低能离子注入小麦种子胚内的射程分布

采用110keV56Fe1+离子束垂直注入小麦种胚后,将小麦沿腹面的纵沟掰开,形成剖面,将剖面水平朝上粘贴在金属铜托上,用扫描电镜在剖面上从胚表面向纵深进行点分析,测定不同深度上由Fe元素激发出的特征X射线强度,由此得到了该种离子注入小麦胚内的最大射程约5μm,最可几射程为0.935μm.并对这种低能离子注入作物种子能诱发突变的机理进行了详细讨论. After embryo of wheat seed was right implanted by 110 keV 56Fe1+ions, the seed was broken into two parts by hand along its abdomen trench to form two cross sections. A half seed was pasted on a metal holder in keeping the cross section upwards horizontal. Spot analyses were carried out from embryo surface towards depth on the cross section under SEM and the intensity of characteristic X rays induced by electrons in Fe elements of the embryo was measured. From this, the maximum range of the ionsi...

Range Distribution of Low Energy Ions Implanted into Embryo of Wheat Seed

After embryo of wheat seed was right implanted by 110 keV 56Fe1+ions, the seed was broken into two parts by hand along its abdomen trench to form two cross sections. A half seed was pasted on a metal holder in keeping the cross section upwards horizontal. Spot analyses were carried out from embryo surface towards depth on the cross section under SEM and the intensity of characteristic X rays induced by electrons in Fe elements of the embryo was measured. From this, the maximum range of the ionsi...