Akademik Veri Yönetim Sistemi
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, cilt.437, ss.20-26, 2018 (SCI-Expanded)
In this study it has been investigated the effect of gamma and neutron radiation on the electron momentum distribution (Compton profile) of the Multiwall Carbon Nanotube (MWCNT) using a Compton spectrometer with an annular Am-241 radioactive source. The samples were irradiated with 10 kGy (kGy) gamma rays, thermal and fast neutrons. The photons emitted from the Am-241 source were incident on the irradiated samples and the scattered photons from the samples were recorded using HPGe detector. Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) results are also given to show the changes at the atomic structure of the MWCNT. The results clearly show that the Compton profile of multi-walled carbon nanotubes has changed with gamma and neutron irradiation. These changes are attributed to the delocalization of the electrons in the sample (in real space) which is clearly seen in the increased height of Compton profile of MWCNT at low momentum range (localization in momentum space) during sample's irradiation.