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CWO PD Detector

Advantage：

1.High density

2.High detection efficiency

3.Lowest afterglow

4.Non Hygroscopic

5.Anti-Irradiation loss

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Description Related Products

Kinheng provides scintillator coupled PD (photodiode) self-contained modules. According to different application scenarios, our company can provide high-energy P0.78, P1.6, P2.5, P5.2mm PD, which are widely used in security inspection (border inspection, package inspection, airport check, etc.), high-energy container inspection, heavy vehicle inspection, NDT, 3D scanning, ore screening and other industrial fields.

5-1. Different materials’ performance parameters：

Scintillator material	CsI(Tl)	CdWO₄	GAGG:Ce	GOS:Pr/Tb Ceramic	GOS:Tb Film
Light yield	54000	12000	50000	27000/45000	145% of DRZ High
Afterglow(after 30ms)	0.6-0.8%	0.1%	0.1-0.2%	0.01%/0.03%	0.008%
Decay Time(ns)	1000	14000	48, 90, 150	3000	3000
Hygroscopic	Slightly	None	None	None	None
Energy range	Low energy	High energy	High energy	High energy	Low energy
Overall costs	Low	High	Middle	High	Low

5-2．PD performance parameters

A. Limit parameters：

Index	Symbol	Value	Unit
Max Reverse Voltage	Vrmax	10	v
Operation temperature	Top	-10 -- +60	°C
Storage temperature	Tst	-20 -- +70	°C

B. PD photoelectric characteristics：

Parameter	Symbol	Term	Typical value	Max	Unit
Spectral response ranges	λp		350-1000	-	nm
Peak response wavelength	λ		800	-	nm
Photosensitivity	S	λ=550	0.44	-	A/W
Photosensitivity	S	λp=800	0.64	-	A/W
Dark current	Id	Vr=10mV	3 - 5	10	pA
Pixel capacitance	Ct	Vr=0,f=10kHz	40 - 50	70	pF

5-3．PD Detector Drawing

(P1.6mm CsI(Tl)/ GOS:Tb Detector)

（P2.5mm GAGG/ CsI(Tl)/CdWO₄ Detector）

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