Detectors for FH- 40G Dose Rate Survey Meters

FH 40 TG Teleprobe

The Teleprobe FH 40 TG can be used with a display unit FH 40 G-X or together with any of the FH 40 G. In this case the FH 40 System allows the simultaneous dose and dose rate measurement at the operator’s location while measuring the dose rate at the teleprobe end - 4 meters away.

In normal use the measured value of the teleprobe detector is displayed, but, with the push of a button the operator can check the dose rate where he is actually standing. For both detectors independent alarm levels may be set - this is especially useful during search applications. The acoustic alarm is activated upon reaching either alarm level, as well as upon reaching an accumulated dose alarm in respect to the intrinsic detector of the survey meter.

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FHZ 632L Gamma Dose/Dose Rate Detector

The FHZ 632L Detector has a proportional counter tube for highly sensitive dose rate measurement of X-ray and gamma radiation. This detector fits the FH 40 G Teleprobe. Application: Highly sensitive gamma dose rate measurement. Measurement range: 10 μR/h - 10 R/h; Energy Range: 36 keV - 1.3 MeV.

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4254056 FHZ 632L Gamma Dose/Dose Rate Detector

FHZ 612 Gamma Dose, Dose Rate Detector

External dose rate probes including 2 GM’s with automatic range switching. The probes fit to the Teleprobe FH 40 TG. Application: Wide range dose rate measurement. Measurement Range: 10 μR/h - 1000 R/h; Energy Range: 82 keV - 1.3 MeV.

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4254052 FHZ 612 Gamma Dose, Dose Rate Detector

FHZ 312/302 Under Water Detector

The FHZ 312 / FHZ 302 are external high/middle range dose rate probes for measurement of gamma radiation up to 20 m under water. A 20 m special cable is included. Application: Under water gamma dose rate measurement. Measurement Range:
FHZ 312 - 10 mR/h - 10,000 R/h; FHZ 302 - 100 μR/h - 100 R/h.

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4254044 FHZ 312 Under Water Detector
4254041 FHZ 302 Under Water Detector

FHZ 512 with
Detector Bracket

FHZ 512/512A/512BGO
NaI Scintillation Detectors

The FHZ 512/512A/512BGO Detectors offer a cylindrical scintillation crystal and a photomultiplier for highly sensitive and integral measurements of gamma radiation. Application: Locating hidden gamma sources. Factory set for sensitivity from approx. 30 keV. Sensitivity to Cs137: FHZ 512L 3 s-1/(μR/h); FHZ 512A: 6 s-1/(μR/h); FHZ 512 BGO:
10 s-1/(μR/h).

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4254032 FHZ 512 NaI Scintillation Detector
4254028 FHZ 512A NaI Scintillation Detector
4254027 FHZ 512 BGO NaI Scintillation Detector
425402810 Probe bracket for FHZ 512/FHZ 512A
425402710 Probe bracket for FHZ 512 BGO

FHZ 502E/502P
NaI Scintillation Detector

The FHZ 502 E provides a 2” x 2” NaI(Tl) crystal detector of integral line construction. The aluminum housing is splash-proof, durable and with a foam plastic lining for impact protection and thermal insulation. BNC signal output allows direct connection of a MCA for special analysis. The FHZ 502 P is constructed in the same way as the FHZ 502 E but with a plastic housing and handle. The probe can be used with a special telescopic adapter. Application: High sensitivity gamma radiation measurement.

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4254045 FHZ 502E NaI Scintillation Detector
4254033 FHZ 502P NaI Scintillation Detector

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FHZ 503 E NaI Scintillation Detector

For enhanced sensitivity to high energy gamma radiation the FHZ 503 E with 3” x 3” NaI(Tl) crystal detector is available. BNC signal output allows direct connection of a MCA for special analysis. Sensitivity: 4000 s-1/(μSv/h) [40 s-1/(μR/h)]. Weight: approx. 4 kg (8.8 lb).

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4254063 FHZ 503 E NaI Scintillation Detector

FHZ 672E Plastic Scintillation
NBR Detector

The FHZ 672 E consists of a special detector of 750 cm³ organic scintillation material of integral line construction, voltage divider, high voltage generator, amplifier and discriminator thresholds and NBR process computer. (The NBR measurement method provides for extremely fast discrimination between natural and artificial gamma radiation.) The indication of artificial radiation is shown by LED on the probe, as well as visually in the display and audibly by the speaker of the meter. Application: Fast discrimination of natural and artificial gamma radiation. Energy range: 50 keV - 1.3 MeV.

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4254061 FHZ 672E Plastic Scintillation NBR Detector

FHZ 732/732 GM
Contamination Detectors

The FHZ 732 is designed for alpha and beta surface contamination measurement. The probe includes a permanently filled proportional counter tube. The FHZ 732 GM with a Geiger-Mueller counter tube is a low price alternative to the FHZ 732. With the FHZ 732 GM it is not possible to differentiate between alpha and beta radiation. Suitable for the four segment telescopic adapter with a special holder. Window Size: Sensitive area of approx. ø 44 mm [1.7”] = approx. 15 cm² [2.33 inch²]. Application: Alpha and beta surface contamination measurement.

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4254034 FHZ 732 Contamination Detector
4254036 FHZ 732 GM Contamination Detector

FHZ 742 Contamination Detector

The FHZ 742 Contamination Detector is used for measuring alpha and beta surface contamination. It includes a ZnS scintillation detector, the sensitive area covers approx. 125 cm². Window Thickness: 0.87 mg/cm²; Window Size: 100 mm x 125 mm [3.94” x 4.92”]. Application: Alpha and beta surface contamination measurement.

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4254039 FHZ 742 Contamination Detector

Neutron Detectors

A variety of neutron detectors are available for the FH 40 G.

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