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Gamma Personal Radiation Detectors - PM1401MA / MB

High sensitive personal gamma radiation detectors designed to operate in the harsh environment. The detectors are used both for search of the radiation and nuclear materials and evaluation of the radiation level.
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PM1401MA

Gamma Personal Radiation Detectors PM1401MA are used for detecting and locating gamma radiation sources especially in the extreme environment and the difficult-to-access areas. To protect the user from the radiation sources and inspect difficult-to-access areas, the optional telescopic extension tube is provided.

The PM1401MA performs the following functions:

  • Detect gamma radiation sources, even when they are shielded;
  • Alert the user to 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 PRD is turned on, it automatically starts taking measurements and storing the background radiation information. The personal radiation detector PM1401MA can detect even the slightest increase that causes the levels to exceed the radiation background. The instruments' advanced processing algorithm enables the user to update the background levels and setup the alarm thresholds depending on the probability and false alarm rate requirements.

The PM1401MA is additionally designed to ensure adequate adaptation to the background level so that the instrument can locate a radioactive source in changing environments. For example, the detector is 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 PM1401MA has 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 detector is recommended for first responders, security guards, police, customs officers and border patrol. No special experience or training is necessary to operate the instrument.

PM1401MB

In addition to the functions of the PM1401MA model, the PM1401MB 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 PM1401MB is operating. In that way, the instrument's operator is being protected from the radiation exposure by distance.

Additional information about the PM1401MB is available here.

Standards compliance

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

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PM1401MAPM1401MB
Detector
gamma
CsI(Tl)CsI(Tl)
neutron
xx
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))
for 241Am, no less
100 (s-1)/(μSv/h)
(1.0 (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
xx
Energy range
gamma
0.06 – 3.0 MeV0.06 – 3.0 MeV
neutron
xx
DER indication range xx
gamma
0.01 – 99.99 μSv/h
(1 – 9999 μR/h)
0.01 – 99.99 μSv/h
(1 – 9999 μR/h)
neutron
xx
DER measurement range 0.05 - 40.0 μSv/h0.05 - 40.0 μSv/h
DE indication rangexx
DE measurement rangexx
Accuracy±(20+1/Ḣ)%

- where Ḣ = DER, μSv/h
±(20+1/Ḣ)%

- where Ḣ = DER, μSv/h
Response time0.25 s0.25 s
Radionuclide identification using
Bluetooth communication with
external Pocket PC or smartphone
Special nuclear materials (SNM)
x233U, 235U, 237Np, Pu
Medical radionuclides 
x18F, 67Ga, 51Cr, 75Se, 89Sr,
99Mo, 99mTc,103Pd, 111In,
123I, 131I,153Sm, 201Ti, 133Xe
Naturally occurring radioactive  materials (NORM)
x40K, 226Ra, 232Th and daughters,
238U and daughters
Industrial radionuclides
x57Co, 60Co, 133Ba, 137Cs, 192Ir,
226Ra, 241Am
Alarm typevisual, audio, vibrationvisual, audio, vibration
Data recording10001000
Environmental protectionIP65IP65
Drop test on concrete floor0,7 m 0,7 m
Power supplyone AA batteryone AA battery
Battery life timeup to 800 hours800 hours
Operating temperature-30°C to 50°C
(-22°F to 122°F)
-30°C to 50°C
(-22°F to 122°F)
Size (without cover)110 x 57 x 32 mm

110 x 57 x 32 mm
Weight
Weight without package
0,32 kg

(including vibration alarm device)
0,32 kg

(including vibration alarm device)
Low battery warningLCDLCD
Overload indication
gamma
OLOL
neutron
xx
PC CommunicationIRDAIRDA, Bluetooth