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进行了用HI-13串列加速器产生的33MeV和14MeV~7Be放射性离子束照射玉米种子的研究,~7Be在种皮的沉积份额分别为58％和94.5％,在胚体中的沉积份额分别为42％和5.5％。按运动离子射程公式计算,14MeV的~7Be离子束在种子中的射程只有30μm左右,不能直接穿过75～135μm厚的种皮。事实说明离子注入种子有更复杂的机制。试验还用36MeV剂量为1.6×10~(15)离子/cm~2的~7Li离子束照射玉米种子,剥皮前后也都探测到了
The irradiation of corn seed with 33MeV and 14MeV ~ 7Be radioactive ion beams generated by HI-13 tandem accelerator was carried out. The deposition share of ~ 7Be in seed coat was 58% and 94.5%, respectively. The deposition share in embryoid body was 42% and 5.5%. According to the formula of moving ion range, the range of 14MeV ~ 7Be ion beam in seed is only about 30μm, and can not directly pass through the seed layer of 75-135μm. The fact that ion implantation of seeds has a more complex mechanism. The experiment also used 36MeV doses of 1.6 × 10 ~ (15) ions / cm ~ 2 ~ 7Li ion beam irradiated corn seeds, both before and after peeling detected