Transition Edge Sensor based on the Meissner Effect: SQUID and Resonator based measurements

We present the experimental results on the transition edge sensor based on the magnetic superconducting transition. The device prototype presented here consists of a thin microdeposited tin disc surrounded by a current carrying niobium ring. The superconducting tin disc is biased near its superconducting transition temperature. Any external energy from the particle or photon drives the tin disc to the normal phase and the magnetic state of the tin changes. This state transition of the core material of a single loop inductor is observed as a change in the inductance. By setting up the input coil of the SQUID in parallel to the detector, the change in the inductance can be measured as a change in the SQUID response. We present the scheme and measurements based on the SQUID and resonator on our prototype device.