钴圃,一种使用钴放射源的“γ场”,是利用γ射线辐照一定范围内的活体植株的一个大型露天辐照场。由于γ场能长期辐照处理大量生长中的群体作物,为改变作物单一性状、改良品种、提高作物质量和数量提供实验条件,因而受到人们重视。早在1958年以前,美国BNL国家原子能试验中心,就建造了强度为3500居里的钴圃。此后,世界各国陆续有所建造,其规模由几+居里到几万居里,多数在1000到3000多居里的范围。我国70年代才开始出现用于辐照活体植株的γ场,到目前为止,建成的只有两座。虽然可采用围墙结构来进行环境保 Cobblebeds, a “gamma field” using cobalt sources, is a large open field radiation field that uses gamma rays to irradiate live plants in a range. Due to the γ field can be a long-term radiation treatment of large groups of growing crops, to change the single traits of crops, improve varieties, improve crop quality and quantity to provide experimental conditions, which have received great attention. As early as 1958, the United States BNL National Atomic Energy Test Center, the construction of a strength of 3,500 Curie cobalt nursery. Since then, all over the world have been built, its size from a few Curie to tens of thousands of Curie, mostly in the range of 1000 to 3000 Curie. China began to appear in the 1970s for the γ field irradiation of living plants, so far, built only two. Although the wall structure can be used for environmental protection