美国劳伦斯·伯克利研究所最近研究出一种能够得到活细胞高分辨率显微镜照片的新技术。这一技术利用氖或氩的高能离子束把试样形态雕刻在云母片上,被称为重离子显微镜复制技术。重离子在显微镜上的应用在二十年前就曾引起注意。从理论上讲,显微镜的析像能力与所用放射线(光、电子等)的波长成比例,质量大的粒子波长短,其分辨率高。但是,重离子的重点连结比较困难,因而至今未用于显微镜。重离子显微镜复制技 The Lawrence Berkeley Institute recently developed a new technology that gives high-resolution microscopy of living cells. This technique uses high-energy ion beams of neon or argon to carve the specimen morphology on a mica plate, known as heavy ion microscopy. The application of heavy ions to microscopes attracted attention two decades ago. In theory, the resolution of a microscope is proportional to the wavelength of the radiation (light, electrons, etc.) used, and the massier particles have shorter wavelengths and higher resolution. However, heavy ions are more difficultly linked and have not been used in microscopy so far. Heavy ion microscopy replication technology