Ludlum Probes
| Alpha/Beta/Gamma Detectors | Model 44-7 | End Window G-M Detector |
| Model 44-9 | Pancake G-M Detector | |
| Model 44-9-18 | Pancake G-M Detector | |
| Model 44-25 | Pancake G-M Hand Frisker | |
| Model 44-26 | Pancake G-M Hand Frisker | |
| Model 44-40 | Shielded Pancake G-M Detector | |
| Model 44-40-2 | Aluminum housed lead shielded Pancake G-M Detector | |
| Model 44-88 | Cylindrical Pancake G-M Detector | |
| Model 44-89 | Square Cluster Pancake G-M Detector | |
| Model 44-94 | Diamond Cluster Pancake G-M Detector | |
| Gamma Detectors | Model 44-2 | 1 " X 1" NaI Scintillator |
| Model 44-3 | 1" X 1" mm Low Energy Gamma Scintillator | |
| Model 44-10 | 2" X 2" NaI Scintillator | |
| Model 44-11 | 2" X 2" Integral NaI Scintillator | |
| Model 44-17 | 2" X 2mm NaI Scintillator | |
| Model 44-20 | 3" X 3" Integral NaI Scintillator | |
| Model 44-62 | 1/2" X 1" NaI Scintillator | |
| Model 133 Series | G-M Detectors | |
| Neutron Detectors | Model 42-5 | Neutron Ball Cart and Detector |
| Model 42-30 | Proportional Neutron Detector | |
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Alpha Detectors |
Model 43-1 | Alpha Scintillator
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| Model 43-2 | Alpha Scintillator
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| Model 43-5 | 50 cm² Alpha Scintillator | |
| Model 43-44 | 50 cm² Alpha Air Proportional Detector | |
| Model 43-44-1 | 100 cm² Alpha Air Proportional Detector | |
| Model 43-65 | 50 cm² Alpha
Scintillator
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| Model 43-90 | 100 cm² Alpha
Scintillator
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| Model 43-92 | 100 cm² Alpha
Scintillator
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Beta Detectors |
Model 44-1 | Beta Scintillator
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| Model 44-110 | Tritium Detector | |
| Model 44-116 | 100 cm² Beta Scintillator
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| Model 44-142 | 100 cm² Beta Scintillator | |
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Alpha/Beta Detectors |
Model 43-1-1 | Alpha/Beta
Scintillator
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| Model 43-2-2 | Alpha/Beta
Scintillator
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| Model 43-68 | 100 cm² Gas Proportional Detector | |
| Model 43-89 | 100 cm² Alpha/Beta
Scintillator
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| Model 43-93 | 100 cm² Alpha/Beta
Scintillator
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Beta/Gamma Detectors |
Model 44-6 | Thin Wall G-M
Detector
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| Model 44-21 | Beta Gamma
Scintillator
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| Model 44-38 | Energy Compensated
G-M Detector
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| Model 44-92 | 140 cm² Xenon Gas Proportional Detector | |
| Model 44-98 | BGO Scintillator
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