KAERI
Radiation Gas ions - electrons + Gas-filled Detector Power Supply V Voltmeter
Log(Pulse Height) Ionisation Chamber Proportional Counter Geiger-Müller Counter High initial Ionisation Low initial Ionisation Voltage
Collecting electrode x0 Capacitance C d R V(t) = signal out Grounded electrode V0
electron anode
Metalcylinder Thin window Radiation Gas wire electrode R To amplifier
섬광체 광전자변환체 GEM 수집전극 Signal
Scintillator MCA System PM PREAMPLIFIER AMPLIFIER Delay Amplifier Source HV Power Supply Timing SCA Linear Gate Counter
radiation Conduction band electrons Valence band
PULSER MCA System HPGe DETECTOR PREAMPLIFIER AMPLIFIER GATED BIASED AMPLIFIER source DETECTOR BIAS SUPPLY OSCILLOSOPE
source 60 kev 50 kev Scintillator PMT Electronics Material
PMT Scintillator Material Source shielding T L T RADIOACTIVE SOUCE I O I NUCLEAR DETECTOR COLLIMATORS BUBBLES PIPE WALL
Insulator Emitter Collector
SSD2 SSD3 SSD4 SSD1 30 93.5 Al(0.2mm) Cu(0.3mm) Cu(1.4mm)
13 C Target 10mA p Detector Air Soil γ Pb Shield γ