Mirion Technologies KG 80 PED-PEF User Manual
Featuring:
radiation monitoring
systems
A Mirion Technologies Division
KG 80 PED/PEF
Detectors
KG 80 PED/PEF
Gamma Ionization Chamber
The ionization chambers series KG 80 PED/PEF have
been developed for gamma dose rate monitoring
under extreme conditions. There is a check volume
integrated in the detector housing which enables
remote testing without access to the location of the
detector.
Gamma radiation produces charged particles in the
gas lling of the ionization chamber.
The transportation of these charged particles in the
electrical eld and their discharge on the electrodes
causes charge pulses.
The charge pulses are integrated to a DC current,
which can be measured in the external circuit.
APPLICATIONS
• Radioprotection of workers
○ Measurement of medium and high dose rates
for harsh environment and locations with dif cult
access
• Operational process monitoring
RELATED PRODUCTS
• KG 220/221: ionization chambers for low and
medium dose rates
• KG 50/51 SEC: ionization chambers for post
accident conditions
• TK 250: digital signal processing channel
FEATURES
● Ionization chamber with check volume for
functional check at non accessible locations
● Wide dynamic range up to 100 kGy/h
● Energy range: 80 keV to 3 MeV
● Output signal: DC current starting at 1 pA
● Operates up to 180°C (356°F) and 7 bar
● Robust and reliable
Since norms, speci cations and designs are subject to occasional change, please ask for con rmation of the information given in this publication.
Mirion Technologies (MGPI) SA
Route d’Eyguières
FR-13113 Lamanon
France
T +33 (0) 4 90 59 59 59
F +33 (0) 4 90 59 55 18
Mirion Technologies (MGPI) Inc
5000 Highlands Parkway
Suite 150
Smyrna, GA 30082
USA
T +1 770 432 2744
F +1 770 432 9179
Mirion Technologies (MGPI H&B) GmbH
Landsberger Strasse 328a
DE-80687 Munich
Germany
T +49 (0) 89515 13-0
F +49 (0) 89515 13 169
Mirion Commercial (Beijing) Co., Ltd.
Shanghai Jiangchang Commercial Branch
Room 801, 78 Jiangchang SanLu
Zhabei District, Shanghai 200436
PR of China
T +86 21 6180 6920
F +86 21 6180 6924
KG 80 PED/PEF
Detectors
TECHNICAL DATA
www.mirion.com
144972EN-B
348 235 EN-C
GAMMA IONIZATION CHAMBER WITH CHECK
VOLUME
The KG 80 ionization chambers have a second electrode
system within the pressurized housing.
The second system is irradiated by a built-in beta source,
which generates a continuous detector current for test
purposes.
This test current can be added to the current of the
measuring system by an external switch unit, which is
part of the NV 102 P c/f-converter.
Properties KG 80 PED KG 80 PEF Acceptable Tolerance
Measuring range 1e–5 Gy/h … 1e+3 Gy/h
1e+3 Gy/h … 1e+5 Gy/h
± 20%; 800V acceptable
deviation of sensitivity
± 40%; 1200V acceptable
deviation of sensitivity
Sensitivity
Energy range
1.0e–8 A/(Gy/h)
80 keV … 3 MeV
± 15%
± 20% acceptable deviation
of sensitivity
Detector housing
Gas lling
Check source in the sensitive volume
Check source in the check volume
Stainless steel 1.4571
Argon, 6 bar
Sr-90, 3.7 MBq
Sr-90, 37 MBq
Operating voltage
Basic current in the sensitive volume
Basic current in the check volume
800 … 1200V
Approx. 2 ... 5e-13 A
Approx. 1.2e-9 A
Temperature range
Short term temperature range, for max 1 h
Environmental pressure
Dimensions (Ø × L, without cable)
Weight (without cable)
-25 … 180°C (-13 ... 356°F)
190°C (374°F)
0.7 … 7 bar
120 mm × 500 mm
(4.7 in x 19.6 in)
6.3 kg (13.8 lb)
-25 … 100°C (-13 ... 212°F)
120°C (248°F)
0.7 … 7 bar
120 mm × 500 mm
(4.7 in x 19.6 in)
6.5 kg (14.3 lb)
Cable
Connectors (KG 80 PEF only)
Coaxial cable (e.g. Raychem
5031B; the maximum length
(capacity) of cable is determined
by signal processing)
Coaxial cable (e.g. Raychem
5031B; the maximum length
(capacity) of cable is determined
by signal processing)
Fischer size 105
Interfacing of the KG 80 with
TK 250 signal processing
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