Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Biological Effects of Radiation

Biological Effects of Radiation

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 produce ions...

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

Radiological Investigation I: X-ray and CT

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...

You might also read

Related Articles

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

Sort by

Same author

Standing up the National Ignition Facility radiation protection program.

Health physics·2013

See all related articles

Search research articles

Related Experiment Video

Updated: May 11, 2026

Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level

Automated ⁹⁰Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level

Published on: June 6, 2018

Implementing an operational program for determining the radiological status of material and equipment.

¹Lawrence Livermore National Laboratory, Livermore, CA 94551-9900, USA. dillon10@llnl.gov

|May 1, 2013

Summary

The National Ignition Facility developed a protocol to release neutron-activated materials. This method verifies if contamination is indistinguishable from background radiation, ensuring environmental safety and regulatory compliance.

More Related Videos

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

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

Related Experiment Videos

Last Updated: May 11, 2026

Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level

Automated ⁹⁰Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level

Published on: June 6, 2018

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

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

Area of Science:

Nuclear Engineering
Radiation Protection
Environmental Science

Background:

The U.S. Department of Energy (DOE) Order 458.1 mandates approval for releasing volumetrically contaminated personal property.
A dose constraint of 10 µSv/y is set for clearing such items.
The National Ignition Facility (NIF) requires a robust protocol for material release.

Purpose of the Study:

To establish a protocol for evaluating and releasing volumetrically contaminated materials and equipment at NIF.
To ensure compliance with DOE Order 458.1 regarding radiation protection.
To provide a technical basis for distinguishing neutron-activated materials from background radiation.

Main Methods:

Utilizing process and historical knowledge to identify potentially impacted materials.
Employing field measurements to verify if materials are distinguishable from background radiation.
Ensuring measurement sensitivity exceeds American National Standards Institute (ANSI) N13.12-1999 unrestricted release criteria.

Main Results:

A protocol was implemented to assess and release materials potentially "volumetrically contaminated" by neutron activation.
Materials not distinguishable from background radiation are classified as non-impacted and released from radiological control.
The developed methodology confirms measurement sensitivity surpasses unrestricted release standards.

Conclusions:

The protocol provides a technical basis for releasing materials that are distinguishable from background but below unrestricted release thresholds.
Pending DOE approval, this protocol can streamline the release of specific materials and equipment.
The methodology ensures adherence to radiation protection standards for the public and environment.