Abstract: The invention relates to a blow torch (6) for a cutting process, in particular a steam cutting process, comprising a control device (3), a liquid supply system, in particular a container (5) for a liquid (8), and a power source (2), the blow torch (6) being connected via lines (9, 10) to the power source (2). The blow torch (6) is connected by a supply line (7) to the liquid supply system. At least one duct or flow passage for the liquid (8) having a predeterminable cross section and path is provided in the blow torch (6) and is designed to convert the liquid (8) into a gaseous state, in particular a gas (19).

Abstract: The invention concerns apparatus for detecting the position of incidence (2) of a beam (1) of charge carriers on a target (3) wherein X-rays (4) starting from the position of incidence (2) are detected by detector (7) connected to an analyzing circuit (9) An imaging system (5, 50; 10, 11, 12) is provided which can cover all the positions (P.sub.1 . . . P.sub.8) that the positions of incidence (2) can take up and projects them on the sensing surface of a position-sensitive detector (7), wherein the projected coordinates (x', y') are directly proportional to the coordinates (x, y) of the position of incidence (2). In addition, a filter (6) highly transparent to the X-ray radiation range emitted from the position of incidence (2) is arranged between the target surface (3) and the position-sensitive sensor (7). The position-sensitive detector (7) emits electric signals which depend from the coordinates (x, y) of the position of incidence (FIG. 1).