Introduction

α, β Surface Contamination Monitor uses a ZnS-coated plastic scintillator probe to detect contamination on surfaces and wipe samples. It has a 170 cm² probe area and an adjustable measurement time from 1 to 999 seconds. Results are displayed in cps, Bq, and Bq/cm². Shortcut keys allow easy switching between α, β, and α+β modes without changing the probe. Our α、β Surface Contamination monitor includes a test stand to protect the device and offers an optional calibration accessory. It can detect contamination on worktops, floors, walls, clothing, and skin in radioactive environments and is suitable for both fixed and portable use.

This security systems is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

α, β Surface Contamination Monitors are widely used in security, environmental monitoring, health agencies, nuclear plants, emergency response, and related fields.

Specifications

Detector Type ZnS coated thin film plastic scintillator detector with optional GM tube detector
Measurement Time 1s to 999s (adjustable)
Probe Window Area 170 cm²
Units cps, Bq, Bq/cm²
Background Deductions Deductive and non-deductive, time settable
Background Count Rate α: < 0.1 cps, β: < 20 cps
Detector Efficiency 241Am: ≥ 33%, 90Sr/90Y: ≥ 35%
Repeatability < 10%
Relative Inherent Error ≤ ±25%
Alarm Methods Audible and visual alarm
Nuclide Library 26 nuclides with reset and auto-calibration
Operating Temperature -20°C to 50°C
Operating Humidity ≤ 90% (at 30°C, non-condensing)
Communication , optional Wi-Fi and Bluetooth
Data Storage Stores over 1000 measurements
Power Supply 2 alkaline AA or NiMH rechargeable batteries (35+ hours continuous use)
Dimension 158 × 302 × 132 mm
Weight 0.87 Kg (including battery)

Features

display

User-friendly interface

Lightweight design

Easy one-handed use

Nuclide libraries

FAQs

1. What is the It Surface Contamination Monitor used for, and where can it be applied?

It Surface Contamination Monitor is designed to detect and measure radioactive contamination on surfaces like worktops, floors, walls, clothing, and even skin. It is commonly used in nuclear power plants, health agencies, environmental monitoring, emergency response, and other radiation-sensitive environments. Its precise detection of alpha and beta particles helps ensure safety in workplaces dealing with radioactive materials.

2. What type of detector does the It use, and how efficient is it?

It uses a ZnS-coated thin film plastic scintillator detector, with an optional GM tube detector. This advanced detector is highly efficient in identifying both alpha and beta radiation. For example, it achieves a detector efficiency of ? 33% for Americium-241 (? source) and ? 35% for Strontium-90/Yttrium-90 (? source), making it reliable for accurate surface contamination monitoring.

3. How does the It display and manage measurement data?

The device displays results on an easy-to-read screen in units like cps (counts per second), Bq (becquerel), and Bq/cm². It includes a built-in nuclide library with 26 nuclides and supports auto-calibration and reset. The can store over 1000 measurements, and data can be easily transferred using , with optional Wi-Fi and Bluetooth communication available. This makes the monitor ideal for long-term field use and reporting.

4. Is the It Surface Contamination Monitor user-friendly and portable?

Yes, It is designed for ease of use. It has a lightweight and compact build, weighing only 0.87 kg (with batteries), and features a user-friendly interface. It allows one-handed operation and includes shortcut keys to switch between alpha, beta and alpha + beta detection modes without changing the probe. The device also comes with a protective test stand and offers over 35 hours of continuous use with 2 AA alkaline or NiMH rechargeable batteries.

5. What makes the It reliable for real-world use in radiation environments?

It operates reliably under a wide range of environmental conditions, with an operating temperature from -20°C to 50°C and humidity tolerance up to 90% (non-condensing). It has both audible and visual alarms for safety alerts, background deduction settings, and a repeatability of less than 10%. These features, combined with durable design and advanced contamination detection, make it suitable for both fixed installation and portable field operations.

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