Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Instrument Calibration01:12

Instrument Calibration

1.3K
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...
1.3K
Glassware Calibration01:11

Glassware Calibration

2.0K
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
2.0K
Common Leveling Mistakes and Errors01:17

Common Leveling Mistakes and Errors

616
A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...
616
Systematic Error: Methodological and Sampling Errors01:15

Systematic Error: Methodological and Sampling Errors

11.4K
In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
Sampling errors originate from improper sampling methods or the wrong sample population. These errors can be minimized by refining the sampling strategy. Defective instruments or faulty calibrations are the sources of instrumental...
11.4K
Distance Corrections01:15

Distance Corrections

386
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
386
Quality Assurance01:19

Quality Assurance

3.9K
Quality assurance is the overarching term used to describe the activities employed to ensure the proper performance of a system. These activities can be classified into three categories: quality control, quality assessment, and internal corrective measures. Typically, these activities work cyclically: quality control is performed before and during the analysis, while quality assessment occurs during and after the investigation. Internal corrective measures are implemented based on the findings...
3.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Resuspension Consequence Assessment of the WIPP Release.

Health physics·2025
Same author

Radiation Hardness Assurance by Redundancy in Raspberry Pi Zero W Computation Metrics via Total Ionizing Dose 60Co Testing for Spacecraft Applications: Erratum.

Health physics·2025
Same author

Psychosomatic Bias in Low-dose Radiation Epidemiology: Assessing the Role of Radiophobia and Stress in Cancer Incidence.

Health physics·2025
Same author

Radiation Hardness Assurance by Redundancy in Raspberry Pi Zero W Computation Metrics via Total Ionizing Dose 60Co Testing for Spacecraft Applications.

Health physics·2025
Same author

EVALUATION OF EXISTING PUBLIC DOSE LIMITS APPLIED TO RECREATIONAL SPACEFLIGHT.

Radiation protection dosimetry·2023
Same author

Dose Estimation for Extravasation of 177Lu, 99mTc, and 18F.

Health physics·2023
Same journal

Assessment of Health Risks of Adults and Children Due to Consumption of Uranium in Groundwater from Chengalpattu District, Tamil Nadu, India.

Health physics·2026
Same journal

Radiation Protection Abstracts, Volume 46, Number 1.

Health physics·2026
Same journal

Specialized Radiological Assets for Navigable Two-dimensional and Three-dimensional Virtual and Augmented Reality.

Health physics·2026
Same journal

DoseBusters: A Fully Immersive Virtual Reality Game for Radiation Protection and Detection.

Health physics·2026
Same journal

Radioactivity in Bottled Drinking Water from Greater Dhaka City and Concomitant Ingestion Doses to Consumers.

Health physics·2026
Same journal

Assessment of Radiation Dose and Protection Practices in Neonatal Radiography in NICUs.

Health physics·2026
See all related articles

Related Experiment Video

Updated: Apr 8, 2026

The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals
11:02

The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals

Published on: September 7, 2015

23.4K

Operational Check Source Recalibration.

Robert B Hayes1

  • 1*Nuclear Waste Partnership, LLC, Waste Isolation Pilot Plant, MS 486-05, Carlsbad NM 88240.

Health Physics
|June 24, 2015
PubMed
Summary
This summary is machine-generated.

This study introduces a formal protocol for radioactive assay quality control. It uses a segregated source for trending and recalibrating operational sources, ensuring long-term activity accuracy.

More Related Videos

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements
10:22

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements

Published on: September 7, 2019

8.9K
Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.6K

Related Experiment Videos

Last Updated: Apr 8, 2026

The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals
11:02

The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals

Published on: September 7, 2015

23.4K
Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements
10:22

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements

Published on: September 7, 2019

8.9K
Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.6K

Area of Science:

  • Nuclear Science and Technology
  • Analytical Chemistry
  • Quality Assurance

Background:

  • Radioactive assay programs often use multiple sources, risking undetected long-term activity loss.
  • Common statistical methods may fail to detect subtle activity degradation over time.
  • Maintaining source accuracy is critical for reliable assay results.

Purpose of the Study:

  • To describe a formal protocol for ensuring the long-term accuracy of radioactive sources.
  • To provide a method for recalibrating operational sources using a segregated control source.
  • To enhance quality control trending in radioactive assay programs.

Main Methods:

  • A formal protocol involving a segregated source for quality control (QC) trending and recalibration.
  • Rigorous initial characterization of the segregated source.
  • Utilizing the characterized source to minimize error propagation during recalibration.
  • Monitoring the overall uncertainty budget.

Main Results:

  • The described method provides a robust approach to monitor and correct for long-term activity loss in radioactive sources.
  • It allows for reliable recalibration, even when common statistical criteria are insufficient.
  • Minimizes error propagation by leveraging rigorous initial characterization.

Conclusions:

  • The protocol offers a reliable solution for maintaining the accuracy of radioactive sources in assay programs.
  • It is particularly valuable for programs using multiple sources over extended periods.
  • The method enhances the overall quality and reliability of radioactive assay results.