Demonstrating the 6 K measurement capability of an improved scanning quantum cryogenic atom microscope

The Scanning Quantum Cryogenic Atom Microscope (SQCRAMscope) is a quantum sensor that utilizes an elongated Bose-Einstein condensate to characterize an electromagnetic potential landscape near a sample.  Here, we expand the previously reported capabilities of the microscope, improving its ease of use and lowering the base sample temperature from 35 K to 5.7 K.  These upgrades include streamlined methods for BEC generation and sample loading, a closed-cycle pulse tube cryostat, and a radiation shield enclosing the sample mount.  We present this improvement with cooldown data alongside sample vibration measurements, to demonstrate that the previously measured imaging resolution and field sensitivity of the microscope can be maintained in this new regime.