Analytical Suite Metadata

GSC field crew – in-situ ground gamma ray spectrometry analysis



GSC field crew – in-situ ground gamma ray spectrometry analysis

General Methodology:

An Exploranium GR-320 portable gamma ray spectrometer was used to measure gamma radiation.  The spectrometer has 512 channels and uses a single 21 cubic inch sogium iodide detector.

Prior to the first spectrometer measurement, the site is quickly scanned with an Exploranium GR-110 scintillometer, in order to avoid localized anomalies such as radioactive boulders.  Usually, five measurements are taken at each site, and the average value is then calculated.

Uranium and thorium concentrations are determined indirectly from their daughter products (214Bi and 208Tl respectively).

Instrument:

Sample material: gas

Sample weight: unstated


Analytical Technique:

Hierarchical classification

Technique >> Radiochemical methods >> Natural radiation >> Gamma radiation

Children

None


Analytical Decomposition:

Hierarchical classification

Decomposition >> None

Children

None


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  2459     K_in_situ 
2  2460     eU_in_situ 
3  2461     eTh_in_situ 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  266     GSC field measurement – ground gamma ray spectrometry
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