Mirion Technologies KG 220 SEF - Manual

Featuring:
radiation monitoring
systems
A Mirion Technologies Division
KG 220 SEF
Detectors
KG 220 SEF
Gamma Ionization Chamber
The KG 220 SEF ionization chamber has been deve-
loped for low and medium range gamma dose rate
monitoring in nuclear facilities. There are two versions
with optimized energy response for measuring dose
rates in Sievert or Gray units. Gamma radiation pro-
duces charged particles (elctrons and gas ions) in the
gas fi lling of the ionization chamber. Their discharge
on the electrodes causes charge pulses. These
charge pulses are integrated to a DC current, which
can be measured in the external circuit.
The KG 220 ionization chambers may be connected
to signal processing units of the RAMSYS or TK 250
family.
APPLICATIONS
• Radioprotection of workers
○ Measurement of low and medium dose rates in
nuclear facilities for harsh environment conditions
RELATED PRODUCTS
• KG 50/51 SEC: ionization chambers for high dose
rates
• GIM 202K: medium range gamma area monitor
• TK 250: digital signal processing channels
FEATURES
● Wide measuring range up to 100 Gy/h or Sv/h
●
Saturation proof
● Robust construction
●
Long life time
●
Energy range: 80 keV to 7 MeV
●
Output signal: DC current starting at 0.1 pA
●
Ambient temperature up to 120°C (248°F)