The development of MWPC-based systems for imaging X-rays, gamma rays and charged particles in applications in medicine, materials science and biochemistry Part II. Applications in medicine, biology, low energy and X-ray physics

The development is described of several complete MWPC based imaging systems for applications in medicine (a positron camera), industry (a second positron camera), materials science (two 2-d X-ray diffraction systems) and biochemistry (an autoradiography system for 2-d immunoelectrophoresis using a tritium label).A moderately detailed description of two of the system is given and some special developments in the areas of fast modular electronics for the delay line readout technique and fast imaging data taking are described in more detail. The state of rapid expansion of this area of application of MWPC technology and its relationship to the microprocessor revolution are discussed.