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Personal Radiation Detector PM1703GN/GNA/GNB

The unique gamma-neutron personal radiation detectors for the search and detection of the radioactive and nuclear materials. The detectors measure simultaneously gamma and neutron radiation levels and alert a user if the radiation levels exceed the preset thresholds.
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Benefits:

Devices of PM1703 series have equal radiological characteristics with the main competing devices and have a number of user benefits:

  • due to special detection algorithm, devices are able to detect smaller excess in 2-5 times of gamma radiation above the natural background within the time normalized by standards. On the other hand, it enables to alarm in shorter time in comparison with the requirements of the standards
  • due to operating time from one AA battery up to 1000 h., benefit in operating cost of the device over 6-year period is achieved: for РМ1703 series – not more than 50 dollars, for other competing devices – 180-1000 dollars
  • at the same time devices of the PM1703 Series remain one of the smallest PRDs in the world
  • devices of PM1703 series is the best value for reasonable price

 

PM1703GN/GNA

Polimaster's gamma-neutron personal radiation detectors PM1703GN and PM1703GNA are designed to detect the slightest amounts of the gamma and neutron radiation emitting materials. The instruments are equipped with a CsI(Tl) (for gamma detection) and a LiI(Eu) (for neutron detection) scintillation detectors to alert the user that the radiation levels have exceeded the preset threshold values.

The PM1703GN/GNA perform the following functions:

  • Detect gamma and neutron radiation sources, even if they are shielded; 
  • Search for and locate the gamma or neutron radiation sources;
  • Alert the user of the presence of a radiation source through audible, visual and vibrating alarms;
  • Record and store data for up to 1000 events in the instruments' non-volatile memory; 
  • Transmit all recorded data to a PC via IR channel for the data processing and analysis.

Once the detector is turned on, it automatically starts taking measurements and storing the background radiation information. The personal radiation detectors PM1703GN and PM1703GNA can detect even the slightest increase in radiation environment that causes the radiation levels to exceed the preset thresholds. The instruments' advanced processing algorithm enables the user to update the background levels and setup the alarm thresholds thus adjusting to the specific radiation environments and satisfy the requirements for the false alarm rate.

The PM1703GN/GNA are additionally designed to ensure adequate adaptation to the background level so that the instruments can locate a radioactive source in changing environments. For example, the detectors are able to detect radiation sources when the background decreases due to radiation shielding or when the background radiation intensity is high requiring the source to be located among high radiation level.

The PM1703GN/GNA have a hermetic and shockproof case and the LCD screen's fluorescent backlight for easy operation even in the harshest, most unfavorable environments or weather conditions. The personal radiation detectors are recommended for first responders, security guards, police, customs officers and border patrol. No special experience or training is necessary to operate the instruments.

Standards compliance

Designed to meet ANSI N42.32-2006, ANSI N42.33 -2006, IEC 62401:2007, ITRAP+10 (IAEA) requirements

 

PM1703GNB

In addition to the functions of the PM1703GN/GNA models, the PM1703GNB model has Bluetooth module for communication with PDA or laptop PC, equipped with Polimaster proprietary identification software, and can be used for the radioisotope identification of the radiation source.

The Bluetooth module allows user to be at a safe distance from the possible radiation sources while the PM1703GNB is operating. In that way, the instrument's operator is being protected from the radiation exposure by distance.

Additional information about PM1703GNB is available here.

Standards compliance

Designed to meet ANSI N42.32-2006, ANSI N42.33 -2006, IEC 62401:2007, ANSI N42.48 - 2008, (ITRAP+10 (IAEA) requirements

 

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Applications:


PM1703GNPM1703GNAPM1703GNB
Detector
gamma
CsI(Tl)CsI(Tl)CsI(Tl)
neutron
Li6I (Eu)Li6I (Eu)Li6I (Eu)
Sensitivity
for 137Сs, no less
85 (s-1)/(μSv/h)
(0.85 (s-1)/(μR/h))
100 (s-1)/(μSv/h)
(1.0 (s-1)/(μR/h))
100 (s-1)/(μSv/h)
(1.0 (s-1)/(μR/h))
for 241Am, no less
100 (s-1)/(μSv/h)
(1.0 (s-1)/(μR/h))
200 (s-1)/(μSv/h)
(2.0 (s-1)/(μR/h))
100 (s-1)/(μSv/h)
(1.0 (s-1)/(μR/h))
Sensitivity
- for Pu - α-Be
- for thermal neutrons
- for Pu - α-Be on a phantom or
in the moderator chamber

- 0.035 (counts·cm2)/neutron
- 1.2 (counts·cm2)/neutron

- 0.07 (counts·cm2)/neutron
- 1.5 (counts·cm2)/neutron

- 0.07 (counts·cm2)/neutron
- 1.5 (counts·cm2)/neutron
Count rate range
Relative intrinsic error of count rate measurement
in range from 10 to 9999 s-1
Energy range
gamma
0.033 – 3.0 MeV0.033 – 3.0 MeV0.033 – 3.0 MeV
neutron
from thermal to 14.0 MeVfrom thermal to 14.0 MeVfrom thermal to 14.0 MeV
DER indication range
gamma
0.01 – 99.99 μSv/h
(1 – 9999 μR/h)
0.01 – 99.99 μSv/h
(1 – 9999 μR/h)
0.01 – 99.99 μSv/h
(1 – 9999 μR/h)
neutron
1 - 999 s-1001 - 999 s-1001 - 999 s-1
DER measurement rangexxx
DE indication rangexxx
DE measurement rangexxx
Accuracy±30% (in range 0.1 – 70 μSv/h
(10 – 7000 μR/h) )
(at 137Cs)
±30% (in range 0.1 – 70 μSv/h
(10 – 7000 μR/h) )
(at 137Cs)
±30% (in range 0.1 – 70 μSv/h
(10 – 7000 μR/h) )
(at 137Cs)
Response time0.25 s0.25 s0.25 s
Radionuclide identification using
Bluetooth communication with
external Pocket PC or smartphone
Special nuclear materials (SNM)
xx233U, 235U, 237Np, Pu
Medical radionuclides 
xx18F, 67Ga, 51Cr,
75Se, 89Sr, 99Mo, 99mTc,
103Pd, 111In, 123I, 131I,
153Sm, 201Ti, 133Xe
Naturally occurring radioactive  materials (NORM)
xx40K, 226Ra, 232Th and daughters,
238U and daughters
Industrial radionuclides
xx57Co, 60Co, 133Ba, 137Cs,
192Ir, 226Ra, 241Am
Alarm typevisual, audio, vibrationvisual, audio, vibrationvisual, audio, vibration
Data recording100010001000
Environmental protectionIP65IP65IP65
Drop test on concrete floor1.5 m (4.9 ft)
0.7 m (2.3 ft) without cover
1.5 m (4.9 ft)
0.7 m (2.3 ft) without cover
1.5 m (4.9 ft)
0.7 m (2.3 ft) without cover
Power supplyone cell Alkaline AA (LR6)),
no less than 2000 mA/h
one cell Alkaline AA (LR6)),
no less than 2000 mA/h
one cell POWER LINE AA (LR6)
or similar by parameters
Battery life timeat least 1,000 hup to 1000 hoursup to 1000 hours
Operating temperature-30°C to 50°C
(-22°F to 122°F)

LCD: - 20°C to + 50 °C
-30°C to 50°C
(-22°F to 122°F)

LCD: - 20°C to + 50 °C
-30°C to 50°C
(-22°F to 122°F)

LCD: - 15°C to + 50 °C
Size (without cover)72 x 32 x 87 mm
(2 7/8'' x 1¼'' x 3 3/8'')
72 x 32 x 87 mm
(2 7/8'' x 1 1/4'' x 3 3/8'')
75 x 35 x 98 mm
(2 15/16’’ x 1 3/8’’ x 3 7/8’’)
Weight
Weight without package
180 g (6.35 oz)180 g (6.35 oz)230 g (8.1 oz)
Low battery warningLCDLCDLCD
Overload indication
gamma
OLOLOL
neutron
999999999
PC CommunicationIRDAIRDAIRDA, Bluetooth