SaphyRAD probes

Alpha and beta probes for the SaphyRAD contamination meter

Smart external probes for the SaphyRAD contamination monitor to inspect small or large areas for alpha, beta or alpha and beta contamination. All probes have a proximity sensor and radiation alarm, and a floor stand turns them into a mobile clearance checkpoint.

Active area
32 cm² (A 32), 31 cm² (AB 31), 100 cm² (AB 100, A-B 100), 170 cm² (AB 170, A-B 170, A-BG 170)1
Measurement range
α: 0.01–100 Bq/cm²; β and α+β: 0.1–1,000 Bq/cm²; AB 31: 0.1–2,150 Bq/cm²1
Energy range
α: 3–8 MeV; β: 100 keV–2.2 MeV1

Specifications checked against the manufacturer’s documents on 2026-10-17

Manufacturer’s product page (opens in a new tab)

Overview

Key features

  • Embedded alarm and distance indicator
  • Ruggedised design for the nuclear industry
  • Floor stand for a mobile checkpoint

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.

Detector

Detector typeA 32: ZnS (α); AB 31: double GM pancake (α+β); AB 100 and AB 170: thin plastic scintillator (α+β); A-B 100 and A-B 170: ZnS + thin plastic scintillator (separate α and β channels); A-BG 170: ZnS + thick plastic scintillator (α, and β and γ)1
Active area32 cm² (A 32), 31 cm² (AB 31), 100 cm² (AB 100, A-B 100), 170 cm² (AB 170, A-B 170, A-BG 170)1
Proximity sensor and alarmProximity sensor and radiation alarm on all probes1

Measuring range

Sensitivity (c/s/Bq)A 32: 0.16 (²³⁹Pu); AB 31: 0.21 (³⁶Cl); AB 100: 0.29 (³⁶Cl); A-B 100: α 0.14 (²⁴¹Am), β 0.23 (³⁶Cl); AB 170: 0.29 (³⁶Cl); A-B 170: α 0.15, β 0.25; A-BG 170: α 0.16, β 0.281
Measurement rangeα: 0.01–100 Bq/cm²; β and α+β: 0.1–1,000 Bq/cm²; AB 31: 0.1–2,150 Bq/cm²1
Energy rangeα: 3–8 MeV; β: 100 keV–2.2 MeV1

Mechanical

DimensionsA 32: 264 × 119 × 123 mm; AB 31: 124 × 74 × 190 mm; 100 cm² probes: 293 × 119 × 121 mm; 170 cm² probes: 308 × 143 × 128 mm (L × W × H)1
WeightA 32 and 100 cm² probes: 600 g; AB 31: 630 g; 170 cm² probes: 740 g1

Ordering & accessories

ModelsA 32, AB 31, AB 100, A-B 100, AB 170, A-B 170, A-BG 1701

General

InstrumentSaphyRAD C1

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

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. 1
    Publisher: Bertin TechnologiesProduct page Product page; Product page – Characteristics of the probes Checked 2026-10-16
SaphyRAD C
Bertin

SaphyRAD C

Contamination meter

Energy range
Alpha: 3–8 MeV; beta: 100 keV–2.2 MeV
IP rating
IP52, monitor and probes
Weight
650 g
12 referenced values
PA-100 Detector
Rotem

PA-100 Detector

Air proportional alpha detector with a 100 cm² sensitive area

Detector
Air proportional alpha detector
Weight
1 kg
9 referenced values
GM-10 Detector
Rotem

GM-10 Detector

Pancake GM probe for alpha, beta and gamma surface contamination

Detector
Pancake GM tube LND 73118 or equivalent; mica window 1.5–2.0 mg/cm² behind a fine stainless-steel wire mesh
Count-rate range
0–42,000 cps
Weight
370 g (0.8 lb)
8 referenced values
INNOPROBE
ORTEC

INNOPROBE

Alpha/beta probe for the RADEAGLET-R

Detector type
Alpha/beta-sensitive scintillator with photomultiplier (ZnS:Ag)
Count-rate range
Up to 25 kcps alpha and 20 kcps beta
Weight
300 g (0.66 lb)
15 referenced values
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