Zimmerman R E
Med Instrum. 1979 May-Jun;13(3):161-4.
The growth of nuclear medicine has paralleled the development and acceptance of gamma cameras, which are stationary instruments that produce an image of an isotope distribution. The most successful gamma camera is based on a large, single crystal of the scintillator sodium iodide coupled to an array of photomultiplier tubes and electronic networks to determine the location of a gamma ray. Current cameras are capable of spatial resolution of 4.0 mm or better. Other types of gamma cameras have been developed, including the multi-crystal camera and a limited number of instruments using gas detectors and semiconductor detectors. The scintillation type of gamma camera will continue to be the dominant camera for the next 5 to 10 years, and will continue to gradually improve. Most significant improvements will result from application of digital electronics to position circuits.
核医学的发展与γ相机的发展和应用同步，γ相机是一种固定仪器，可生成同位素分布图像。最成功的γ相机基于一块大的碘化钠闪烁晶体，该晶体与一系列光电倍增管和电子网络相连，以确定γ射线的位置。目前的相机空间分辨率可达4.0毫米或更高。还开发了其他类型的γ相机，包括多晶体相机以及数量有限的使用气体探测器和半导体探测器的仪器。在未来5到10年，闪烁型γ相机仍将是主流相机，并将继续逐步改进。最显著的改进将来自数字电子技术在定位电路中的应用。
