What Is Gamma Ray Spectrometry?
Gamma ray spectrometry is the
measurement of natural radiation, gamma rays, emitted by mineral- and rock-bound elements such as Potassium, Uranium and Thorium. Radiometric
surveys are used to detect and measure the gamma rays emitted by the top few centimeters of soil or rock.
Airborne Radiometric Surveys
radiometric surveys are completed using small aircraft equipped with
specialized sensors. Precision airborne gamma ray spectrometry
involves the use of digitally enhanced radiometric crystals which are typically
housed in packs of four or five crystals.
Today’s crystal packs are self-stabilizing and typically record a
minimum of 256 channels of data. Meteorological conditions, topography of the area as well as the speed
of the aircraft and the relative height of the sensor above ground all play
important roles in the effective measurement of gamma ray levels for a specific
Choosing an experienced and
respected geophysical survey company to execute airborne radiometric surveys is
the best way to ensure that the data acquired is as precise and accurate as
possible. Radiometric surveys are often flown simultaneously with aeromagnetics
and electromagnetics, providing a highly detailed geophysical picture of a
survey area. These companies have the aircraft,
technology and experience necessary to plan and execute different types of
airborne surveys (aeromagnetic, etc.) that provide thorough data collection,
which can be used for comprehensive geophysical mapping of geological structure.
Who Benefits from Gamma Ray Spectrometry?
and mineral exploration companies are the major beneficiaries of advances in
the field of gamma ray spectrometry. Airborne radiometric surveys are a primary
method of prospecting for naturally radioactive elements. Governments and
environmental agencies also take advantage of this technology in order to
identify the presence of these elements for radiation audits.
Gamma ray spectrometry is also used by many companies and organizations
interested in acquiring data for lithological mapping.