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Calorimetry
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Optical Transition Radiation Detection
Test of an Optical Transition Radiation Detector at the
CERN-SPS1
Carlos W. Salgado and Youri G. Sharabian Norfolk State University,
Norfolk, VA 23504, USA and The Thomas Jefferson National Accelerator
Facility, Newport News, VA 23606, USA
Abstract
We are considering the use of
Optical Transition Radiation (OTR) Detectors to measure the energy spectrum of
high-energy primary cosmic rays (about and above 1000 TeV) in outer space. A very
preliminary prototype of such ``calorimeter’’ was tested at the CERN-SPS H2 test
beam-line using electrons of energies between 7 to 150 GeV. We measured light
output using stacks of aluminum foils with different surface quality and distance
separations.
1 Work supported by NASA-FAR grant # NAG5-8653
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