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參數資料
| 型號： | S7878 |
| 元件分類： | 光敏二極管 |
| 英文描述： | PHOTO DIODE |
| 文件頁數： | 1/2頁 |
| 文件大?。?/td> | 99K |
| 代理商： | S7878 |
Features
l Ceramic scintillator for high sensitivity and reliability
unlike CsI (ceramic scintillator: no deliquescence)
l 5 × 5 element photodiode array
l High sensitivity to X-rays: 1.8 times higher sensitivity
than CWO
l Less afterglow: lower than CsI
<0.1 %/3 ms, <0.01 %/30 ms
l Low crosstalk structure
Applications
l X-ray fluorescence analysis
l X-ray detection
PHOTODIODE
Si photodiode
High sensitivity X-ray detector
S7878
s Absolute maximum ratings (Ta=25
°C)
Parameter
Symbol
Value
Unit
Reverse voltage
VR Max.10
V
Operating temperature
Topr
-10 to +60
°C
Storage temperature
Tstg
-20 to +70
°C
s Photodiode electrical and optical characteristics (Ta=25
°C, per element)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Spectral response range
λ
-
320 to 1000
-
nm
Peak sensitivity wavelength
λp
-
800
-
nm
λ=510 nm
0.33
0.38
-
A/W
Photo sensitivity
S
λ=λp
0.44
0.51
-
A/W
Dark current
ID
VR=10 mV
-
1.5
10
pA
Terminal capacitance
Ct
VR=0 V, f=10 kHz
-
20
-
pF
s X-ray sensitivity (tube current: 1.0 mA, aluminum filter: t=6 mm, distance=830 mm)
X-ray tube voltage
Value
Unit
120 kV
1.2
nA
Note) Sensitivity values are just for your reference. Actual sensitivity values may vary depending on an equipment type and
measurement conditions.
1
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