Abstract: A high pressure discharge lamp has a sealing portion that is made of glass and a sealing metal piece. In a method of manufacturing the high pressure discharge lamp, the sealing metal piece is irradiated with laser beam whose pulse width is 1×10?9 seconds or less, so as to carry out a surface treatment of the sealing metal piece. The sealing metal piece may have a groove that is 120 to 600 nm in depth and 450 to 1,200 nm in width.

Abstract: A laser-driven particle beam irradiation apparatus includes: a particle beam generator irradiating a target with pulsed laser light to emit a laser-driven particle ray; a beam converging unit forming a transportation path which guides the emitted laser-driven particle ray to an object and spatially converging the laser-driven particle ray; an energy selector selecting an energy and an energy width of the laser-driven particle ray; an irradiation port causing the laser-driven particle ray to scan the object to adjust an irradiation position in the object; and an irradiation controller controlling operation of the particle beam generator, the beam converging unit, the energy selector and the irradiation port.

Abstract: Provided are an ion beam control apparatus and a control method for controlling an ion beam energy expansion level and an ion beam size in a radial direction. An ion beam control apparatus Sa is provided with an ion beam generating unit 2, and an ion beam control unit 1a in which a generated ion beam (IB) is input and controlled to be output with the prescribed level of energy expansion and the prescribed diameter in the radial direction. In the ion beam control unit 1a, phase rotation by a radio frequency electric field that increases existing probability with the prescribed level of energy is at least used.

Abstract: A high pressure discharge lamp has a sealing portion that is made of glass and a sealing metal piece. In a method of manufacturing the high pressure discharge lamp, the sealing metal piece is irradiated with laser beam whose pulse width is 1×10?9 seconds or less, so as to carry out a surface treatment of the sealing metal piece. The sealing metal piece may have a groove that is 120 to 600 nm in depth and 450 to 1,200 nm in width.

Abstract: In order to attain an object to realize an ion beam capable of (i) immediately determining energy of the ion beam to be generated, and (ii) measuring an ion beam in real time while carrying out laser irradiation, an ion beam detector (1) of the present invention includes a light conversion section (7) transmitting X-rays mixed in with ions (3) and converting the ions (3) to light; a light detection section (9) detecting, as an electric signal, the light converted from the ions (3) by the light converting section (7); a time-of-flight measurement section (10) measuring a time of flight for the ions (3) to reach the light conversion section (7); an electron removal section (5) removing electrons mixed in with the ions (3) and a light shielding section (6) shielding light mixed in with the ions (3), each of which is provided in an upstream of the light conversion section from which the ion beam comes to the light conversion section; and a curved section (8) between the light conversion section (7) and the light

Abstract: Provided are an ion beam control apparatus and a control method for controlling an ion beam energy expansion level and an ion beam size in a radial direction. An ion beam control apparatus Sa is provided with an ion beam generating unit 2, and an ion beam control unit 1a in which a generated ion beam (IB) is input and controlled to be output with the prescribed level of energy expansion and the prescribed diameter in the radial direction. In the ion beam control unit 1a, phase rotation by a radio frequency electric field that increases existing probability with the prescribed level of energy is at least used.

Abstract: A laser-driven particle beam irradiation apparatus includes: a particle beam generator irradiating a target with pulsed laser light to emit a laser-driven particle ray; a beam converging unit forming a transportation path which guides the emitted laser-driven particle ray to an object and spatially converging the laser-driven particle ray; an energy selector selecting an energy and an energy width of the laser-driven particle ray; an irradiation port causing the laser-driven particle ray to scan the object to adjust an irradiation position in the object; and an irradiation controller controlling operation of the particle beam generator, the beam converging unit, the energy selector and the irradiation port.

Abstract: In the improved method for increasing the contrast of a high-intensity laser, signal light outputted from a laser oscillator, a preamplifier or the like is amplified by OPCPA which is excited by pump light having a short pulse width comparable to that of the signal light, thereby producing an extremely high contrast.

Abstract: In the improved method for increasing the contrast of a high-intensity laser, signal light outputted from a laser oscillator, a preamplifier or the like is amplified by OPCPA which is excited by pump light having a short pulse width comparable to that of the signal light, thereby producing an extremely high contrast.