RAYSEN Radiation Instruments Ltd. | Radiation Detectors and Solutions

RX105 Portable Gamma-ray Spectrometer

The RAYSEN RX105 is a handheld radiation spectrometer, built on the reliable RX102 platform. With a 1 cm³ CsI(Tl) scintillator and high-speed γ spectrometry, it delivers precise and rapid measurements of spectra and count rates, allowing on-site identification of radioactive contamination and isotopes.

It is equipped with a 1.2-inch display for real-time monitoring, Bluetooth connectivity for wireless data acquisition, and a 1000 mAh battery, all in a compact, handheld design. Data can also be acquired also via USB, while the Bluetooth interface enables live visualization of spectra on tablets and smartphones through dedicated App.

The RX105 is suited for applications such as screening building materials, ores, and food products for radiation, as well as checkpoint inspections, where fast and reliable detection is essential.

RAYSEN RX105 Handheld Radiation Spectrometer

Cs-137 energy spectrum measured by RX105

Real-time gamma count rate and spectra on tablet/smartphone interface

Features

Key Highlights

High-Sensitivity Detector

1 cm³ CsI(Tl) scintillation detector with high gamma-ray detection efficiency

Energy Resolution

Cs-137 (662 keV) resolution 7.2%

Automatic Gain Stabilization

Maintains long-term measurement stability

Multi-Channel Analyzer

Built-in 2048 channels for precise spectrum acquisition

Local Display

1.14-inch screen shows real-time gamma count rates

Battery

1000 mAh battery enables 3–5 hours of continuous operation

Advanced Analysis

Reliable identification of radioactive isotopes through spectrum analysis

Data Acquisition with Mobile App

Tablet or smartphone interface acquires and visualizes data via Bluetooth

PC Data Acquisition

Connect via USB; dedicated software collects and analyzes gamma spectra in real time

Handheld Design

Compact, lightweight, and ergonomically designed for on-site measurements

Technical Specifications

Specifications

Parameter	Specification / Description
Detector
Detector Type	10×10×10 mm³ CsI(Tl) scintillator with SiPM
Measured Radiation	Gamma rays
Energy Range	25 keV – 2 MeV
Energy Resolution	7.2 % (662 keV)
Dose Rate Range	0.1 μSv/h – 1 mSv/h
Multi-Channel Analyzer	2048 channels
Display & Interface
Display	1.14 in local display showing real-time count rates
Operating Temperature	-20 ℃ – 50 ℃
Operating Humidity	≤90 % (30 ℃, non-condensing)
Interface	USB / Bluetooth
Battery	1000 mAh rechargeable Li-ion battery

Application Scenarios

Applications

🏗️

Rapid Screening of Materials

Quick assessment of building materials, ores, and industrial products for radioactive contamination

🍎

Food and Product Inspection

Fast detection of radioactive contamination in food, beverages, and imported goods

🚪

Entrance / Exit Screening

Rapid checks at facility entrances, warehouses, or checkpoints for unauthorized radioactive materials

🔬

Scientific Research & Education

Experiments, teaching, and research using gamma spectroscopy and mobile visualization

🛡️

Public Safety Screening

Handheld detection for rapid assessment of radioactive contamination in public areas