The fiber calorimeter project is divided into three stages: design, prototype testing, and final construction.
The design effort will determine the physical characteristics of the
prototype detector such as fiber type, lead-to-scintillator volume ratio, and
construction methods. These decisions will then be evaluated by placing the
10-tower prototype in a beam and measuring its characteristics.
The prototype will also be used to evaluate calibration and monitoring
schemes using radioactive sources and light pulsers. After final
specifications are determined, construction of the 936-tower
final detector will proceed.
We hope to conclude the design phase by January 1992, at which
time prototype materials can be ordered. The prototype items and costs are
given in Table 
. The testing of the prototype, though
dependent on an available test beam, should be completed by summer
1992. By that time materials can be ordered for the actual calorimeter.
As outlined in the staging plan given in the final chapter, 1/4 of the fiber calorimeter should be ready for a run in early 1994. Thus only 1/4 of the detector's materials will be ordered initially, and the remainder will be delayed.
Table: R&D and Tooling Costs for the Calorimeter