稳定区右下核素分布的三角形系列与边界

Triangles and Boundary of Nuclei Distribution on the Lower-Right Part of Stable Region

在坐标单位为氘氚结团的核素图稳定区的右下部,核素分布存在一个由3列8偶偶核素包围的边长为7核素的三角形.这3列核素是坐标S轴、坐标差K22与S-2H=4,每一列与内部的7核素三角形可组成3个边长为8核素的三角形.再延长3外围列就形成一个3个顶点坐标(4,0),(22,0),(40,18)是放射核素的三角形.这是一个边长为10坐标的大三角形,区内共有稳定偶偶核素28+24种,底边坐标S轴与右边坐标差K22是稳定区的下界与右边界.以原点(0,0),(22,0),(44,22)三点联线构成稳定区的右下外围.

In the lower part of stable region of nucleus chart with coordinates unite of deuteron and triton, there is a triangle which is with a side of seven nuclei and is surrounded hy three rows of eight nuclei. These rows are of S axis coordinate, differences K22 and S - 2H = 4. Three triangles were constituted by every row with inner seven nuclei triangles, which are of eight nuelei side. A big triangle with ten coordinates length side is found after three lines are extended. The three vertexes are radioactive nuclei （4,0）, （22, 0）, （40, 18） where have（28 ＋ 24） kinds of stable even even nuclei. It is illustrated that S axis coordinate and difference K22 are lower limit and rigbt limit of stable region. The limits keep in touch with the origin wi re among the lhree points coordinares （0,0）, （2.2,0） and （44,22.）.