来源：蝌蚪五线谱 近日，美国纽约州发生了一起骇人听闻的事故：一名男子在陪同亲友进行核磁共振检查时，因佩戴金属 项链违规进入扫描室，被强大的磁场瞬间吸入机器，不幸身亡。这起悲剧再次将核磁共振这一现代医学 影像技术的"威力"以一种令人震惊的方式展现在公众面前。 核磁共振究竟是什么？为什么在核磁共振检查室内，一根小小的金属项链，竟然如此危险？用这样威力 强大的仪器，做核磁共振检查真的对身体没有伤害吗？我们今天就来解答这些疑问，而这一切的答案， 就藏在量子力学的基本概念——"自旋"里。 被检查的人体置于核磁共振仪器的磁场中 来源：dailymotion "核"与"磁"是怎么联系起来的？原来，在量子力学中，微观粒子，比如氢核，都有着一个奇妙的性质 ——自旋。看到这个名字，你的脑海里可能会浮现出一个小球，它就像地球一样在自转……但很可惜， 真实的粒子并不是一个简单的在旋转的小球，不过，自旋也不是完全与宏观的物理特性无关——它能够 给粒子带来磁性。 一个自旋不为0的粒子，就好像一个小指南针一样，具有自己的磁矩方向。 来源：clipartmax 一个粒子是否具有磁性，要看它的自旋大小。自旋等于0的那些原子核，比如水中最常见的 ...

Market Overview - The global market size for small animal imaging systems is projected to grow significantly, with a compound annual growth rate (CAGR) of 5.24% from 2020 to 2031 [3][12]. - The market size is expected to reach approximately $2.92 billion by 2030 [3]. Key Players - Major companies in the small animal imaging systems market include Revvity, Mediso Medical Imaging Systems, Agfa-Gevaert Group, Bruker, and Vieworks [5][13]. - Other notable players are LI-COR Biotech, Canon Medical Systems, and several Chinese companies such as Guangzhou Bojiangteng Biotechnology and Shanghai Kangtong Science and Education Equipment [13]. Product Types and Applications - The primary product types in this market include optical imaging, magnetic resonance imaging (MRI), ultrasound imaging, and X-ray imaging [13]. - Applications are mainly focused on hospitals, clinics, and laboratories [13]. Regional Insights - The market is expected to see significant growth in regions such as North America, Europe, China, Japan, and South Korea [10][11]. - The market size by region is projected to increase notably from 2020 to 2024 and further to 2031, indicating a robust demand across these areas [9][10].