原子质量是原子核的一个基本常数,包含在所有的核反应模型公式和运动方程中。同时,原子质量又给出反应粒子的结合能及反应能,决定了反应产物相空间的大小。近年来,许多研究领域都提出了对远离β稳定线的原子核精确原子质量的需要。此外,在核反应模型计算及核数据评价中,还需要与之相关的核形变及同位素丰度数据。为此,在收集、评价、推荐的基础上,编篡了原子质量和核基态形变数据文档,并将研制其检索程序。由此构建的原子 Atomic mass is a fundamental constant of the nucleus and is included in all the nuclear reaction model equations and equations of motion. At the same time, the atomic mass gives the binding energy of the reactive particles and the reaction energy, which determines the size of the reaction product phase space. In recent years, many fields of research have raised the need for accurate atomic mass of the nucleus far away from the beta stable line. In addition, nuclear deformation and isotopic abundance data are also needed in the calculation of nuclear reaction models and in the evaluation of nuclear data. To this end, based on the collection, evaluation and recommendation, we have compiled the atomic mass and nuclear ground state deformation data files and will develop their search procedures. The atoms thus constructed