At present, the effective length of CT ionization chamber commonly used in China is 100mm. When the nominal line is wider than 60mm, the measurement accuracy decreases, and multiple step measurements are required, which is troublesome to operate. In this paper, the energy response of the extended CT ionization chamber with different materials is studied. The MCNP5 program is simulated and verified by the standard radiation field energy response experiment. The experimental results show that the energy response of the collector electrode with 1mm Al core coated with 0.1mm graphite is ±2% in the energy range of CT (100-150) kV, which has good application value.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.