A method of processing a circuit board including providing a circuit board having disposed thereon a conductive pattern, the pattern comprising a trace terminating at a terminal and depositing conductive material on the terminal and trace to form a land extending away from the terminal on the trace past a projection line. Radiation detectors that use the scintillators are also described, as are related methods for detecting high-energy radiation and method of producing an activated halide-perovskite based scintillator crystal. During the first stage, the cavitation fluid is continuously circulated through the cavitation chamber, reservoir and the circulatory system while the fluid within the chamber is cavitated. The voltage divider is referenced to IO power supplies Vddq and Vssq, with Vref being generated at a node intervening between the adjustable resistances of the voltage divider. Thus, the motor can be securely float mounted to a part around the wheel of the vehicle and the buffer mechanism 10 can be easily assembled.