Related Experiment Video
Updated: Feb 16, 2026
12:10
Stable Isotopic Profiling of Intermediary Metabolic Flux in Developing and Adult Stage Caenorhabditis elegans
Published on: February 27, 2011
14.0K
Development of an externally controllable sealed isotope generator
Toru Sasaki1, Katsumi Aoki2, Ryosuke Yamashita1
1Department of Medical Engineering and Technology, Kitasato University School of Allied of Health Sciences, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0373, Japan.
Summary
A new sealed isotope generator offers a safe and reusable radioactive source for radiation education. This innovative design minimizes contamination and radioactive waste, promoting wider educational use.
Area of Science:
- Nuclear Science and Engineering
- Radiochemistry
- Radiation Education
Background:
- Traditional isotope generators pose risks of radioactive contamination and waste.
- Radiation education requires safe and accessible radioactive sources.
Purpose of the Study:
- To develop an externally controllable sealed isotope generator for radiation education.
- To evaluate the performance of column and solvent extraction-based generators.
Main Methods:
- Utilized column (Germanium-68/Gallium-68 and Cesium-137/Barium-137m) and solvent extraction (Germanium-68/Gallium-68) isotope generators.
- Tested generators as radioactive sources for repeated milking.
Main Results:
- Achieved high milking efficiencies for both generator types.
- Observed low breakthrough of parent isotopes after multiple uses.
- Demonstrated the potential for safe, repeated use without significant contamination.
Conclusions:
- The sealed isotope generator presents a novel concept for safe, reusable radioactive sources.
- This technology can significantly reduce radioactive waste and contamination in educational settings.
- Promotes increased accessibility and safety in radiation education activities.
Related Concept Videos
01:12Isotopes
65.1K
Elements have a set number of protons that determines their atomic number (Z). For example, all atoms with eight protons are oxygen; however, the number of neutrons can vary for atoms of the same element. 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 called isotopes. Elements can have multiple isotopes, for example, carbon-12, carbon-13, and carbon-14.
An element's atomic mass, or weight,...
An element's atomic mass, or weight,...
65.1K
02:31Elements: Chemical Symbols and Isotopes
127.9K
A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
127.9K
01:21Generator Voltage Control
690
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand, use...
690
01:11Work Done on a System by External Force
3.0K
The work done by an external force on a particle changes its kinetic energy. However, internal forces must also be considered for a system of interacting particles. The potential energy formulation helps formulate the effect of internal forces. The net work done by an external force can be written in terms of the total change of mechanical energy, which includes both kinetic and potential energies.
In the presence of a non-conservative opposing force, like friction, some part of the work done...
In the presence of a non-conservative opposing force, like friction, some part of the work done...
3.0K
01:28Isotopes and Radioisotopes
13.2K
In the early 1900s, English chemist Frederick Soddy realized that an element could have atoms with different masses that were chemically indistinguishable. These different types are called isotopes — atoms of the same element that differ in mass. Isotopes differ in mass because they have different numbers of neutrons but are chemically identical because they have the same number of protons. Soddy was awarded the Nobel Prize in Chemistry in 1921 for this discovery.
An isotope containing...
An isotope containing...
13.2K
01:13Mass Spectrometry: Isotope Effect
4.4K
Most elements exist in nature as a mixture of isotopes. The isotopes differ in weight due to their respective number of neutrons. The molecular weight of a molecule is different depending on the specific isotope of its elements involved. As a result, the mass spectrum of the molecule exhibits peaks from the same fragment at multiple positions. The positions of these mass signals depend on the mass differences between isotopes. Furthermore, the intensity of these signals is dependent on the...
4.4K