The key technologies of a new semi-automatic chemiluminescence immunoassay analyzer based on the photomultiplier tube

In this paper, we present a new semi-automatic chemiluminescence immunoassay analyzer, which is based on photons counter consists by the photomultiplier tube. The photons count efficiency is very high, which makes the test result be more sensitive and steady. A calibration circuit was presented in this paper, which was used to check the veracity of the photons counting. Significantly, this paper presents two unique compensation modules-measuring chamber and double spherical-convex lens optical system, which are used to improve the efficiency of photons counting.