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4. Baseline Design of JLC Detector

Individual parameters as shown right.

Key Points of the base-line design;

3-Tesla magnetic field to suppress BG to VTX
CCD-vertex detector for the finest pixel size

and thinnest material
Gaseous tracker ; robust for kinked track.
Jet chamber for timing resolution to bunch-ID,

robust against field non-uniformity

caused by compensation solenoids for final-Q
Whole calorimeter inside of 3T-solenoid

for the best hermeticity and the best clustering.
Hardware-compensation AND fine granularity

require sampling calorimeter with

plastic scintillator and heavy metal.

Other options be discussed in

§6. Other Technologies.

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yoshiaki.fujii@kek.jp, July 10,2002 at 5th ACFA LCWS at Tokyo