由德、美两国科学家组成的一个研究小组4月7日说,他们成功地将核磁共振探测装置的尺寸缩小到手提箱大小,为这一装置的应用开辟了更广泛的前景。核磁共振装置的原理是,在外加的均匀磁场中,某种特定的原子核,只吸收某一特定频率射频场提供的能量,这样就形成了一个核磁共振信号,根 A team of scientists from Germany and the United States said on April 7 that they had succeeded in downsizing the NMR detector to the size of the suitcase and opened up a broader perspective for the application of this device. The principle of a nuclear magnetic resonance device is that in a uniform magnetic field applied, a specific atomic nucleus absorbs only the energy provided by the radio frequency field of a particular frequency, thus forming a nuclear magnetic resonance signal