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

Biological Effects of Radiation02:59

Biological Effects of Radiation

16.6K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
16.6K
Estimation of the Physical Quantities01:05

Estimation of the Physical Quantities

6.8K
On many occasions, physicists, other scientists, and engineers need to make estimates of a particular quantity. These are sometimes referred to as guesstimates, order-of-magnitude approximations, back-of-the-envelope calculations, or Fermi calculations. The physicist Enrico Fermi was famous for his ability to estimate various kinds of data with surprising precision. Estimating does not mean guessing a number or a formula at random. Instead, estimation means using prior experience and sound...
6.8K
Diamagnetic Shielding of Nuclei: Local Diamagnetic Current01:14

Diamagnetic Shielding of Nuclei: Local Diamagnetic Current

1.1K
An applied magnetic field causes the electrons present in the molecule to circulate, setting up a local diamagnetic current within the molecule. The local diamagnetic current arising from circulating sigma-bonding electrons induces a magnetic field, Blocal that opposes the applied magnetic field, B0. The effective magnetic field experienced by these nuclei is given by the difference between the applied and local magnetic fields in a phenomenon called local diamagnetic shielding. Essentially,...
1.1K
Nuclear Overhauser Enhancement (NOE)01:07

Nuclear Overhauser Enhancement (NOE)

1.1K
Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling.  This phenomenon, called the Nuclear Overhauser Enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring...
1.1K
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

1.5K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
1.5K
Atomic Radii and Effective Nuclear Charge03:08

Atomic Radii and Effective Nuclear Charge

58.9K
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
58.9K

You might also read

Related Articles

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

Sort by
Same author

A dosemeter for the public based on NaCl pellets for use in radiological or nuclear emergencies.

Journal of radiological protection : official journal of the Society for Radiological Protection·2026
Same author

Impact of Dyslipidemia, Cardiovascular Disease, Smoking, and Stroke Type by Brain Imaging on Pneumonia Risk in ICU Stroke Patients: A Cross-Sectional Observational Study.

La Clinica terapeutica·2025
Same author

Congenital tuberculosis following disseminated TB in pregnancy: a case report.

QJM : monthly journal of the Association of Physicians·2025
Same author

3D Measurement of Neutron-Induced Tracks Using Confocal Microscopy.

Sensors (Basel, Switzerland)·2025
Same author

How much do <sup>68</sup>Ga-, <sup>177</sup>Lu- and <sup>131</sup>I-based radiopharmaceuticals contribute to the global radiation exposure of nuclear medicine staff?

EJNMMI physics·2024
Same author

Corrigendum: Analysis of radon mitigation methods: 10-year review (2024<i>J. Radiol. Prot.</i>44 031503).

Journal of radiological protection : official journal of the Society for Radiological Protection·2024

Related Experiment Video

Updated: Nov 11, 2025

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
06:51

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities

Published on: February 20, 2021

5.3K

Virtual estimation of effective dose in neutron fields.

J Eakins1, M Abdelrahman2, L Hager1

  • 1Public Health England (PHE) CRCE, Didcot, Oxfordshire, United Kingdom.

Journal of Radiological Protection : Official Journal of the Society for Radiological Protection
|March 30, 2021
PubMed
Summary
This summary is machine-generated.

The PODIUM project offers real-time radiation dose assessments for workers using motion tracking and radiation field simulations. This method accurately measures low effective dose rates in mixed neutron-gamma fields, outperforming traditional detectors.

Keywords:
computational dosimetryeffective dosefield characterizationneutron exposurespersonal dosimetryreal-time dosimetryworkplace fields

More Related Videos

Irradiator Commissioning and Dosimetry for Assessment of LQ &#945; and &#946; Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
06:20

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

7.5K
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.1K

Related Experiment Videos

Last Updated: Nov 11, 2025

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities
06:51

Dosimetry for Cell Irradiation using Orthovoltage 40-300 kV X-Ray Facilities

Published on: February 20, 2021

5.3K
Irradiator Commissioning and Dosimetry for Assessment of LQ &#945; and &#946; Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
06:20

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition

Published on: March 11, 2021

7.5K
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.1K

Area of Science:

  • Radiation protection and dosimetry
  • Occupational health and safety
  • Computational physics and simulation

Background:

  • Accurate real-time assessment of occupational radiation exposure is crucial for worker safety.
  • Existing methods for monitoring exposure in mixed neutron-gamma fields have limitations, particularly at low dose rates.
  • The PODIUM project aims to develop an advanced system for personalized radiation monitoring.

Purpose of the Study:

  • To describe and validate an approach for real-time effective dose assessment in mixed neutron-gamma fields.
  • To detail the generation and application of an effective dose rate map using simulated workplace fields.
  • To present fluence-to-effective dose conversion coefficients for intercardinal angles.

Main Methods:

  • Development of a simulation framework combining worker motion tracking with radiation field modeling.
  • Generation of an effective dose rate map for mixed neutron-gamma fields.
  • Calculation of fluence-to-effective dose conversion coefficients at various angles.
  • Proof-of-concept demonstration using a simulated calibration laboratory field and comparison with survey instruments.

Main Results:

  • The approach demonstrated good agreement with survey instrument measurements in a simulated workplace field.
  • Simulated tracking successfully recorded a total effective dose of 1.25 μSv.
  • The system could account for dose rates as low as 0.5 nSv h⁻¹, significantly below the capability of physical neutron dosemeters.

Conclusions:

  • The PODIUM project's approach provides a viable method for real-time effective dose assessment in mixed neutron-gamma fields.
  • The system's sensitivity surpasses conventional neutron dosemeters, enabling monitoring at much lower dose rates.
  • This technology has the potential to significantly enhance radiation protection for occupationally exposed workers.