Features

l Si photodiode coupled to low cost CsI scintillator

l Ideal for detection of X-ray energy below 100 keV

Applications

l X-ray detection

l X-ray monitors

PHOTODIODE

Si photodiode

Detector for X-ray monitor

S8559

s Absolute maximum ratings (Ta=25

°C)

Parameter

Symbol

Value

Unit

Reverse voltage

5

V

Operating temperature

Topr

-10 to +60

°C

Storage temperature

Tstg

-20 to +70

°C

s Electrical and optical characteristics (without scintillator, Ta=25

°C)

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

Spectral response range

λ

-

190 to 1000

-

nm

Peak sensitivity wavelength

λp

720

-

nm

Photo sensitivity

S

λ=500 nm

-

0.26

-

A/W

Dark current

-

2

50

pA

Terminal capacitance

Ct

-

950

-

pF

s X-ray sensitivity (reference value, tube current: 1.0 mA, aluminum filter: t=6 mm, distance=830 mm)

X-ray tube voltage

Typ.

Unit

120 kV

52

nA

Note) Depends on equipment and measurement conditions.

Avoid storing or using S8559 at high humidity because CsI scintillator has deliquescence.

Handling precautions

1