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Neutron production from polyethylene and common spacecraft materials.
R H Maurer1, D R Roth, J D Kinnison
1Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USA. richard.maurer@jhuapl.edu
IEEE Transactions on Nuclear Science
|May 30, 2002
Summary
Neutron production was measured using neutron beams and iron nuclei impacting simulated tissue and spacecraft shielding. These experiments provide crucial data for radiation protection in various environments.
Area of Science:
- Nuclear physics
- Radiation shielding research
Background:
- Understanding neutron production is critical for assessing radiation hazards.
- Polyethylene is commonly used as a tissue-simulating material in radiation studies.
- Spacecraft shielding effectiveness against high-energy particles requires experimental validation.
Purpose of the Study:
- To experimentally measure neutron yields from neutron-polyethylene interactions.
- To quantify neutron production resulting from high-energy iron nuclei impacting shielding materials.
Main Methods:
- Neutron beams were directed at polyethylene blocks at the Los Alamos National Laboratory Neutron Science Center.
- 1 GeV/amu iron nuclei were collided with spacecraft shielding materials at the Brookhaven National Laboratory AGS.
Main Results:
- Experimental data on neutron production yields were obtained for both simulated tissue and spacecraft shielding scenarios.
- Measurements provide a basis for validating radiation transport models.
Conclusions:
- The experimental data are essential for improving radiation safety protocols.
- Findings contribute to the design of effective shielding for astronauts and personnel exposed to radiation.