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The unique gamma-neutron personal radiation detectors for the search and detection of the radioactive and nuclear materials including nuclear weapons. 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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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:
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.
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 the PM1703GNB is available here.
| PM1703GN | PM1703GNA | PM1703GNB | |
|---|---|---|---|
| Detector | |||
gamma | CsI(Tl) | CsI(Tl) | CsI(Tl) |
neutron | Li6I (Eu) | Li6I (Eu) | Li6I (Eu) |
| Sensitivity | |||
for 137Сs, no less | 100 (s-1)/(μSv/h) (1.0 (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)) | 200 (s-1)/(μSv/h) (2.0 (s-1)/(μR/h)) |
| Energy range | |||
gamma | 0.033 – 3.0 MeV | 0.033 – 3.0 MeV | 0.033 – 3.0 MeV |
neutron | from thermal to 14.0 MeV | from thermal to 14.0 MeV | from thermal to 14.0 MeV |
| Dose Rate | |||
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-1 | 1 - 999 s-1 | 1 - 999 s-1 |
| Dose |  | | |
| Accuracy (at 137Cs) | ±30% (in range 0.1 – 70 μSv/h (10 – 7000 μR/h) ) | ±30% (in range 0.1 – 70 μSv/h (10 – 7000 μR/h) ) | ±30% (in range 0.1 – 70 μSv/h (10 – 7000 μR/h) ) |
| Response time | 0.25 s | 0.25 s | 0.25 s |
| Radionuclide identification | |||
Special nuclear materials (SNM) | | | 233U, 235U, 237Np, Pu |
Medical radionuclides | | | 18F, 67Ga, 51Cr, 75Se, 89Sr, 99Mo, 99mTc, 103Pd, 111In, 123I, 131I, 153Sm, 201Ti, 133Xe |
Naturally occurring radioactive materials (NORM) | | | 40K, 226Ra, 232Th and daughters, 238U and daughters |
Industrial radionuclides | | | 57Co, 60Co, 133Ba, 137Cs, 192Ir, 226Ra, 241Am |
| Standards compliance | ITRAP/IAEA requirements, ANSI N42.32, ANSI N42.33(1), IEC 62401 | ITRAP/IAEA requirements, ANSI N42.32, ANSI N42.33(1), IEC 62401 | ITRAP/IAEA requirements, ANSI N42.32, ANSI N42.33 (1), ANSI N42.34, IEC 62401 |
| Alarm type | visual, audio, vibration | visual, audio, vibration | visual, audio, vibration |
| Data recording | 1000 | 1000 | 1000 |
| Environmental protection | IP65 | IP65 | IP65 |
| Drop test on concrete floor | 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 | 1.5 m (4.9 ft) 0.7 m (2.3 ft) without cover |
| Power supply | one AA battery | one AA battery | one AA battery |
| Battery life time | up to 1000 hours | up to 1000 hours | up to 1000 hours |
| Operating temperature | -30°C to 50°C (-22°F to 122°F) | -30°C to 50°C (-22°F to 122°F) | -30°C to 50°C (-22°F to 122°F) |
| 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 | |||
(without cover) | 200 g (7.05 oz) | 200 g (7.05 oz) | 230 g (8.1 oz) |
(with cover) | 240 g (8.5 oz) | 240 g (8.5 oz) | 270 g (9.5 oz) |
| Low battery warning | LCD | LCD | LCD |
| Overload indication | |||
gamma | OL | OL | OL |
neutron | 999 | 999 | 999 |
| PC Communication | IRDA | IRDA | IRDA, Bluetooth |
