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  G1, G1LE, G2, G2LE, & G3 Sodium Iodide Probes


 The G1LE, G2LE and G3 have been discontinued. The G1 & G2 are available for purchase by UK customers only; if you are in the US and are interested in the G1 or G2, the recommended replacements for these products are the Model 41 (replacement for the G1), and the SPA-3 (for the G2). Please contact your Sales Rep to discuss alternatives for your particular needs.

For a time-table of spare parts and repair service availability, refer to the Replacement Guide & Support Schedule. For any other questions, please contact our Customer Service department at (800) 471-3232.
   Product Detail


Scintillation probes fitted with 1 inch, 2 inch, or 3 inch diameter sodium iodide detectors to provide a range of gamma sensitivity that can be used for energy discrimination with the single channel analysers included in Analyst survey meters.
 G1, G1LE, G2, G2LE, & G3 Sodium Iodide Probes
 Product# Price  Product Description  
       
 G1      -    Sodium iodide probe. Compact, lightweight yet robust, detects small background changes   SELECT  
 G1LE      -    Sodium iodide probe. Low energy version for better detection of 125I and other low energy emitters   SELECT  
 G1.5      -    Sodium iodide probe. 1.5 inch version offers greater sensitivity   SELECT  
 G2      -    Sodium iodide probe. Response: 1,200 kcpm per mR/h due to 137Cs. Detects subsurface gamma emitters during cleanup or decommissioning   SELECT  
 G2LE      -    Sodium iodide probe. 2 inch thin crystal version, optimized for 125l detection   SELECT  
 GW2      -    Sodium iodide probe version fitted with a well crystal   SELECT  
 G3      -    Sodium iodide probe. Response: 4,000 kcpm per mR/h due to 137Cs   SELECT  
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Specifications:
G1 :Compact, lightweight, & robust, useful for detecting small background changes
G1LE :Low energy version for better detection of I125 and other low energy emitters
G1.5 :a 1.5-inch version offering greater sensitivity
G2 :Response: 1,200 kcpm per mR/h due to Cs137. Useful for detecting sub-surface gamma emitters during cleanup or decommissioning
G2LE :A 2-inch thin crystal version, optimized for I125 detection
GW2 :A version fitted with a well crystal
G3 :Response: 4,000 kcpm per mR/h due to Cs137
Areas :1" x 1" (G1); 1" x 1.04" (G1LE); 2" x 2" (G2); 2" x 2.04" (G2LE); 2" x 2" (GW2); 3" x 3" (G3)
Co60 Efficiencies :46% (G1); 74% (G2); 87% (G3)
I125 Efficiencies :99% (G1LE & G2LE)
cps per 100 uR/h Cs137 :500 (G1); 633 (G1LE); 2,000 (G2); 6,700 (G3)
Connector :MHV
Temperature Range :-40 degrees C to +50 degrees C (G3: +4 degrees C to +43 degrees C)
Weights :G1: 0.28 kg (0.6 lb.); G1LE: 0.21 kg (0.47 lb.); G2: 0.81 kg (1.8 lb.); G3: 1.8 kg (4 lb.)