Image absorption of each detectors at 150keV Gamma ray
(not considered of emitting absorption in scintillatior)
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Semiconductor detector has strong points like as |
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better effeciency of conversion from radiation to electric signal than the other materials |
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better sensitivity and energy resolution due to no conversion loss atlight emitting than scintillators |
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Also CdTe detector itself also has good characteristics like as |
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high absorption due to its high atomic number and high density high energy resolution with low leak current due to wide band gap energy even at room temperature |
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All kind of characteristic listed above enable to realize |
| * |
low irradiation dose |
| * |
miniaturization of equipment due to no necessary for cooling system or photo multiplier tube |
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Direct conversion
Comparison of semiconductor detectors
 * Proviso that it depends on the contents of Zn
characteristic comparison of scintillators
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