Particle Transport Simulation for Spaceborne, NaI Gamma-Ray Spectrometers
Abstract
Radioactivity induced in detectors by protons and secondary neutrons limits the sensitivity of spaceborne gamma ray spectrometers. Three dimensional Monte Carlo transport codes have been employed to simulate particle transport of cosmic rays and inner belt protons in various representations of the Gamma Ray Observatory Spacecraft and the Oriented Scintillation Spectrometer Experiment. Results are used to accurately quantify the contributions to the radioactive background, assess shielding options and examine the effect of detector and spacecraft orientation in anisotropic trapped proton fluxes. Space radiation, Gamma ray detectors, Radioactivity, Radiation transport, Sodium iodide, Great Britain.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1988
- Accession Number
- ADA205150
Entities
People
- A. J. Sims
- C. Comber
- C. S. Dyer
- N. D. Hammond
- P. R. Truscott
Organizations
- Royal Aircraft Establishment