Super-drawers

A drawer houses up to 24 PMT blocks and supports electronics boards which are connected to each PMT block and provide the high voltage to the divider , the low voltage to the HV cards and the 3-in-1 card, and the control and calibration signals to the 3-in-1 card. They also contain electronics to process the signals coming from the shaper and the integrator. A super-drawer is a train of two drawers.There will be 1 super-drawer for an extended barrel module and two super-drawers for a central barrel module.

Figures and drawings:

• organization of the super-drawer electronics
• cross-section of a drawer inside a girder
• another view of a drawer inside a girder
• connection between the drawers
• conceptual drawing of the patch panel
• cooling system
• links of the cooling tubes with the patch panel and the general supply

Some photos:

• of the drawer preparation for Module 0
• of the drawer system

The 1997 test beam:

• Both super-drawers (ie 4 drawers) will be equiped with the cooling system (LCS)