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Polarization dependence of trap detectors

R Goebel, S Yilmaz and R Pello

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The sensitivity of a series of silicon trap detectors has been measured as a function of beam polarization. Measurements and numerical simulation show that very small departures from the ideal orientation of the photodiodes mounted in the trap induces a significant sensitivity to the state of polarization of the beam. Consequences of this polarization dependence for the use of trap detectors as transfer detectors in high-accuracy applications, particularly in cryogenic radiometry, are discussed.


PACS

29.40.Wk Solid-state detectors

07.60.Dq Photometers, radiometers, and colorimeters

85.60.Dw Photodiodes; phototransistors; photoresistors

42.25.Ja Polarization

07.20.Mc Cryogenics; refrigerators, low-temperature equipment

Subjects

Accelerators, beams and electromagnetism

Electronics and devices

Nuclear physics

Instrumentation and measurement

Optics, quantum optics and lasers

Particle physics and field theory

Dates

Issue 3 (1996)



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