Calibration and data processing for airborne gamma-ray spectrometry

The shape and intensity of multichannel airborne gamma-ray spectra are influenced by many variables. The role of data processing is to correct the data for those influences not related to the geology, and to transform the observed spectra to equivalent concentrations of radioelements in the ground. The data need to be corrected for dead time, energy drift, and background radiation before being inverted to elemental count rates. The elemental count rates are then corrected for variations in the terrain clearance of the detector and reduced to elemental concentrations in the ground. Statistical errors in the raw data are propagated by the data processing procedures. The removal of background radiation increases the fractional errors for each of the potassium, uranium and thorium window count rates. The fractional errors in the potassium and uranium window count rates are also amplified by the stripping procedure. Large errors can be introduced into the data through the height correction procedure if radon background is not adequately removed. Radon background can be adequately removed using a spectral-ratio method.

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Identification info

Date (Publication)
1997-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81492

Cited responsible party
Role Organisation / Individual Name Details
Author

Minty, B.R.S.

 External Contact
Author

Luyendyk, A.P.J.

 External Contact
Author

Brodie, R.C.

 External Contact
Name

AGSO Journal of Australian Geology and Geophysics

Issue identification

17:2:51-62

Point of contact
Role Organisation / Individual Name Details
Custodian

United Geophysical Corporation

 External Contact
Point of contact

LeyCooper, Y.

 MEG Internal Contact
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Topic category
  • Geoscientific information
Maintenance and update frequency
Unknown

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • GA Publication

  • Journal

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice
OnLine resource

Journal article (pdf)

Journal article (pdf)

Distribution format

  • pdf

Resource lineage

Statement

Unknown

Hierarchy level
Non geographic dataset
Other

GA Publication

Description

Source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/fae9173a-71b1-71e4-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

LeyCooper, Y.

 MEG Internal Contact

Type of resource

Resource scope
Document
Name

AGSO BMR Journal

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/81492

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-71b1-71e4-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:07:06
Date info (Creation)
2014-06-03T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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