Ludlum Measurements
Ludlum
Model 52-1/52-5/52-6
Portable personnel portal
- Detector type
- Plastic scintillators
- Energy range
- 30 keV–3 MeV
- IP rating
- Standard IP40; with sleeve/W version IP54
13 referenced values
Bild: Ludlum
Ludlum Model 334A
Air monitoring with alpha spectra
Ludlum Model 334A — Alpha CAM for workplaces and emergency response.
Download product sheet (PDF)All values with references – for tender documents
Specifications checked against the manufacturer’s documents on 2026-10-16
Overview
Key features
- Ion-implanted silicon
- 450 mm²
- 1024; binned to 256 channels in the alpha spectrum
Specifications
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
Performance
| Typical detection efficiency | 28 % for ²³⁹Pu1 |
|---|
Electronics & signal
| ADC channels | 1024; binned to 256 channels in the alpha spectrum1 |
|---|---|
| Alpha spectrum | 256 channels1 |
Software & data
| Analysis modes | Acute and Chronic; factory-configurable radon mode1 |
|---|
Connectivity & interface
| Data storage | CSV in internal memory or on SD card1 |
|---|
Environment & ratings
| Operating temperature | −17 to 50 °C1 |
|---|
General
| Measurement purpose | Alpha CAM for workplaces and emergency response1 |
|---|---|
| Pump flow without load | 7.0 L/min2 |
The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.
Documents
Sources
The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.
- 1
- 2
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- Weight
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11 referenced values
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- Detector type
- Ion-implanted silicon
- Spectrum channels
- 256 in the alpha spectrum
- Weight
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16 referenced values
Rotem
PM-11 Detector
Sensitive NaI(Tl) gamma probe, Rotem’s primary effluent detector in WebiSmarts
- Detector
- NaI(Tl), 5.1 × 5.1 cm (2 × 2 in); magnetically shielded 5.1 cm photomultiplier
- Energy range
- Gamma above 50 keV; recommended 30 keV – 3.0 MeV
- Count-rate range
- 0–50,000 cps
8 referenced values
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