A light-emitting diode package structure includes a LED chip, an interconnecting substrate, a first conductive lead and a second conductive lead. A processing unit processes an article, such as a wafer. The verification server passes an indicator between the verification device and gaming device via the gaming server and in this fashion, verification can be made that the gaming device is in communications with the gaming server. In the first position, light beams from the first and second IO ports transmit through the prism back to the second and first IO ports, respectively; in the second position, light beams from the first and second IO ports are reflected back to the first and second IO ports by the mirror. Related apparatus and methods are also described. The accelerator system includes a dc high-voltage, high-current power supply, an evacuated ion accelerating tube, a proton ion source, a dipole analyzing magnet and a vacuum pump located in the high-voltage terminal.