Neutron Spectrometry

NEUTRON SPECTROMETRY AND DOSIMETRY WITH ANNs

Artificial Neural Networks technology has been applied to unfold the neutron spectra and to calculate the effective dose, the ambient equivalent dose, and the personal dose equivalent for Cf and AmBe neutron sources. A Bonner sphere spectrometry with a LiI(Eu) scintillator was utilized to measure the count rates of the spheres that were utilized as input in two artificial neural networks, one f...

High resolution neutron spectrometry with liquid scintillation detectors

Mars Airborne Neutron Spectrometry, Relict Ice and Recent Climate Change

Introduction: Gamma ray and neutron spectrometers in orbit around Mars have revolutionized our views of the present distribution of water ice and hydrogenous minerals [1,2]. In particular, hydrogen enhancements (expressed as water equivalent hydrogen, or WEH) at lowand mid-latitudes could potentially be related to comparatively recent climate change on Mars. The identification of glacial landfo...

Comparison of unfolding codes for neutron spectrometry with Bonner spheres.

This work compares the results of four different unfolding codes, MSANDB, MAXED, FRUIT and BONMA, which are based on different unfolding techniques. Additionally, Bayesian parameter estimation is also considered. All unfolding codes were supplied with the same set of input data acquired at the Environmental Research Station 'Schneefernerhaus' on the Zugspitze mountain, corresponding to continuo...

Neutron activation and high resolution gamma spectrometry--activation analysis.