Portable X and gamma dose rate meters

portableX、 Gamma dose rate meterJN-73Purpose:

measurementXRadiation exposure, dose equivalent rate, absorbed dose rate, etc.

portableX、 Gamma dose rate meterJN-73Technical parameters:

Detection object:XC, A, B

biography feel Instrument: United StatesLND7311Mica end window sensor

Detection principle: Geiger counter

Radiation dose rate measurement range:0.015MSv/h～10mSv/h

Radiation dose range:0～99.99Sv

Range of radioactive activity measurement:0～50000Bq/cm²

Alpha surface emissivity response:>0.21(Based on americiumAm-241)

β surface emissivity response:>0.3

Energy compensation range:48keV～2MeV

Energy response range:33keV～10MeV

sensitivity(Cs137)：5.50CPS/MSv/h(Energy compensation slide open)，4.55CPS/MSv/h(Energy compensation slide cover closed)；

Alarm response timetd: Below7s

Alarm threshold deviation: ±10%

Measurement accuracy: ±10%

Charging duration: approximately3.5hour

Battery capacity:3.7V 2000mAh

Battery life: approximately7sky(When the screen is turned off)

charging portTYPE-Cinterface(The green light stays on during charging and goes off when fully charged)

Host size: Long15.5cm, wide8cm, high3.3cm

Working environment: Temperature-20℃～50℃, humidity below95%RH.

portableX、 Gamma dose rate meterJN-73Product Features:

1Real time measurement of dose rate and simultaneous recording of cumulative dose;

2Equivalent dose rate or effective dose rate μSv/hExposure rate μR/hNumber of ionization pulses detected per minuteCPMThe number of ionization pulses detected per secondCPS、 放射性活度BqNumber of radioactive nuclear decays detected per square centimeter per second in the areaBq/cmMultiple radiation units;

3Has surface radioactivity response detection function, used for detecting alpha and beta surface contamination detection;

4Adopting the United StatesLND7311Mica end window sensor;

5The energy compensation slide cover has an energy compensation function for measurementX、 Gamma rays are more accurate, while alpha and beta rays are more sensitive

6The dose rate alarm threshold, dose alarm threshold, and surface activity response threshold can all be set

7Surface activity response supports background collection and background subtraction functions

8Surface activity response supports both single sampling and continuous sampling modes

9You can view the starting time and longest time of the current dose accumulation9999hour

10With a curve chart, it provides a more intuitive view of the nearby area270Second waveform diagram

11、 可保存最近100Historical record information of secondary measurements

12It has a calendar clock function, which can ensure the normal operation of the clock after shutdown

13Free switching between Chinese and English menus

14The counting sound function can reflect radiation intensity based on sound density

15The embedded telescopic rod fixing nut can be adapted to extend the telescopic rod for remote measurementQuantity.