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Fine Grained Silicon-Tungsten Calorimetry for a Linear Collider Detector

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8 Author(s)
Strom, D. ; Univ. of Oregon, Eugene, OR, USA ; Frey, R. ; Breidenbach, M. ; Freytag, D.
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A fine grained silicon-tungsten calorimeter is ideal for use as the electromagnetic calorimeter in a linear collider detector optimized for particle-flow reconstruction. We are designing a calorimeter that is based on readout chips which are bump bonded to the silicon wafers that serve as the active medium in the calorimeter. By using integrated electronics we plan to demonstrate that fine granularity can be achieved at a reasonable price. Our design minimizes the gap between tungsten layers leading to a small MoliÈre radius, an important figure of merit for particle-flow detectors. Tests of the silicon detectors to be used in a test beam prototype as well as timing measurements based onsimilar silicon detectors are discussed.

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Nuclear Science, IEEE Transactions on  (Volume:52 ,  Issue: 4 )