From the projection of 6 -dimensional phase space on its 2 -dimensional subspaces, the relationships between the 2 -dimensional beam phase space ellipse and the measured beam emittance are deduced.

• 研究了束流传输理论沿用的束流相空间与实测束流发射度椭圆之间的对应关系,推导了束流相空间参数与束流椭圆对应关系的表达式,为束流传输理论与束流测量实验之间的相互验证提供了直接依据。