SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Secondary exposure for 73 and 200 MeV proton therapy


Congress title :IM 2005 - European Workshop on Individual Monitoring of Ionising Radiation 
Congress location :Vienne
Congress date :11/04/2005
Journal title : Radiation Protection Dosimetry Vol 125 issue 1-4 Pages : 349-354

Document type > *Congrès/colloque

Keywords >

Research Unit > IRSN/DRPH/SDE/LDRI

Authors > DELACROIX Sabine, PROUST J., TROMPIER François, VABRE I.

Publication Date > 01/07/2007

Summary

Following modifications on the beam line at the Orsay Protontherapy Center, dose measurements were performed in order to make a dose map in the treatment rooms and in the delimited radiation-controlled area around beam line. Measurements were performed using tissue-equivalent proportional counters and rem-counters. Analysis of TEPC single event measurements showed that high LET components (>10 keV.µm-1) represent 90 to 99% of total dose equivalent in the treatment rooms and 50 to 90% in the controlled area and quality factors range, respectively between 2 and 15. A fast neutron component was identified in the treatment rooms, where dose equivalent rate varied between few µSv.h-1 to some dozen of mSv.h-1. In high-energy radiation field rem-counters underestimated TEPC values for neutron component. The variation between instruments response according to the location is linked to energetic spectrum variations and instrument characteristics.

Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok