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Related Experiment Video

Updated: May 26, 2026

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

Published on: September 11, 2016

Development of a surface scanning soil analysis instrument.

S Falahat¹, T Köble, O Schumann

¹Australian Nuclear Science and Technology Organisation (ANSTO), Institute for Environmental Research, Locked Bag 2001, Kirrawee DC, 2232, NSW, Australia. sfalahat@gmail.com

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine

|December 30, 2011

Summary

ANSTO developed a nuclear instrument for soil analysis, measuring elements like carbon using neutron activation. This portable device offers advantages over traditional soil sampling and lab methods.

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Last Updated: May 26, 2026

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Area of Science:

Nuclear geophysics
Environmental science
Analytical chemistry

Background:

Traditional soil analysis involves time-consuming sampling and laboratory procedures.
Accurate soil composition data, especially for carbon, is crucial for environmental monitoring and agriculture.
Existing field methods may lack the precision and elemental range required for comprehensive soil assessment.

Purpose of the Study:

To develop a novel nuclear field instrument for in-situ soil composition measurement.
To utilize neutron activation techniques for quantifying elements, with a focus on soil carbon.
To demonstrate the feasibility and advantages of a portable instrument over conventional methods.

Main Methods:

Development of a compact, field-portable pulsed neutron generator.
Integration of a gamma-ray detector for simultaneous Prompt Gamma Neutron Activation Analysis (PGNAA) and Neutron Induced Gamma Spectroscopy (INS) techniques.
Application to homogenized soil volumes, targeting topsoil layers.

Main Results:

Successful quantification of multiple elements within homogenized soil samples.
Demonstration of simultaneous PGNAA and INS for comprehensive elemental analysis.
Initial test experiments show promising results for field-based soil composition measurement.

Conclusions:

The developed nuclear instrument offers a promising alternative for rapid, in-situ soil analysis.
Simultaneous application of PGNAA and INS techniques enables multi-elemental quantification in the field.
The portable neutron generator and detector system presents clear advantages over traditional soil analysis methods.