Lecture9 - ENU 4612C/5615C Nuclear Radiation Detection and...

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Unformatted text preview: ENU 4612C/5615C Nuclear Radiation Detection and Instrumentation Lecture 9 General Properties of Radiation Detectors (2) General Properties of Radiation Detectors 5. Detection Efficiency Absolute: Intrinsic: source by emitted quanta of # recorded pulses of # = abs detector on incident quanta of # recorded pulses of # int = source detector int 4 = abs General Properties of Radiation Detectors 5. Detection Efficiency Solid Angle source d detector dA = = A 2 cos s) (steradian angle Solid dA d n General Properties of Radiation Detectors 5. Detection Efficiency Solid Angle Point Source S d A a + = 2 2 1 2 a d d 2 2 2 d a d A a d = >> General Properties of Radiation Detectors 5. Detection Efficiency Absolute and Intrinsic Efficiency Recalling the definitions of absolute and intrinsic efficiencies Intrinsic efficiency depends on: Type and energy of radiation Composition of detector Size and shape of detector int 4 = abs General Properties of Radiation Detectors 5. Detection Efficiency Peak and Total Efficiencies dH dN Full-energy peak H General Properties of Radiation Detectors...
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Lecture9 - ENU 4612C/5615C Nuclear Radiation Detection and...

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