  The Transition Edge Sensor is extremely sensitive to the change of
temperature, combined with the high-Z metal of a certain thickness, it can
realize the high energy resolution measurement of particles such as X-rays.
X-rays with energies below 10 keV have very weak penetrating ability, so only a
few microns thick of gold or bismuth can obtain quantum efficiency higher than
70\%. Therefore, the entire structure of the TES X-ray detector in this energy
range can be realized in the microfabrication process. However, for X-rays or
gamma rays from 10 keV to 200 keV, sub-millimeter absorber layers are required,
which cannot be realized by microfabrication process. This paper first briefly
introduces a set of TES X-ray detectors and their auxiliary systems built by
ShanghaiTech University, then focus on the introduction of the TES $\gamma$-ray
detector, with absorber based on an sub-millimeter lead-tin alloy sphere. The
detector has a quantum efficiency above 70\% near 100 keV, and an energy
resolution of about<EMAIL_ADDRESS>