Summary of planning discussions in late November 2000 with the project managers by J. Elias.

1. High Voltage system for HPD's
   The package is nearly complete with custom software being done in Sofia by a commercial outfit and PVSS II integration plus the control panel being done at CERN by S. Sergueev.
   The remaining tasks are:
   • documentation and a user's manual
   • commissioning with the first hardware prototypes, probably in March, at CERN

2. Low Voltage system for the front-end electronics
   This is a completely new task and everything has to be written from the driver level up to the PVSS II control panel. A top-down design is needed before writing code can begin. Also, documentation, a user's manual, and commissioning are part of the task.

3. Radioactive source calibration system
   The principal task is to modify an existing CDF package as needed and integrate it into PVSS II. The HCAL system is rather complex in that a fast single-board VME processor is doing the data acquisition and making the strip charts, one or more PCs are controlling the sources, and a PVSS II view node is running the user interface. An overall design is needed before implementation can start. Coordination with UIC (VME processor) and Purdue (source mover and CDF package) is necessary. We expect assistance from Purdue in modifying the CDF package. If there are serious problems with this approach, then we save only the device drivers and start from scratch, again expecting assistance from Purdue.

4. Laser/LED calibration system
   The task is to integrate the stand-alone bat. 186 laser system into PVSS II to gain some early experience with PVSS II for Kurtis and Laza. Subsequently, they would design and implement the final laser/LED control package for use in the alcoves at point five. Coordination with UIC is necessary as the VME processor is doing the data acquisition and preprocessing. Coordination with Fermilab is necessary in order to write a device driver for the LED.

5. CAN fieldbus system
   There are two parts to this task, programming for the RBX control interface board and designing the PVSS II package for the head end of the CAN bus. The control interface board will probably make use of a rad tolerant 8-bit controller. Operations which proceed via the CAN bus include: monitor RBX temperatures and voltages, download and verify the TTC Rx, download and verify the CCA's, download and verify the control interface board, and service requests from the LED controls package. Commissioning will take place at Fermilab because the prototype hardware and responsible engineers are there.

6. Photomultiplier high voltage system
   This is a completely new task and everything has to be written from the driver level up to the PVSS II control panel. A top-down design is needed before writing code can begin. Also, documentation, a user's manual, and commissioning are part of the task . Coordination with Fermilab is necessary as the HV engineering will be done there.

1. High voltage system for HPD's
   Sergej Sergueev responsible for completing, commissioning and documenting it with assistance from the Sofia team.

2. Low voltage system for the front-end electronics
   Tami Kramer responsible for carrying the project through. Sergej responsible for the overall design with full participation by Tami, Archana, and Laza to gain the experience. An open issue is writing a device driver for the hardware and software for the micro controller in the hardware.

3. Radioactive source calibration system
   Archana Sharma responsible for carrying the project through. Sergej responsible for the overall design and evaluation of the practicality of modifying the existing CDF package with full participation by Archana, Tami and Laza. Design and implementation of the PVSS II interface in the DAQ VME processor is included in the project.

4. Laser/LED calibration system
   Kurtis Johnson and Dragoslav Lazic responsible for carrying the project through. Sergej acting as a consultant, especially on the overall design.

5. CAN fieldbus system
   Design and development to be done at Dubna under the direction of Sergej. Appropriate hardware (toolkit) will be provided using wbs 2.1.9 Detector Control System. Commissioning to be done at Fermilab when prototype hardware is ready.

6. Photomultiplier high voltage system
   Iowa State University expressed interest in this task, but they have very little experience. Another possibility is the Fermilab SCADA group when Run II commitments have been met.

Summary:

Sergej stays at CERN for an additional 6 months, nominally January - July, 2001, with funding from HCAL Detector Control System. He sees to the completion of the high voltage project, oversees the launch of two new projects (and participates in the implementation at some level) and mentors a third project.