The SpinQuest experiment at Fermilab uses a solid-state polarized ammonia target held at a
magnetic field of 5 T, immersed in liquid helium-4, which is held at approximately 1K by
the evaporation refrigerator. The refrigerator provides the required cooling power during the
dynamic nuclear polarization (DNP) process and the high intensity interaction with the 120 GeV
proton beam from the Fermilab main injector. The refrigerator was designed in compliance
with the American Society of Mechanical Engineers (ASME) to operate safely at Fermilab. The
high pumping capacity (17,000 $𝑚^3/ℎ$) roots stack provides the required pumping speed during
DNP production data taking and a custom-made radiation hard flow control valve regulates the
refrigerator temperature during the thermal equilibrium calibration measurements. The frequency
of the microwave generator, an Extended Interaction Oscillator (EIO), is automated to keep
the maximum polarization while the (Nuclear Magnetic Resonance) NMR system continuously
measures the polarization of the target material. In this talk, an overview of the SpinQuest polarized
target system will be presented as well as a brief report of recent commissioning activities and
target performance during the early production runs in 2024.