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Personal Radiation Detectors PM1401GNA/GNB

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Personal Radiation Detectors PM1401GNA/GNB

Mô tả ngắn:The gamma-neutron personal radiation detectors allow searching and detecting of radioactive and nuclear materials. The detectors have a hermetic and shockproof case and are ideal for operation in the unfavorable and/or harsh environment.


Chi tiết:
 

PM1401GNA

Polimaster’s gamma-neutron personal radiation detector PM1401GNA is designed to detect the slightest amounts of the gamma and neutron radiation emitting materials especially in the extreme environment and the difficult-to-access areas. The optional telescopic extension tube can be used to protect the user from the radiation sources and/or inspect difficult-to-access areas. The instrument is equipped with a CsI(Tl) scintillation detector for detection of the gamma irradiation and a He-3 detector for detection of the neutron irradiation. The detector will alert the user if the radiation levels exceed the preset threshold values.

The PM1401GNA performs 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 personal radiation detector PM1401GNA is turned on, it automatically starts taking measurements and storing the background radiation information. The instruments 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 satisfying the requirements for the false alarm rate.

The PM1401GNA is additionally designed to ensure adequate adaptation to the background level so that the instrument can locate a radioactive source even in the changing radiological 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 PM1401GNA 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 the use by first responders, security guards, police, customs officers and border patrol. No special experience or training is necessary to operate the instrument.


PM1401GNB

In addition to the functions of the PM1401GNA model, the PM1401GNB 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 PM1401GNB is operating. In that way, the instrument's operator is being protected from the radiation exposure by distance.

Standards compliance

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

 

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Applications:


  PM1401GNA PM1401GNB
Detector    
gamma
CsI(Tl) CsI(Tl)
neutron
He-3 He-3
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
200 (s-1)/(μSv/h)
(2.0 (s-1)/(μR/h))
200 (s-1)/(μSv/h)
(2.0 (s-1)/(μR/h))
Sensitivity
- for Pu - α-Be
- for thermal neutrons
- for Pu - α-Be on a phantom or 
in the moderator chamber

- 0.1 (counts·cm2)/neutron
- 7.0 (counts·cm2)/neutron
- 1.0 (counts·cm2)/neutron

- 0.1 (counts·cm2)/neutron
- 7.0 (counts·cm2)/neutron
- 1.0 (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 MeV 0.033 – 3.0 MeV
neutron
from thermal to 14.0 MeV from 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)
neutron
1 - 999 s-1 1 - 999 s-1
DER measurement range 0.1 – 70 μSv/h (10 – 7000 μR/h) 0.1 – 70 μSv/h (10 – 7000 μR/h)
DE indication range x x
DE measurement range x x
Accuracy ±30% ±30%
Response time 0.25 s 0.25 s
Radionuclide identification using 
Bluetooth communication with 
external Pocket PC or smartphone
   
 
x 233U, 235U, 237Np, Pu
Medical radionuclides 
x 18F, 67Ga, 51Cr, 75Se, 89Sr,
99Mo, 99mTc,103Pd, 111In,
123I, 131I,153Sm, 201Ti, 133Xe
Naturally occurring radioactive  materials (NORM)
x 40K, 226Ra, 232Th and daughters, 
238U and daughters
Industrial radionuclides
x 57Co, 60Co, 133Ba, 137Cs, 192Ir, 
226Ra, 241Am
Alarm type visual, audio, vibration (external) visual, audio, vibration (external)
Data recording up to 1000 1000
Environmental protection IP65 IP65
Drop test on concrete floor 0.7 m (2.3 ft) 0.7 m (2.3 ft)
Power supply one cell XTREME POWER LINE АА (LR6) one cell XTREME POWER LINE АА (LR6)
Battery life time no less 1000 h no less 1000 h
 
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) 195х57х32 mm
 
195х57х32 mm
Weight    
Weight without package
0.45 kg 0.45 kg
Low battery warning LCD LCD
Overload indication    
gamma
OL OL
neutron
999 999
PC Communication IRDA IRDA, Bluetooth

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