Radiation (Overall)

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RadEye Product Family

With the RadEye Product Family, Thermo Fisher Scientific offers a wide range of advanced
handheld instruments for radiation detection, gamma dose rate measurements and area
monitoring.
This guide offers a brief description and technical characteristics for each instrument. For
more detailed technical specifications, please contact your local sales representative or your
appropriate customer service assistant.

Technical specification of the Thermo Scientific RadEye SX
Order number# 4250693
Measured quantities (with FHZ 674 NBR)Count rate (cps, cpm), dose rate (Sv/h, rem/h), NBR
Probe cablesRG 58, max. 1.5 m (59”) – MHV connector
High voltage range300 V…1400 V with output impedance 2 MΩ, typically 600 V for FHZ 674 NBR
Alarm thresholdTwo alarm thresholds for count rate, dose and dose rate each, NBR
Audible alarm intensity80 dB at a distance of 30 cm (11.8”)
Working temperature-20 °C ... + 50 °C (-4 °F ... 122 °F)
Scaler/TimerPreset count, preset time
EMCDisturbance emission: EN 61000-6-3, Immunity: EN 61000-6-2
Size110 mm x 67 mm x 62 mm (4.3” x 2.6” x 2.4”), with rubber protection, without cable
WeightAround 160 g (5.6 oz) including 2 ea. AAA cells and protection sleeve
Internal memoryThe last 1600 measured values are saved and can be read out via PC program. Max and mean value
of count rate and dose rate. The time interval is factory preset to 120 s by default. As well scaler
measure ments and momentaneous readings can be stored manually. Logbook with 250 entries for
changes of con figuration, occurring alarms and errors
Battery life timeTypically 150 h with FHZ 674 NBR
Technical specification of the Thermo Scientific FHZ 674
Order number# 4250750
Detection Sensitivityapprox. 4000 cps per μSv/h at 662 keV, highly sensitive from 15 keV (front), respectively 30 keV (side)
Energy response (H*(10))Exceeds IEC 62533* requirements (+/- 30 % for Am-241, Cs-137, Co-60)
Dose rate range (Cs-137)0.01 μSv/h to 100 μSv/h
Weight2800 g excluding shoulder strap (200 g) and RadEye SX (160 g)
Dimensions308 mm x 230 mm x 110 mm

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Radiation (Overall)
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RadEye-SPRD-GN

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RIID capability in the palm of your hand

The Thermo Scientific™ RadEye™ SPRD-GN personal radiation detector is the first pager-sized PRD that substantially exceeds the neutron alarm requirements of ANSI N42.48 2008 and ANSI N42.32 2016. With outstanding neutron performance and reliable gamma IDs, the RadEye SPRD-GN may be the only radiation detection tool you will need.

RadEye SPRD-GN specifications

Radiation DetectedGamma and Neutron
DetectorCLYC (Cs2LiYCl6)
Energy Resolution (662 keV)7.0%
Sensitivity (cps per μSv/h (662 keV))110
NBR (Natural Background Rejection)Advanced with 6 energy windows
Alarm NotificationDisplay, LED, Sounder, Vibe
Dose Rate Range1 μR/h - 25mR/h (10 nSv/h - 250 μSv/h)
Energy Range (+/- 30%)60keV - 3 MeV
Typical ID Time @ 1μSv/h (100μR/h)~ 5 minutes
Gain StabilizationPatent pending continuous source-less stabilization
Neutron Verificationthermal neutrons & fast neutrons
Neutron Alarm Response<2 sec vs. ANSI N42.48 2008
1 sec vs. ANSI N42.32 2016
Thermal Neutron Sensitivity (cps/nv)4
Designed to Meet SpecificationANSI N42.48 2008
Battery TypeAAA x 2
Estimated Battery Life~ 120 hrs
Weight including Batteries and Rubber Sleeve (g)175
Water/Dust RatingIP65
Drop Distance onto Concrete1.5m
Wireless CommunicationsBT4 optional
Wired CommunicationsUSB to IR

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RadEye-SPRD-GN
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RadEye-NL-Brochure-WEB

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High sensitivity for neutron radiation in a hand-held unit.

The Thermo Scientific™ RadEye™ NL delivers portability for neutron measurements primarily for nuclear facilities such as power plants and particle accelerators. Historically, spherical or cylindrical Remcounters have been used which are heavy and bulky. And in some applications, the cumbersome nature of Remcounters can make them infeasible or possibly even dangerous depending on the application. The Radeye NL is a small lightweight pager which can be conveniently carried in the hand, worn in a holster, or used with a telescopic extender for intensity measurements of low energy neutrons. After insertion into a 2 kg “Rem-Shoe” with handle, energy compensated neutron dose rate response is provided with semispherical acceptance angle.

RadEye NL Specifications

Weight160 g (5.6 oz)
Dimensions96 x 61 x 31 mm (3.8” x 2.4” 1.2”)
DetectorHe-3 tube with 2.5 bar filling pressure
Sensitivity in ModeratorCf-252 0.19 cps/μ Sv/h
AmBe 0.15 cps/μ Sv/h
16.5 MeV 0.03 cps/μ Sv/h
Sensitivity when worn at the body1.5 cps/mrem/h for Cf-252
Gamma spill-over< 0.2 cps at 100 mSv/h (10 R/h) Cs-137 radiation
Measuring unitsCount rate (cps) moving average over 10 s
Mean value and peak value over any time period
Data display and recordingLinear and ADF-Ratemeter (Advanced Digital Filter)
Mean and Peak value over any selected time period
Water/Dust RatingIP65
Drop Distance on Concrete1.5m
Operation time
(2 AAA alkaline batteries)		500 h

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RadEye-NL-Brochure-WEB
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RadEye-B20-B20ER

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Thermo Scientific RadEye instruments for contamination and dose rate measurements are the perfect solution for:

• First Responders
• Homeland Security
• Fire Service
• Emergency Response Personnel
• Hospitals
• Nuclear Industry
• Pharmaceutical Industry

Technical Specification for RadEye B20 / B20-ER

Detector1 pancake GM-tube, window dia. 44 mm (1.7”); 1.8 – 2.0 mg/cm²)
Measuring range according IEC 60846-1

Display resolution:		0,2 μSv/h - 2 mSv/h [20 μrem - 200 mrem/h] RadEye B20
0,2 μSv/h - 100 mSv/h [20 μrem/h - 10 rem/h] RadEye B20 ER
0,01 μSv/h
Measuring range (contamination):0 - 10 kcps RadEye B20
0 - 500 kcps RadEye B20-ER
2 π efficiency (ref. to 50 mm diameter
(without rubber sleeve):		Am-241: 28%; Co-60: 25%; Sr/Y-90: 36%; C-14: 19 %
Energy range (with gamma energy filters
H*(10) or H´(0.07))		17 keV – 3 MeV according to IEC 60846-1
Weight and maximum dimensions:300 g (0.7 lb); 13 cm x 7 cm x 6 cm (5.2” x 2.8” x 2.4”)
Alarm indicationLED, sound, vibrator

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RadEye B20 / B20-ER
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RadEye G20-10 Datasheet

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RadEye G20-10 / G20-ER10

X-ray and gamma survey meters for ambient equivalent dose and dose rate measurement

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RadEye G20-10 / G20-ER10
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Personal Radiation Detector

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When the threat is real, you need quick and accurate identification

The Thermo Scientific™ RadEye™ SPRD Spectroscopic Personal Radiation Detector helps you locate and identify radioactive nuclides such as those employed in nuclear weapons and dirty bombs in a pager sized PRD.

Specifications and ordering information

ModelRadEye SPRDRadEye SPRD-GN
Radiation detectedGammaGamma Neutron
DetectorCsICLYC (Cs2LiYCl6)
Energy resolution (662 keV)7.5%7.5%
cps per μSv/h (662 keV)100110
ID-time @ 1μSv/h< 5 min< 5 min
Detection from40 keV50 keV
NBR (Natural Background Rejection)goodgood
PSD (Pulse Shape Discrimination)noyes
Neutron Alarm Response
ANSI N42.48-2008		noYes (< 2 s)
Neutron verificationvia prompt gammathermal neutrons & fast neutrons
Estimated Battery Life180 hrs120 hrs
First Preventers use for both interdiction and
personal protection when radiation monitoring is not
your primary function.
Capable of distinguishing NORM sources such as
granite or bananas from artificial sources such as
medical, industrial and SNM immediately through
advanced NBR.
ID capability can fully adjudicate medical patients
from threat nuclides.
Respond to an emergency at a hospital, alarms that
dose rates are high near the blood irradiation area		4 times more sensitive to neutrons compared to RIID devices
Ideally suited as primary screeing tool at borders, on boats
and remote outposts where larger detection systems are not
available

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Personal Radiation Detector
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