Hello,
We currently have the need to support radioactivity timeseries that are measured with the gAPI unit.
What is gAPI?
• API (American Petroleum Institute) units are commonly used in the oil industry to indicate natural radioactivity in geological formations, particularly using gamma ray logs.
• gAPI stands for giga API units (1 gAPI = 10⁹ API units), but it’s often a confusion — in most cases, gAPI simply means “gamma API units”, not giga.
• In well logging, 1 API unit is a relative measure, not an absolute unit of radioactivity like Bq.
This makes gAPI very difficult to integrate to the CDF unit catalog (https://github.com/cognitedata/units-catalog). Since we cannot have an absolute conversion to an SI unit. This conversion depends on calibration curve or lab measurement linking the gamma ray count in API units to disintegrations per second (Bq).
My question is: is there a way to support this in the unit catalog? Support of units without conversion to a SI unit?
It is very important to us that every timeseries is linked to unit in the CDF catalog and have a unit_external_id even though we will not use conversion for this particular unit.
Happy to discuss.
Thank you,
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