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  • Title: Neutron ESR dosimetry through ammonium tartrate with low Gd content.
    Author: Marrale M, Brai M, Longo A, Panzeca S, Tranchina L, Tomarchio E, Parlato A, Buttafava A, Dondi D.
    Journal: Radiat Prot Dosimetry; 2014 Jun; 159(1-4):233-6. PubMed ID: 24795394.
    Abstract:
    This paper continues analyses on organic compounds for application in neutron dosimetry performed through electron spin resonance (ESR). Here, the authors present the results obtained by ESR measurements of a blend of ammonium tartrate dosemeters and gadolinium oxide (5 % by weight). The choice of low amount of Gd is due to the need of improving neutron sensitivity while not significantly influencing tissue equivalence. A study of the effect of gadolinium presence on tissue equivalence was carried out. The experiments show that the neutron sensitivity is enhanced by more than an order of magnitude even with this small additive content. Monte Carlo simulations on the increment of energy release due to gadolinium presence were carried, and the results were in good agreement with the experimental data.
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