Characterization of an 8×8 Al microwave kinetic inductance detector array

Chinese Antarctic Kunlun Observatory is planning to construct a 5-m THz telescope (DATE5) on Dome A, Antarctica. Therefore, a THz superconducting imaging array (TeSIA) is being proposed for DATE5 to serve its scientific goals. We test an 8×8 prototype Al microwave kinetic inductance detector (MKID) array for TeSIA in a
³
He/
⁴
He dilution refrigerator. The resonance frequencies are designed evenly distributed in 4-5.575 GHz band with 25 MHz intervals. The responses of the MKIDs with different bath temperatures are measured and the Q factors are calculated. Detailed measurement results and analysis will be discussed.