用于核医学的高效位置灵敏伽马射线探测器的设计

Design of an efficient position sensitive gamma ray detector for nuclear medicine.

作者信息

Rogers J G, Saylor D P, Harrop R, Yao X G, Leitao C V, Pate B D

出版信息

Phys Med Biol. 1986 Oct;31(10):1061-90. doi: 10.1088/0031-9155/31/10/001.

Abstract

The shortcomings of conventional scintillation cameras are analysed theoretically with a view towards improving performance at gamma ray energies above 140 keV. A camera design is proposed which incorporates several new features to obtain good spatial resolution from thicker crystals of sodium iodide. Computer simulations show that in addition to having good efficiency and spatial resolution, the new design allows parallax error correction and (possibly) Compton scattering correction at gamma energies up to 511 keV.

摘要

从提高140keV以上伽马射线能量下的性能角度出发，对传统闪烁相机的缺点进行了理论分析。提出了一种相机设计方案，该方案包含几个新特性，以便从较厚的碘化钠晶体中获得良好的空间分辨率。计算机模拟表明，新设计除了具有良好的效率和空间分辨率外，还能在高达511keV的伽马能量下进行视差误差校正以及（可能的）康普顿散射校正。