EMX2C9100-23B Datasheet, PDF (5/8 Pages) Hamamatsu Corporation – Multiply faster

Great Stability
Highly stabilized EM gain by cooling temperature control
Maintaining stable cooling temperature is essential to stable gain settings required for superior performance in long
duration imaging and analysis. Very precise control of the cooling temperature in the ImagEM X2 is a key benefit.
Examples of temperature stability and EM gain stability
Temperature stability
EM gain stability
Elapse time (min)
Temperature stability: ±0.01 ˚C
Clock:22 MHz
Cooling temperature: –65 ˚C
Air cool, Ambient temperature: +20 ˚C
Elapse time (min)
EM gain stability: ±1 %
Clock:22 MHz
Cooling temperature: –65 ˚C
Air cool, Ambient temperature: +20 ˚C
Stability of mean bias value (Digitizer Offset)
The baseline is constant over time providing signal stability for long term measurements.
Example of baseline variance
Offset stability
Cooling method: Air cooled
Clock: 22 MHz
EM gain: 4×
Exposure time: 13.93 ms
No light
Elapse time (min)
EM gain protection
It is important to operate the camera in ways that minimize the rate of gain aging and extend the life of the camera. The
ImagEM X2 protects EM gain in two levels: EM gain warning and EM gain protection. EM gain protection mode stops charge
transfer through the EM gain register when excessive output conditions have occurred which may damage the sensor.
EM gain readjustment *
Over time all EM-CCD cameras exhibit gain degradation. The EM gain can be readjusted by raising the voltage in the
multiplying register. The EM gain readjustment can be done by software which comes with the camera. However, the
number of times the EM gain can be readjusted is limited.
*This feature is available when the camera is operated with DCAM-API. (DCAM-API is a software driver which supports HAMAMATSU digital cameras.)