Abstract: A method for cleaving thin rods of glass or quartz with a rod cleaving blade (27) and body (28) carrying the blade, is provided. The body (28) is of material varying in length through application of electric and/or magnetic fields. Driving force (31, 33) achieves relatively steady movement of the blade (27) towards a desired cleaving point and relatively steady small-amplitude vibratory component of movement towards and away from the cleaving point superimposed to the relatively steady movement, by influencing the body (28) electrically and/or magnetically. The blade is driven to vibrate with a frequency below 1 kHz during cleaving operation.

Abstract: A volume coil for a magnetic resonance (MR) tomography apparatus has a number of array coils or coil parts arranged on at least one coil carrier. The coil carrier annularly encloses or the coil carriers annularly encloses or enclose a cross-sectional area that can be varied by modifying the position of the coil carriers or parts thereof relative to one another.

Abstract: In a method and apparatus for detection improvement of a weakly-sensitive atomic nucleus type in MR spectroscopy data acquisition using polarization transfer for a weakly-sensitive atomic nucleus type (A) with involvement of an MR-active, strongly-sensitive atomic nucleus type (X), all RF pulses are radiated sequentially, i.e. with defined time interval relative to one another, such that at no point in time of the sequence are different RF pulses radiated simultaneously or overlapping, and the sequence of the RF pulses causes a polarization transfer of the two involved atomic nucleus types (A), (X).

Abstract: In a method for switching a localized saturation pulse in magnetic resonance spectroscopy or magnetic resonance imaging, magnetic field gradients are switched during the saturation pulse, with the steps of establishing the examination region, establishing the position of the saturation pulse relative to the examination region, determining the spectral position of the signal to be saturated, and selecting the magnetic field gradients dependent on the position of the saturation pulse relative to the examination region and dependent on the spectral position of the signal to be saturated.

Abstract: An apparatus for cleaving thin rods of glass or quartz comprises a rod cleaving blade (27) and a body (28) carrying the blade. The body is of a material varying its length through application of electric and/or magnetic fields therein. Driving means (31, 33) are adapted to achieve a relatively steady movement of the blade towards a desired cleaving point and a relatively small-amplitude vibratory component of movement towards and away from the cleaving point superimposed to the relatively steady movement by influencing said body electrically and/or magnetically. A driving means is adapted to make the blade vibrate with a frequency below 1 kHz during the cleaving operation.

Abstract: An arrangement for clamping thin rods of glass or quartz having a diameter below 1 mm in two mutually-spaced clamping locations for holding a said rod extended between the two clamping locations. The arrangement also comprises first clamping means arranged to clamp the rod in a first clamping location. The first clamping means has a first clamping member (22) with a clamp face (23) of substantially V-groove type for receiving the rod in the groove (24). The first clamping member is movably arranged with respect to a framework (45) of the apparatus for clamping a rod.

Abstract: In a hybrid CSI procedure for a magnetic resonance device, for a predeterminable volume of interest of the hybrid CSI procedure, the magnetic resonance device automatically defines an increased volume that exceeds the volume of interest such that all magnetic resonance signal-emitting substances of interest contained in the volume of interest are excited in order to create the magnetic resonance signals to be evaluated spectroscopically, and a saturation volume directly adjoining the volume of interest is automatically defined and saturated before the excitation by the magnetic resonance device such that no unwanted magnetic resonance signals are created from outside the volume of interest.