Abstract: A radiation source apparatus includes a vessel, a laser source, a collector, a horizontal obscuration bar, and a reflective mirror. The vessel has an exit aperture. The laser source is configured to emit a laser beam to excite a target material to form a plasma. The collector is disposed in the vessel and configured to collect a radiation emitted by the plasma and to reflect the collected radiation to the exit aperture of the vessel. The horizontal obscuration bar extends from a sidewall of the vessel at least to a position between the laser source and the exit aperture of the vessel. The reflective mirror is in the vessel and connected to the horizontal obscuration bar.

Abstract: A rinsing apparatus including a housing fixed to the toilet bowl, a water input/output unit mounted within the housing, having a water inlet connected to a water source, a water outlet, a water pressure adjusting hole adjacent to the water inlet, a water pressure adjusting screw threaded into the water pressure adjusting hole and turned to regulate water flowrate passing from the water inlet to the water outlet, a control valve fastened to the water outlet of the water input/output unit to control the passage of the water outlet, a nozzle mount fixedly secured to the toilet seat at the bottom, and a nozzle mounted in the nozzle mount, connected to the water outlet pipe of the control valve, and controlled by the control valve to eject water for rinsing a part of the body of the user who sits on the toilet seat.