A new and more sensitive gamma‐ray camera for visualizing sources of radioactivity is
described. It consists of a lead shield with a pinhole aperture, a scintillating crystal within the …

The design and use of parallel-channel collimators with the s cintillatio!'.. camera are described.
Equations for calculating the optimum hole diameter, length,. and septal thickness are …

… inches travel in soft tissue before being scatteredo Therefore, -y-ray scattering in soft
tissue produces a di~fuse 2- to 3-inch-wide halo of dots around the active parts of the subject. …

[en] A short description is given of earlier forms of the gamma-ray camera. The principle of
operation of the scintillation camera is reviewed. Here the locations of scintillations occurring …

… use a variant of the well counter invented by Hal O. Anger in the early 1950s. if you obtain or
… If you do or see a single photon emission computed tomography study, Hal Anger showed …

… I said I would certainly like to find out about it, and he introduced me to Hal O. Anger. …
Hal Anger created the foundation for sophisticated imaging systems in use today. …

The use of a positron scintillation camera in the localization of brain tumors after administration
of Ga/sup 68/ is dethan with other methods of brain tumor localization and the pictures …

Photoelectric, Compton, and photopeak efficiencies have been calculated at several gamma‐ray
energies for large flat sodium iodide crystals in which the thickness ranges from ⅛−2 in. …

Radioisotope cameras are relatively new instruments for imaging the distribution of γ-ray or
positron-emitting isotopes in vivo. They produce pictures similar to those made by medical …

Development of the positron camera has made it possible to rapidly obtain pictures of the
distribution of radioactive fluorine 18 in the living animal or human being. The distribution of F …