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Optical Communication Components

Radiation Detector (Preliminary)

KRD100A

 

Description

The radiation detector, KRD100A series is a newly developed solid sate device. KRD100A has an efficient conversion efficiency for X-ray, α, β, and γ- rays over a wide radiation intensity. The robust design enables to use under harsh environments. KRD100A can be used with the bias of a few volts and does not require a high voltage supply. A standard type, KRD1608GE1 (in the lower-left figure) is assembled on PCB with SMA connecter. Various packages and/or window types are also available as options.


Applications

Real-time and on-site dosemeters for

  • patient exposure in interventional radiology
  • patient exposure in X-ray radiography
  • beam loss monitoring
  • nuclear core and waste
Circuits
 

Absolute Maximum Ratings

Parameter Symbol Value Unit
Bias voltage Vbias 500 V
Radiation intensity DG 10 kGy/min
Forward current IF 10 mA
Operating temperature Topr -40 to +80*¹ ºC
Storage temperature Tstg -40 to +85*¹ ºC

(Note)
*1:higher operating and storage temperature available as option.

Electrical and Optical Characteristics (Ta=25 oC unless otherwise noted)

Parameter Symbol Min. Typ. Max. Unit Test Conditions
Active area S 16 x 8 mm²  
Responsivity R - 2.8 - µA/(kGy/min) 50keV X-ray
- 1.6 - 60;Co γ-ray
- 21.2 - 90Sr-90Y β-ray
Dark current ID - 2 - pA Vbias=100V
Total capacitance Ct   1.5 - pF Vbias=100V,,f=1MHz

Specifications are subject to change without notice.



Radiation Intensity vs. Output Signal Bias Voltage vs. Output Signal
Radiation Energy Responsivity Time Fluctuation of Output for γ-Ray
Time Response at High Temperature 2D Exposure Dose Mapping in X-Ray Radiography

Specifications are subject to change without notice.


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