self-shielding

Others had proposed a photochemical effect called self-shielding, which this team has previously ruled out.

To their surprise, the experimental results showed that self-shielding could not resolve the oxygen-isotope puzzle.

Self-shielding means that the absorbed dose will be higher in the tissues facing the source than deeper in the body.

The leading contender, McKeegan said, may be a process called "isotopic self-shielding."

The laser would operate in pulsed mode to avoid self-shielding of the target by the ablated plasma.

As to how this enrichment of nitrogen-15 could have happened, Marty as well suggests some type of self-shielding as a possible mechanism.

NASA uses computerized anatomical geometry models to estimate the body self-shielding at the hippocampus.

The system has a high level of self-shielding, and the magnet is passive with the electronics all contained in the RF/gradient coil, which also serves as the head frame.

For organ dose calculations, NASA uses the model of Billings et al. to represent the self-shielding of the human body in a water-equivalent mass approximation.

Liquid xenon is useful for this type of experiment due to its high density which makes dark matter interaction more likely and permits a quiet detector due to self-shielding.

Necessary corrections are made for background scattering, multiple scattering, multiphonon scattering, absorption and self-shielding, and for the spatial inhomogeneity of the incident beam.

The reference depth of 1 cm essentially discounts alpha and beta radiation that are easily shielded by the skin, clothing, and bone surface, while taking minimal credit for any self-shielding from the more penetrating gamma rays.

It is due to self-shielding within the active layer of the source which will reduce the rate, or backscatter which will reflect particles off the backing plate of the active layer and will increase the rate.