Track Structure Model for Radial Distributions of Electron Spectra and Event Spectra from High-Energy Ions

Details Track Structure Model for Radial Distributions of Electron Spectra and Event Spectra from High-Energy Ions Track Structure Model for Radial Distributions of Electron Spectra and Event Spectra from High-Energy Ions

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998stin...9837094c&link_type=abstract

Technical Report, NASA/TP-1998-208707

Physics

Radial Distribution, Radiation Transport, Photons, Linear Energy Transfer (Let), Frequency Distribution, Electrons, Electron Spectroscopy, Dosage, Atmospheric Radiation, Spectra, Protons, Proportional Counters, Ions, Energy Spectra, Electron Energy, Amount

Scientific paper

An analytic method is described for evaluating the average radial electron spectrum and the radial and total frequency-event spectrum for high-energy ions. For high-energy ions, indirect events make important contributions to frequency-event spectra. The method used for evaluating indirect events is to fold the radial electron spectrum with measured frequency-event spectrum for photons or electrons. The contribution from direct events is treated using a spatially restricted linear energy transfer (LET). We find that high-energy heavy ions have a significantly reduced frequency-averaged final energy (yF) compared to LET, while relativistic protons have a significantly increased yF and dose-averaged lineal energy (yD) for typical site sizes used in tissue equivalent proportional counters. Such differences represent important factors in evaluating event spectra with laboratory beams, in space- flight, or in atmospheric radiation studies and in validation of radiation transport codes. The inadequacy of LET as descriptor because of deviations in values of physical quantities, such as track width, secondary electron spectrum, and yD for ions of identical LET is also discussed.

Affiliated with

Also associated with

No associations

Rating

Track Structure Model for Radial Distributions of Electron Spectra and Event Spectra from High-Energy Ions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Track Structure Model for Radial Distributions of Electron Spectra and Event Spectra from High-Energy Ions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Track Structure Model for Radial Distributions of Electron Spectra and Event Spectra from High-Energy Ions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1055440