Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

A novel portal imaging device for advanced radiation therapy

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

7 Author(s)
Iacobaeus, C. ; Dept. of Med. Radiat. Phys., Karolinska Inst., Stockholm, Sweden ; Brahme, A. ; Danielsson, M. ; Fonte, P.
more authors

A new detector for portal imaging is under development, which could greatly improve the alignment of the radiation beam with respect to the tumor during radiation treatment. The detector is based on gaseous and solid converters combined with gas electron multipliers (GEMs) as an amplification structure. The detector will have a large area and will be operated in a very high-rate environment. A prototype has been built and extensively tested, both with high-rate X-rays as well, in a clinical environment at the Karolinska Hospital. High rates and alpha particles could cause discharges in the GEM and discharge propagation from GEM to GEM and to the readout electronics. Since reliability is one of the main requirements for the portal imaging device, we performed systematic studies to find a safe-operating range of the device, free from typical high-rate problems, such as discharges

Published in:

Nuclear Science, IEEE Transactions on  (Volume:48 ,  Issue: 4 )