Time Projection Chamber (TPC)
A time projection chamber is a detector technology employed in high
energy particle physics that can determine the (x,y,z) position of an
event within it with incredible accuracy. The chamber, usually built as
a cylinder, is filled with some ionizing medium. In the case of LUX,
that material is liquid xenon. When a particle travels through the
chamber, it produces ionization electrons. A strong electric field is
constantly applied along the z-direction of the chamber, and the
ionization electrons drift because of this electric field to the
collector. The collector can determine the (x,y) position of the event,
and the drift time of the electrons from the event site to the
collector provides the z position.
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