An image-forming apparatus comprising at least a photoreceptor, a toner and an exposure device, wherein the photoreceptor has a photosensitive layer containing oxytitanium phthalocyanine having a distinct diffraction peak at a Bragg angle of 27. A collector receives an excess of controlled substance and stores the controlled substance so that unauthorized access is minimized. Various other apparatuses, systems, methods, etc. The filtering criteria can then be used to remove at least a portion of the surface waves from the seismic data. The device includes a wrist strap, a foot strap, and a thigh strap and an elastic tether of an adjustable length with the thigh strap configured to freely move along and about the elastic tether. The solid-state resistor is able to absorb the energy of a switch prefire, thereby limiting LTD cavity damage, yet has a sufficiently low RC charge time to allow the capacitor to be recharged without disrupting the operation of the pulsed power machine.