title: Neutron ESR dosimetry through ammonium tartrate with low Gd content.
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.
authors.affiliation: Dipartimento di Fisica e Chimica, Viale delle Scienze, Ed.18, Palermo I-90128, Italy Gruppo V, INFN, Sezione di Catania, Catania, Italy maurizio.marrale@unipa.it.
authors.forename: M
authors.initials: M
authors.lastname: Marrale
authors.affiliation: Dipartimento di Fisica e Chimica, Viale delle Scienze, Ed.18, Palermo I-90128, Italy Gruppo V, INFN, Sezione di Catania, Catania, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Brai
authors.affiliation: Dipartimento di Fisica e Chimica, Viale delle Scienze, Ed.18, Palermo I-90128, Italy Gruppo V, INFN, Sezione di Catania, Catania, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Longo
authors.affiliation: Dipartimento di Fisica e Chimica, Viale delle Scienze, Ed.18, Palermo I-90128, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Panzeca
authors.affiliation: Dipartimento di Fisica e Chimica, Viale delle Scienze, Ed.18, Palermo I-90128, Italy Gruppo V, INFN, Sezione di Catania, Catania, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Tranchina
authors.affiliation: Dipartimento Energia, Ingegneria dell'Informazione e Modelli Matematici, Viale delle Scienze, Ed.6, Palermo I-90128, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Tomarchio
authors.affiliation: Dipartimento Energia, Ingegneria dell'Informazione e Modelli Matematici, Viale delle Scienze, Ed.6, Palermo I-90128, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Parlato
authors.affiliation: Università di Pavia and INFN, Sezione di Pavia, Pavia.
authors.forename: A
authors.initials: A
authors.lastname: Buttafava
authors.affiliation: Università di Pavia and INFN, Sezione di Pavia, Pavia.
authors.forename: D
authors.initials: D
authors.lastname: Dondi
mesh_terms: D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*; D005682:Gadolinium / Q000737:chemistry / Q000528:radiation effects*; D009010:Monte Carlo Method; D009502:Neutrons; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*; D013644:Tartrates / Q000737:chemistry / Q000528:radiation effects*
chemical_list: D013644:Tartrates; C030581:gadolinium oxide; D005682:Gadolinium; C029768:tartaric acid