containg all important parameters and a compleat definition of the front-end architecture. Alternatively I can make it more simple with just meeting agenda's and minuttes of meetings and some pointers to LHC-B notes. All suggestions on this matter is wellcome during the meeting.

Priliminary agenda:

Status/progress reports from different sub-detector groups.

Simulation of LHC-B front-end electronics. (discussion)

LHC-B electronics web pages. (idea's, comments, etc.)

Hope to see you at the meeting

jorgen