Abstract: A treatment device includes a pulsed particles accelerator and a processor for controlling the latter to deliver a treatment plan by deposition at HDR of charged particles into a flash volume (Vht) by PBS. To shorten the time for depositing a target dose (Dti) into the cells spanned by the flash spots (Si) of the flash volume (Vht), the flash spots are combined into k sets of n flash spots (Si). After depositing a jth pulse dose (Dij) into the cells spanned by a ith flash spot (Si) the beam commutes from the ith flash spot (Si) to a next (i+1)th flash spot according to a flash scanning subsequence to deposit a jth dose into the cells spanned by each of the subsequent flash spots of the flash scanning subsequence, until returning to the ith flash spot to deposit a (j+1)th dose (Di(j+1)), and so on When all the cells spanned by all the flash spots of a set have received their corresponding target dose, the beam moves to a next set of combined flash spots and repeats the foregoing pulse deposition steps.

Abstract: The embodiments of the present disclosure relate to a method and system for controlling the extraction of ion beam pulses produced by a synchrocyclotron. The synchrocyclotron comprises electrodes configured to be placed in a magnetic field. An alternating voltage is applied between the electrodes, and the frequency of the alternating voltage is modulated in a cyclic manner. In other embodiments, the method further comprises the steps of starting an acceleration cycle of the synchrocyclotron, generating a reference signal when the modulated frequency reaches a predefined value, communicating the time, at which the reference signal is generated, to the beam control elements, assessing one or more status parameters of the one or more beam control elements, and cancelling or proceeding with the extraction of the beam pulse depending on the results of the assessment.

Abstract: The embodiments of the present disclosure relate to a method and system for controlling the extraction of ion beam pulses produced by a synchrocyclotron. The synchrocyclotron comprises electrodes configured to be placed in a magnetic field. An alternating voltage is applied between the electrodes, and the frequency of the alternating voltage is modulated in a cyclic manner. In other embodiments, the method further comprises the steps of starting an acceleration cycle of the synchrocyclotron, generating a reference signal when the modulated frequency reaches a predefined value, communicating the time, at which the reference signal is generated, to the beam control elements, assessing one or more status parameters of the one or more beam control elements, and cancelling or proceeding with the extraction of the beam pulse depending on the results of the assessment.

Abstract: In a laser microprobe interface for a mass spectrometer, such as a Fourier transform mass spectrometer, the focusing optical system (1) and the viewing optical system (4) are arranged in the cell holder (5) of the spectrometer itself. The focusing optical system (1) can be moved by an adjustment means (2) so as to make allowance for the variation of the focal distance with the wavelength of the primary ionization laser beam (3) and is arranged at the center of the viewing optical system (4) of the achromatic inverted cassegrain type. The latter optical system provides perfect definition of the image and a high magnification together with a good depth of field and good laser focusing. The arrangement of the focusing optical system (1) at the center of the viewing optical system (4) also allows the focusing optical system (1) to be interchanged with other ionization means.

Abstract: The present invention relates to an apparatus for translatory manipulation of an element, such as an axle.Apparatus characterized in that it comprises a displacement device (2) for each direction in space in which the axle (1) is to be manipulated, each displacement device (2) comprising two blades (3) prestressed in opposition, constituted by an alloy which is pseudoelastic or has shape memory, disposed on opposite sides of heating and/or cooling means (4) giving rise to a thermal gradient between the two blades (3) and thus their martensitic transformation causing their deformation.