Design of a space atomic clock with intracavity cooling

We present the design of a space atomic clock with intracavity cooling of atoms (SACIC). Combined with a 2D MOT, the rubidium atoms are cooled, state-selected, interrogated and then detected in a cylindrical microwave cavity. This design can largely reduce the dead time in the clock cycle. Furthermore, in benefit of its compact structure, we can lay out two same microwave cavity in the space clock to cancel the Dick effect with a zero dead time.