Nuclear Instruments
Section One .Laboratory Radiation Measuring Instruments Section Two.Portable Style Radiation Detection Instrument Section Three.Radioactive contamination monitor Section Four.Radioactive waste measurements Section Five.Underwater Radioactivity Measuring Device Section Six.Area Radiation Measurement Section Seven.Tritium Air Monitors
Neutron-Gamma Personal Dosimeter
Product details


Fig. 1 TK-208 neutron-gamma personal dosimeter

. Product Introduction

TK-208 is a neutron-gamma personal dosimeter using the latest international high-sensitive personal dose device developed with a new single crystal, as shown in Figure 1. Compared with the conventional neutron-gamma personal dosimeter using a (CsI+LiI(Eu)) as a detection unit, the structure and circuit are simpler and more reliable, and the gamma energy resolution is higher, and the neutron detection efficiency is higher. The crystal used in NPG-1 has a large volume, with high sensitivity and with high 6Li abundance, and the sensitivity is higher more than 1000 times than that of the neutron-gamma personal dosimeter using semiconductors as a detector. The unique energy compensation design effectively guarantees the reliability of the measurement results.

. Main Features

l  A single crystal is used to measure neutrons and gamma-ray simultaneously, greatly simplifying the structure and circuit, and enhancing reliability;

l  Energy compensation design is used, to get reliable data;

l  n-γ discrimination technology is used, with the neutron and gamma channel interfering effectively controlled;

l  High-density crystal is used, with high detection efficiency, which can detect dose rate changes of 10nSv / h; To support the networking and GIS, achieving the intelligent and network measurement of the staff dose and field radiation.

. Technical Specifications

l   To measure neutron and gamma dose rate simultaneously;

l  Detector: CLYC crystal;

l  Alarm: sound, light and vibration alarm;

l  Sensitivity: γ: not less than 600cps (1μSv / h) for 137Cs;

             Neutrons: not less than 300cps (1μSv / h) for 241Am;

l  Dose rate: γ: 0.01μSv / h to 0.1mSv / h;

l  Neutron count rate: 1-999 / s;

l  Energy range: γ: 20keV-3MeV; neutrons: thermal neutrons to 15MeV;

l  Error range: ± 20%;

l  Protection level: IP65;

l  Response time: 0.25s;

l  Standby time: working for 250h continuously;

l  Power supply: built-in rechargeable lithium battery, with wireless charging;

l  Operating ambient temperature: -30 to 50;

l  Weight: 200 g;

l  Communication: to support USB and Bluetooth communication;

l  Ground drop test: at 1.5m from the cement ground.  

. Applications

l  Used by staff working in nuclear power plants, nuclear submarines, nuclear arsenals and other neutron - gamma radiation field and also by staff working in the site having neutron – gamma radiation field. 

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