THE immediate influence of the recent developments in nuclear physics upon the study of cancer is likely to be due to the provision of new and powerful tools for investigation and of new agents with therapeutic possibilities. It is more difficult to assess the significance of the studies of the mechanism of the biological action of radiations necessitated by the protection of large numbers of i...

A simple Positron Emission Tomography (PET) prototype has been constructed to fully characterize its basic working principles. The PET prototype was created by coupling plastic scintillator crystals to photomultipliers or PMT's which are placed at opposing positions to detect two gamma rays emitted from a radioactive source, of which is placed in the geometric center of the PET set-up. The prot...

The detection of radioactive materials has become a critical issue for environmental services, public health, and national security. This paper proposes a spatial statistical method to detect and localize a hidden radioactive source. Based on a detection system of multiple radiation detectors, the statistical model assumes that the counts of radiation particles received by those detectors are s...

After initial commissioning of the charge state breeder for radioactive ions at the TRIUMF/ISAC facility further tests on the performance of the system have been done., One of the major problems found was the high background of stable ions from the ECR source. The main source of those is the residual gas and sputtered material from the plasma chamber wall and from the surrounding electrodes. Al...