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Détecteurs Geiger Mueller (GM)

Description

CANBERRA Geiger Mueller Detectors have been carefully researched and developed to provide a rugged, reliable, long-lasting means of monitoring nuclear radiation levels. These detectors offer guaranteed advantages, including manufacturing consistency, product reliability and competitive pricing. Many of our tube types, including those approved for the military Quality Product List (QPL), are manufactured and tested to withstand rigorous shock and vibration per military standards.

 

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GM Pancake Detectors (Halogen Quenched)

GM Pancake Detectors (Halogen Quenched)

Description

Pancake detectors are widely used in nuclear probes and instruments for detecting and measuring alpha, beta or gamma surface contamination of clothes, small objects, benches, floors, roads, etc. Such halogen-quenched Geiger Mueller detectors are cost-effective, have an unmatched quality/cost ratio, are easy to use and are very reliable. Their ultra-thin mica window allows for an efficient detection of alpha, low energy beta and gamma radiation.

Adherence to stringent design parameters, manufacturing procedures and quality assurance provisions of CANBERRA products has successfully fulfilled commercial and military exacting standards. Our military approved detectors used by military customers worldwide, are able to withstand rigorous shock and vibration testing.

Our 2000-series of GM detectors provides a direct-replacement to most widely used competitive detectors. These can be incorporated into various radiation monitors and dosimeters. Our GM pancake detectors range in diameter from 33.5 mm (1.32 in.) to 53.6 mm (2.11 in.) and are also offered in Low Hysteresis and High Altitude models. These are used in CANBERRA's own line of products as well as products from various companies. Please contact us should you wish to discuss specific requirements or references.

Features

  • 1.8 to 2.2 mg/cm2 Ultra Thin Mica Window
  • 28 or 45 mm effective diameter
  • High alpha, beta and gamma efficiency
  • Cost effective, easy to use and very reliable with unmatched quality/cost ratio
GM Pancake Detectors
 
Characteristics Detector Type (for α, β, γ applications)
T2000/8767**
T2000/900 LH
T2000/900 HA
T2000/500
T2000/500 LH
T2000/500 HA
T2006/900
T2006/900 LH
T2006/500
T2006/500 LH
T2011/900 T2011/500
Applications SBM-2D, SBS BP-100 - BP-77 MCB2, SABG-15 -
Sensitivity*
137Cs cpm at 1 mR/h*
3500 3500 3500 3500 1500 1500
Window Area Density (mg/cm2) 1.8- 2.0 1.8- 2.0 1.8- 2.2 1.8- 2.2 1.8-2.0 1.8-2.0
Window Effective Diameter (mm, in.) 44.5, 1.75 44.5, 1.75 44.5, 1.75 44.5, 1.75 28.4, 1.12 28.4, 1.12
Recommended Operating Voltage (HV+) 900 500 900 500 900 500
Plateau Length Volts min. 850-1000 450-600 850-1000 450-600 850-1000 450-600
Plateau Slope (%100 V max.) 10 10 10 10 5 5
Dead Time (µs max.) 50 50 50 50 40 40
Background (cpm)
Shielding 2" Pb + 1/8" Al
30 max. 30 max. 30 max. 30 max. 18 max. 18 max.
Resistor Ra (MΩ) 3.3 3.3 3.3 3.3 3.3 3.3
Resistor R1 (MΩ) 1.0 1.0 1.0 1.0 1.0 1.0
Operating Temp. (°C) –20 to +55 –20 to +55 –20 to +55 –20 to +55 –20 to +55 –20 to +55
Cathode Material Cr/Fe Cr/Fe Cr/Fe Cr/Fe Cr/Fe Cr/Fe
Max. Overall Length including Pins (mm, in.) Pancake Detectors

LH = Low Hysteresis Model
HA = High Altitude Model

Pancake Detectors
Pancake Detectors

OPTIONS:
FL = Flying Leads
C = Push-on Anode Clip

Max. Overall Diameter (mm, in.)
Window Recess (mm, in.) 1.6, 0.062 1.6, 0.062 1.6, 0.062 1.6, 0.062 1.3, 0.05 1.3, 0.05
* At recommended operating voltage
** The only Mil. Spec. Pancake is the "jan 8767"
GM End Window Detectors

GM End Window Detectors

Description

Our GM End Window detectors provides direct-replacement to most widely used competitive detectors. These can be incorporated into various radiation monitors and dosimeters. Our GM End Window detectors are offered in two diameters: either 19.8 mm (0.78 in.) or 28.4 mm (1.12 in.). These are used in CANBERRA's own line of products as well as products from various companies. Please contact us should you wish to discuss specific requirements or references.

Features

  • 1.8 to 2.2 mg/cm2 Ultra Thin Mica Window
  • 19.8 or 28.4 mm effective diameter
  • High alpha, beta and gamma efficiency
  • Cost effective, easy to use and very reliable with unmatched quality/cost ratio
GM End Window Detectors
 
Mica End Window (for α, β, γ Applications)
Mil. Version 2121 M Window 2.8–3.4 mg/cm2 Probe contains 2131 tube. Available with BNC.
Characteristics T2121 TP2121S TP2131 TP2131/4P
Application α, β, γ α, β, γ α, β, γ α, β, γ
Sensitivity*
137Cs cpm at 1 mR/h*

1700

1700

2400

2400

Window Area Density (mg/cm2) 1.8 – 2.2 1.8 – 2.2 1.8 – 2.0 1.8 – 2.0
Window Effective Diameter (mm, in.) 19.8, 0.78 19.8, 0.78 28.4, 1.12 28.4, 1.12
Recommended Operating Voltage (HV+) 500 500 900 900
Plateau Length Volts min. 450 – 700 850 – 1000 850 – 1000 850 – 1000
Plateau Slope (%100 V max.) 5 5 10 10
Dead Time (µs max.) 100 100 150 150
Background (cpm)
Shielding 2" Pb + 1/8" Al
30 max. 30 max. 40 max. 40 max.
Resistor Ra (MΩ) 3.3 1.0 1.0 1.0
Resistor R1 (MΩ) 1.0 1.0 1.0 1.0
Operating Temp. (°C) –40 to +75 –40 to +75 –40 to +75 –40 to +75
Cathode Material Cr/Fe Cr/Fe Cr/Fe Cr/Fe
Max. Overall Length including Pins (mm, in.) 51.0, 2.0 94, 3.7 124, 4.85 115, 54
Max. Overall Diameter (mm, in.) 25.4, 1.0 82, 3.22 35 – 1.38 35, 1.38
Window Recess (mm, in.) 1.6, 0.062 1.6, 0.062 1.6, 0.062 1.3, 0.05
* At recommended operating voltage.
Detector Type Applications
T2121M Military
TP2131 Radiation monitors with BNC connection
T2131-4P Radiation monitors with 4 pin JEDEC connection
Related Industry Models
CANBERRA Centronics LND Saint Gobain
Mica End
Window Detectors
T2121 ZP1410 7224 N/A
T2131 N/A 723 N210-1
TP2131 N/A 7232 N210/BNC
Related Industry Models
CANBERRA LND Saint Gobain
Pancake T200/8767 7311 N1002/8767
T2006/900 73118 N1006
T2011/500 7231 N1004
GM Gamma & Gamma/Beta Sensitive Detectors

GM Gamma & Gamma/Beta Sensitive Detectors

Description

Our gamma and gamma/beta detectors are designed to handle harsh environments, and have a very long operating lifetime in excess of 5 x 1010 counts. These are offered in a wide range of lengths (51 mm to 351 mm) and diameters of (15.2 mm to 19.3 mm) and can be used as direct replacements for competitive detectors. These are widely used in radiological surveys and monitoring equipment as well as industrial and laboratory applications. Please contact us should you wish to discuss specific requirements or references.

Our beta sensitive detectors have a wall thickness of 40-60 mg/cm2, (average 0.002"). They are used in many reactor safety monitoring systems and have proved to be very reliable even when used in semi-corrosive conditions at elevated temperatures.

Features

  • This group of detectors covers a wide range of sensitivity to closely match our customer applications
  • Well designed and proven construction ensures a long and reliable operating life
  • Ideal for industrial control, area and site monitors, and reactor cooling system monitoring
  • Cost effective, easy to use and very reliable with unmatched quality/cost ratio
GM Gamma & Gamma/Beta Sensitive Detectors
 
Thin Wall Detectors (for β, γ Applications)
Flying lead connections available for these models.
Indicated by "-FL" suffix on order
Characteristics T2200 T2202 T2211
Application β, γ β, γ β, γ
Sensitivity*
137Cs cpm at 1 mR/h*
5275 2900 1550
Window Area Density (mg/cm2) N/A N/A N/A
Window Effective Diameter (mm, in.) N/A N/A N/A
Recommended Operating Voltage (HV+) 900 900 900
Plateau Length Volts min. 850-1000 850-1000 850-1000
Plateau Slope (%100 V max.) 8 8 8
Dead Time (µs max.) 100 75 150
Background (cpm)***
Shielding 2" Pb + 1/8" Al
60 max. 30 max. 20 max.
Test Circuit Figure 1 Figure 1 Figure 1
Resistor Ra (MΩ) 1.0 1.0 1.0
Resistor R1 (MΩ) 1.0 1.0 1.0
Operating Temp. (°C) -40 to +75** -40 to +75** -40 to +75
Cathode Material Cr/Fe Cr/Fe Cr/Fe
Cathode Wall 40-60 mg/cm2 40-60 mg/cm2 40-60 mg/cm2
Max. Length including Pins (mm, in.) 276, 10.9 148, 5.83 110, 4.31
Max. Overall Diameter (mm, in.) 16.0, 0.63 16.0, 0.63 19.3, 0.75
Window Recess (mm, in.) N/A N/A N/A
* An exposure of 115.07 mR in air equates to 1.0 mGy.
** High temperature version available for 150 °C operation.
*** At recommended operating voltage.
 
Thick Wall Detectors (for γ Applications)
Flying lead connections available for these models.
Indicated by "-FL" suffix on order
Characteristics T2306 T2311 T2314 T2316 T2350
Application γ γ γ γ γ
Sensitivity*
137Cs cpm at 1 mR/h*
950 1850 3050 3950 8150
Window Area Density (mg/cm2) N/A N/A N/A N/A N/A
Window Effective Diameter (mm, in.) N/A N/A N/A N/A N/A
Recommended Operating Voltage (HV+) 900 900 900 900 900
Plateau Length Volts min. 850-950 850-950 850-1000 850-1000 850-1000
Plateau Slope (%100 V max.) 8 8 6 6 10
Dead Time (µs max.) 100 100 100 100 120
Background (cpm)***
Shielding 2" Pb + 1/8" Al
12 max. 30 max. 47 max. 60 max. 100 max.
Test Circuit Figure 1 Figure 1 Figure 1 Figure 1 Figure 1
Resistor Ra (MΩ) 3.3 3.3 3.3 3.3 3.3
Resistor R1 (MΩ) 1.0 1.0 1.0 1.0 1.0
Operating Temp. (°C) -40 to +75 -40 to +75 -40 to +75 -40 to +75 -40 to +75
Cathode Material Cr/Fe Cr/Fe Cr/Fe Cr/Fe Cr/Fe
Cathode Wall 0.25, 0.010 0.25, 0.010 0.25, 0.010 0.25, 0.010 0.25, 0.010
Max. Length including Pins (mm, in.) 86, 3.4 119, 4.7 165, 6.5 197, 7.75 351, 13.82
Max. Overall Diameter (mm, in.) 16.0, 0.63 16.0, 0.63 16.0, 0.63 16.0, 0.63 19.3, 0.76
Window Recess (mm, in.) N/A N/A N/A N/A N/A
* An exposure of 115.07 mR in air equates to 1.0 mGy.
** High temperature version available for 150 °C operation.
*** At recommended operating voltage.
Detector Type Applications
T2200 Beta Monitor Industrial Safety System
T2202 Beta Monitor Industrial Safety System
T2211 Beta Monitor Industrial Safety System
T2306 Gamma Monitor, Portable Monitoring System
T2311 Gamma Monitor, Portable Monitoring System
T2314 Gamma Monitor, Portable Monitoring System, Industrial Control
T2316 Gamma Monitor, Portable Monitoring System, Industrial Control
T2350 Area and site Monitoring
Related Industry Models
CANBERRA Centronics LND Saint Gobain
Thin Wall Detectors T2200 ZP1860 719 N107/3P
T2202 ZP1850 721 N106/3P
T2211 N/A 725 N112
Thick Wall Detectors T2316 N/A 743 N310/3P
T2350 N/A 78017 N/A
GM Miniature Detectors

GM Miniature Detectors

Description

The range of our Miniature GM Detectors offers a wide choice of sensitivity levels available to meet our customer requirements. From low level background environments to levels up to 1000 R/hr. gives our customer the opportunity to select the ideal detector for their application.

Robust construction and the ability to withstand excessive shock and vibration as required for military applications, makes these detectors an ideal choice for small hand held pocket dosimeters and small portable health physics monitors. Please contact us should you wish to discuss specific requirements or references.

Features

  • Rugged construction designed to tolerate harsh operating conditions
  • Halogen quenched to maximize operating life
  • A wide range of sensitivities to suit customer needs
  • Ideal for small monitoring equipment and personal health physics applications
  • Low cost and very reliable over long periods of time
GM Miniature Detectors
 
Gamma Sensitive Miniature Detectors
Anode pin connector and cathode strap are supplied. Stated wall thickness includes glass envelope and cathode wall where appropriate. To achieve maximum linear count rate, always solder Ra directly to the supplied anode pin connector, or to the anode flying lead.
Characteristics T2411M T2416A T2417A T2420M T2422
Sensitivity***
137Cs cpm at 1 mR/h*
84 420 450 4.2 0.66
Window Area Density (mg/cm2) N/A N/A N/A N/A N/A
Window Effective Diameter (mm, in.) N/A N/A N/A N/A N/A
Recommended Operating Voltage (HV+) 575 575 575 500 460
Plateau Length Volts min. 500–650 500–650 500-650 450–550 450–550
Plateau Slope (%100 V max.) 15 8 8 35 40 max.
Dead Time (µs max.) 15 45 45 20 10
Background (cpm)
Shielding 2" Pb + 1/8" Al
2 max. 12 max. 5 max. 6 typ. 0.6 typ.
Test Circuit Figure 2 Figure 2 Figure 2 Figure 2 Figure 2
Resistor Ra (MΩ) 2.2 4.7 4.7 4.7 4.7
Operating Temp. (°C) –40 to +75 –40 to +75 –40 to +75 –51 to +71 –20 to +60
Cathode Material Cr/Fe Cr/Fe Cr/Fe Cr/Fe Cr/Fe
Cathode Wall 80–100
mg/cm2
64–80
mg/cm2
64–80
mg/cm2
360–400
mg/cm2
360–400
mg/cm2
Max. Overall Length including Pins (mm, in.) 37, 1.46 51, 2.0 46, 1.82 20, 0.8 20, 0.8
Max. Overall Diameter (mm, in.) 6.2, 0.244 10, 0.4 9.20, 0.36 7, 0.28 7, 0.28
Window Recess (mm, in.) N/A N/A N/A N/A N/A
* An exposure of 115.07 mR in air equates to 1.0 mGy.
*** At recommended operating voltage.
The T2422 detector is equivalent to the 3G10.
 
Gamma Sensitive Miniature Detectors
L – Max. Length without Leads
D – Max. Overall Diameter
Characteristics 3G70/
EM14752
3G70
4G60M/
EM14754
4G60M
4G2500/
EM14749
4G2500
3G6500/
EM14748
3G6500
Sensitivity***
137Cs cpm at 1 mR/h*
4.2 4.2 150 270
Window Area Density (mg/cm2) N/A N/A N/A N/A
Window Effective Diameter (mm, in.) N/A N/A N/A N/A
Recommended Operating Voltage (HV+) 460 500 550 460
Plateau Length Volts min. 420–500 450–550 500–600 420–500
Plateau Slope (%100 V max.) 30 30 25 25
Dead Time (µs max.) 25 25 35 50
Background (cpm)
Shielding 2" Pb + 1/8" Al
0.6 max. 0.6 max. 6 max. 10 max.
Test Circuit Figure 2 Figure 2 Figure 2 Figure 2
Resistor Ra (MΩ) 4.7 4.7 4.7 4.7
Operating Temp. (°C) –20 to +60 –20 to +60 –20 to +60 –20 to +60
Cathode Material Cr/Fe Cr/Fe Cr/Fe Cr/Fe
Cathode Wall 360
mg/cm2
360
mg/cm2
260
mg/cm2
280
mg/cm2
Max. Overall Length including Pins (mm, in.) 34, 2.91 20, 2.36 34, 2.91 54, 3.7
Max. Overall Diameter (mm, in.) 7, 0.28 7, 0.28 7, 0.28 7, 0.28
Window Recess (mm, in.) N/A N/A N/A N/A
* An exposure of 115.07 mR in air equates to 1.0 mGy.
*** At recommended operating voltage.
The T2422 detector is equivalent to the 3G10.
Detector Type Applications
T2411 Dosimeters
T2411M Military
T2416A Dosimeters, Small Portable Monitors
T2417A Dosimeters, Small Portable Monitors, Military
T2420M Military
T2422 Dosimeters, Small Portable Monitors
Related Industry Models
CANBERRA Centronics LND Saint Gobain
Miniature Detectors T2411 ZP1310 714 N116-1/C1310