RAYSEN Radiation Instruments Ltd. | Radiation Detectors and Solutions | RX101 High-Sensitivity Radiation Detector

RX101 High-Sensitivity Radiation Detector

A handheld radioactive contamination detector designed for everyday users. Built around a high-sensitivity CsI(Tl) solid scintillation crystal, it delivers an order of magnitude greater detection efficiency than conventional Geiger counters. One-button operation, real-time readout — no technical background required to inspect building materials, food, or your daily environment for radioactive contamination.

10×+

vs. Geiger Counter

580 g

Total Weight

25 keV

Low Energy Threshold

2 MeV

Energy Response Limit

RX101 High-Sensitivity Radiation Detector

Features

Key Features

Detector

10×10×10 mm³ CsI(Tl) solid scintillation crystal with significantly higher sensitivity than traditional Geiger counters

High Sensitivity

Detection efficiency exceeds conventional Geiger counters by an order of magnitude or more — trace contamination won't go unnoticed

Multi-Particle Detection

Responds to X-rays, gamma rays, fast neutrons, high-energy electrons, protons, and more

Broad Energy Response

25 keV to 2 MeV response range; note that detection efficiency decreases at higher energies for this crystal size

One-Button Operation

Power on and measure instantly — real-time count rate and trend curve displayed with zero learning curve

Dose Rate Measurement

0.1 μSv/h to 1 mSv/h measurement range with ±15% relative accuracy

Smart Alarm

Advanced algorithm sets alarm threshold automatically based on background level — audible and visual alert with low false-alarm rate

Portable Design

Smartphone-sized form factor at just 580 g — comfortable single-hand operation for on-site inspections

Long Battery Life

1800 mAh built-in battery with USB Type-C charging for convenient top-ups anywhere

Wide Temperature Range

Operates reliably from -10 °C to +50 °C — suitable for both indoor and outdoor use

Consumer-Friendly

Designed for home users and non-specialists — out of the box and ready to use, no training needed

Versatile Applications

Covers food screening, building material inspection, medical facility monitoring, and import/export cargo checks

Technical Specifications

Specifications

Parameter	Specification
Detector
Detector Type	Solid Scintillation Crystal — CsI(Tl)
Crystal Size	10 × 10 × 10 mm³
Detectable Particles	X-rays, Gamma rays, Neutrons, High-energy electrons, Protons
Energy Response Range	25 keV – 2 MeV
Measurement Performance
Count Rate Range	1 cps – 100,000 cps
Dose Rate Range	0.1 μSv/h – 1 mSv/h
Dose Rate Accuracy	±15% relative error
Alarm Mode	Audible & visual alarm; threshold auto-set from background
Electrical & Mechanical
Charging	USB Type-C
Battery Capacity	1800 mAh
Weight	580 g (nominal)
Dimensions	140 × 60 × 25.4 mm
Environmental
Operating Temperature	-10 °C to +50 °C

Application Scenarios

Applications

🏠

Building Materials

Rapid radioactivity screening of stone, tile, granite, and other construction materials

🥦

Food Safety

Preliminary screening of vegetables, seafood, and imported foods for radioactive contamination

🏥

Medical Facilities

Ambient radiation monitoring around radiology departments and nuclear medicine units

📦

Cargo Inspection

Spot-check screening of import/export goods and postal packages for radioactive contamination

🔬

Research & Education

Radiation safety demonstrations and background measurement in small laboratory settings