Natural stone such as marble and granite is widely used for countertops, flooring, wall finishes, construction and interior decoration.

Because stone is a natural geological material, customers involved in importing, supplying or inspecting stone may sometimes want to perform preliminary radiation monitoring.

A portable Geiger Counter or Nuclear Radiation Detector can be used to detect supported ionizing radiation reaching its sensor and compare readings between materials or locations.

For customers looking for a Radiation Detector for Marble and Granite in Malaysia, MTM Precision offers portable options including the WINTACT WT3130 and FNIRSI GC Series.

Why Measure Radiation Around Natural Stone?

Natural materials originate from different geological environments.

Radiation monitoring may be considered when users want to:

• Compare radiation readings between stone samples

• Check imported stone materials

• Screen marble or granite

• Monitor mineral samples

• Check unusual radiation readings

• Perform general environmental radiation monitoring

• Conduct preliminary material screening

A portable detector provides a convenient way to take measurements without installing a permanent monitoring system.

Can a Geiger Counter Detect Radiation from Marble or Granite?

A Geiger counter detects supported ionizing radiation rather than identifying marble, granite or other materials.

When radiation reaches the detector, the instrument produces a measurement.

Therefore, a handheld radiation detector can be placed near a stone or mineral sample as part of a preliminary screening procedure.

However, the result depends on several factors, including:

• Radiation type

• Radiation energy

• Activity of radioactive material

• Distance from the detector

• Size and geometry of the sample

• Detector sensitivity

• Shielding

• Natural background radiation

A portable reading should therefore be interpreted as radiation monitoring data rather than a complete laboratory analysis of the stone.

FNIRSI GC-02 for Marble and Ore Inspection

MTM Precision offers the FNIRSI GC-02 Geiger Counter Nuclear Radiation Detector.

The GC-02 uses an Energy Compensation GM tube and is designed to detect:

• Gamma radiation

• X-ray radiation

• Beta radiation

The product applications listed by MTM Precision include Marble & Ore Inspection.

This makes GC-02 an interesting portable option for users looking to perform preliminary radiation screening around natural stone, minerals and related materials.

View FNIRSI GC-02 at MTM Precision:
https://www.mtmpre.com.my/showproducts/productid/6295351/cid/376617/fnirsi-gc02-geiger-counter-nuclear-radiation-detector/

WINTACT WT3130 Nuclear Radiation Detector

The WINTACT WT3130 provides another option for portable ionizing radiation monitoring.

According to its product specifications, WT3130 is designed to detect:

• X-ray

• Beta (β) radiation

• Gamma (γ) radiation

It provides both real-time dose measurement and cumulative dose measurement.

WT3130 Radiation Measurement Range

The WT3130 has a specified real-time measuring range of:

0–10,000 μSv/h (10 mSv/h)

Its cumulative measurement range is:

0–500,000 μSv (500 mSv)

The specified energy range is:

48 keV–1.5 MeV

Sensitivity is specified as:

80 CPM/μSv (Co-60)

These specifications should be compared against the actual monitoring requirements before selecting an instrument.

How to Compare Radiation Readings Between Stone Samples

When performing preliminary screening, consistency is important.

Measurements can be influenced by detector position and distance.

For comparison purposes, users should avoid randomly changing the measurement conditions for every sample.

A basic comparison approach may involve:

1. Observe the normal background radiation in the measurement area.

2. Position the detector consistently.

3. Measure one sample.

4. Allow sufficient time to observe the reading.

5. Repeat the measurement if necessary.

6. Compare the result with the background and other samples.

This does not turn a portable Geiger counter into laboratory analytical equipment, but it can make preliminary comparisons more meaningful.

Why Background Radiation Matters

A Geiger counter normally displays some radiation because natural background radiation exists in the environment.

Therefore:

A reading above zero does not automatically mean that a marble or granite sample is dangerously radioactive.

Users should first understand the normal background reading at the location.

Measurements taken near the material can then be compared with that background.

If an unusual and repeatable increase is observed, further investigation may be appropriate.

Real-Time Data Tracking with WT3130

The WT3130 provides real-time data tracking on its LCD display.

This can be useful when moving the detector between different stone samples.

Instead of looking only at one instantaneous number, the operator can observe changes in measurement data.

The WT3130 also provides an average measurement display.

These functions can assist users when comparing measurements between different inspection points.

Radiation Alarm Function

The WT3130 includes:

• Sound alarm

• Visual alarm

• Adjustable alarm value

For users inspecting multiple materials, an alarm provides additional indication without requiring continuous observation of the screen.

Alarm settings should be established according to the monitoring procedure and relevant safety requirements.

FNIRSI GC-01 for General Radiation Monitoring

MTM Precision also offers the FNIRSI GC-01 Nuclear Radiation Detector.

GC-01 provides portable gamma, X-ray and beta radiation detection together with several measurement units and alarm functions.

It can be considered for general portable radiation monitoring and preliminary screening applications.

View FNIRSI GC-01 at MTM Precision:
https://www.mtmpre.com.my/showproducts/productid/6295045/fnirsi-gc01-nuclear-radiation-detector/

Can a Geiger Counter Identify Uranium or Other Specific Radioactive Materials?

A basic portable Geiger counter detects supported ionizing radiation.

This does not mean it automatically identifies the radioactive substance responsible for the reading.

For example, an increased reading does not by itself prove that uranium or another particular radionuclide is present.

Identifying specific radionuclides requires appropriate analytical technology and measurement procedures.

The WT3130 product information describes radiation detection and dose measurement; it does not state radionuclide identification capability.

Can a Geiger Counter Certify Marble or Granite as Safe?

A handheld radiation detector can provide useful screening information, but it should not automatically be represented as an official certification instrument.

Regulatory or compliance testing may require:

• Defined measurement procedures

• Appropriate calibrated instrumentation

• Specific measurement geometry

• Laboratory analysis

• Qualified personnel

• Applicable standards or regulatory requirements

The portable Geiger counter is better positioned as a preliminary radiation screening and monitoring instrument.

Who May Use a Portable Radiation Detector for Stone Inspection?

Potential users may include:

• Marble suppliers

• Granite suppliers

• Stone importers

• Building material companies

• Contractors

• Interior material suppliers

• Laboratories

• Mineral suppliers

• Industrial inspection teams

• Environmental monitoring personnel

The appropriate detector and testing method depend on the objective of the measurement.

GC-01 vs GC-02 vs WT3130 for Material Screening

MTM Precision provides several portable choices.

FNIRSI GC-01
Suitable for general portable radiation monitoring.

FNIRSI GC-02
Particularly relevant because its listed applications include marble and ore inspection.

WINTACT WT3130
Provides X-ray, beta and gamma detection together with real-time data tracking, cumulative dose measurement and adjustable alarms.

Customers should compare specifications rather than selecting a detector based only on price.

Radiation Detector for Marble and Granite Malaysia

MTM Precision supplies testing and measurement instruments for industrial, laboratory, environmental and technical applications in Malaysia.

Explore available portable radiation detectors:

FNIRSI GC-01 Nuclear Radiation Detector
https://www.mtmpre.com.my/showproducts/productid/6295045/fnirsi-gc01-nuclear-radiation-detector/

FNIRSI GC-02 Geiger Counter Nuclear Radiation Detector
https://www.mtmpre.com.my/showproducts/productid/6295351/cid/376617/fnirsi-gc02-geiger-counter-nuclear-radiation-detector/

For enquiries about Radiation Detectors for Marble, Granite, Stone and Ore Inspection in Malaysia, contact:

MTM Precision Sdn Bhd

Showroom & Service Centre
No. 29-1 & 29-2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia.

Website: www.mtmpre.com.my
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com

Contact MTM Precision for assistance selecting a portable Geiger counter or nuclear radiation detector for material screening applications.