Login   You are in: tecnopolo


The regional network


logo piattaforma innovate

logo piattaforma mech

logo piattaforma create

logo piattaforma greentech

logo piattaforma agrifood

logo piattaforma health

 

BIBLIOGRAPHY



>List all the bibliography
Monitoring techniques for Cl2 and CO2 de-absorbed from irradiated graphite
Authors A. Ubaldini, B. Ferrucci, A. Strafella, C. Telloli, A. Rizzo  Year 2019
Pubblication type Poster International Conference with referee
Abstract Chlorine is present in nuclear grade graphite as a result of the purification processes during which it remains trapped within the graphite structures. Prior to irradiation, chlorine is present at natural isotopic abundance levels (as Cl-35). During the irradiation, part of it forms Cl-36, in proportion to the cumulative neutron flux generated in the core of the reactor. The graphite microstructure is characterized by open porosity (OP - pore structures connected to the surface of the graphite) and closed porosity (CP - pore structures isolated from the graphite surface). CP can be transformed into OP by oxidation of graphite and chemical species contained in it can be released after a certain time. Cl-35 in the OP is released relatively quickly at operating temperature, therefore only a very small fraction of the chlorine located in the initially open porosity can be activated; on the contrary, the Cl-35 located in the initially CP, can potentially reside in the flux for a considerable period, and thus undergo greater activation. The length of residence in the flux, and hence the quantity of Cl-36 released from the graphite, will therefore depend critically upon the rate at which CP is converted in OP. Experimental data suggests that closed porosity is accessed faster in the earlier stages of radiolytic oxidation than in the later.
Reference CHANCE Topical Day
21-22 March 2019
Mechelen (Belgium)
WEB Reference http://academy.sckcen.be/en/Events/Topical-Day--CHANCE-20190321-20190321-782051ff-ece7-e811-80cb-ecf4bbc6e827
Repository reference DI138-015
Research unit TRAC
LastUpdate 04/03/2021
Related research topics
Code Topic Description
4 TECNICHE ISOTOPICHE

impact factor Falso




   


 

POR FESR

logo rete alta tecnologia emilia romagna

Fondo per lo sviluppo e la coesione
Il Laboratorio ha realizzato progetti finanziati dai Fondi europei della Regione Emilia-Romagna e dal Fondo per lo sviluppo e la coesione
Attrattività Ricerca Territorio - Emilia-Romagna
Sitemap
Termini di uso
Politica sulla Privacy
Accessibilita'

Share this page with

LinkedIN share Facebook share share
Dichiarazione di accessibilità 31fdd320-863d-11ef-95db-6df961374190