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Related Concept Videos

Instrument Calibration01:12

Instrument Calibration

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Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
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Radioactivity and Nuclear Equations03:18

Radioactivity and Nuclear Equations

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Nuclear chemistry is the study of reactions that involve changes in nuclear structure. The nucleus of an atom is composed of protons and, except for hydrogen, neutrons. The number of protons in the nucleus is called the atomic number (Z) of the element, and the sum of the number of protons and the number of neutrons is the mass number (A). Atoms with the same atomic number but different mass numbers are isotopes of the same element.
A nuclide of an element has a specific number of protons and...
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Calibration Curves: Linear Least Squares01:20

Calibration Curves: Linear Least Squares

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A calibration curve is a plot of the instrument's response against a series of known concentrations of a substance. This curve is used to set the instrument response levels, using the substance and its concentrations as standards. Alternatively, or additionally, an equation is fitted to the calibration curve plot and subsequently used to calculate the unknown concentrations of other samples reliably.
For data that follow a straight line, the standard method for fitting is the linear...
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Calibration Curves: Correlation Coefficient01:10

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In a linear calibration curve, there is a value called the calibration coefficient, denoted by 'r,' which measures the strength and the direction of association between two variables. The correlation coefficient value ranges from −1 to +1. A value of +1 indicates a perfect positive linear correlation, −1 denotes a perfect negative correlation, and 0 implies no correlation between the two variables. A positive correlation value establishes that as one variable increases, the...
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Radioactive Decay and Radiometric Dating02:48

Radioactive Decay and Radiometric Dating

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Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.
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Uncertainty in Measurement: Reading Instruments02:46

Uncertainty in Measurement: Reading Instruments

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Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
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Towards a machine-interpretable calibration certificate for radioactivity.

Henrike Fleischhack1, Matthias O Stein1, Stefan Röttger1

  • 1Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|September 13, 2025
PubMed
Summary

Digital calibration certificates, using XML-DCC, are presented for radioactivity measurements. These machine-readable certificates enhance data integration and reduce errors in calibration workflows.

Keywords:
Digital calibration certificateDigitalisation

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Area of Science:

  • Metrology
  • Radiochemistry
  • Information Science

Background:

  • Digitalization is transforming calibration, research, and manufacturing by automating data flow.
  • Traditional paper or PDF calibration certificates hinder seamless integration into digital workflows.
  • Machine-interpretable calibration certificates are needed for efficient data exchange and reduced transcription errors.

Purpose of the Study:

  • To present digital, machine-interpretable calibration certificates for radioactivity measurements.
  • To implement the XML-DCC (Digital Calibration Certificate in eXtensible Markup Language) schema for radioactivity data.
  • To demonstrate the harmonization and use cases of digital calibration certificates.

Main Methods:

  • Development and implementation of digital calibration certificates using the XML-DCC schema.
  • Representation of calibration item descriptions, measurement methods, nuclides, and activity measurements in a machine-interpretable format.
  • Utilizing a digital representation of the International System of Units (SI) for data.

Main Results:

  • Digital calibration certificates for radioactivity, activity concentration, and activity ratios were created.
  • The certificates enable machine-interpretable representation of measurement data, including nuclides and activity values.
  • A framework for national and international harmonization of digital calibration information was discussed.

Conclusions:

  • Digital calibration certificates, based on XML-DCC, offer a standardized, machine-readable format for radioactivity measurements.
  • These certificates facilitate seamless integration into digital workflows, improving efficiency and accuracy.
  • Harmonization and diverse use cases, including key comparisons, highlight the potential of digital calibration certificates.