EXPOSURE OF Gd2O3-ALANINE AND Gd2O3-AMMONIUM TARTRATE ESR DOSIMETERS TO THERMAL NEUTRONS: EXPERIMENTS AND MONTE CARLO SIMULATIONS

Studio integrato per la caratterizzazione dei laterizi

DATA ANALYSIS OF ESR SIGNALS OF DOSIMETERS FOR NEUTRON-GAMMA MIXED FIELD WITH GADOLINIUM AS AN ADDITIVE

RISPOSTA ESR DI COMPOSTI ORGANICI PER LA DOSIMETRIA DI NEUTRONI TERMICI

DOPED ALANINE ESR DOSIMETERS FOR MEASUREMENTS OF THERMAL NEUTRON FLUENCE IN A MIXED RADIATION FIELD

Confronto XRF-LIBS per la caratterizzazione chimico-fisica di laterizi provenienti dal teatro greco romano di Taormina

Utilizzo del gadolinio in composti organici per la misura di fluenza di neutroni termici

ESR RESPONSE TO 60 CO-RAYS OF AMMONIUM TARTRATE PELLETS USING GD2O3 AS ADDITIVE.

This work presents experimental results regarding a new ammonium tartrate blend for ESR dosimetry, with a higher sensitivity and a lower lowest detectable dose (LDD) to 60 Co -rays than the recently used pure ammonium tartrate. The blend composed by ammonium tartrate and gadolinium-oxide (Gd2 O3 ) shows a greater sensitivity (∼2 times) and a smaller LDD than ammonium tartrate. The increased sensitivity was mainly attributed to the great atomic number (Z = 64) of gadolinium, that increases the effective atomic number of the blend; the interaction probability with photons and consequently the radical yield is therefore enhanced. Moreover ammonium tartrate with Gd2 O3 has a linear dose respons…

IMPROVEMENT OF SENSITIVITY IN ESR GAMMA-DOSIMETRY BY GADOLINIUM ADDICTION