摘要:
A system for producing a charged particle beam from a photoionized cold atom beam. A vapor of neutral atoms is generated. From these atoms, an atom beam having axial and transverse velocity distributions controlled by the application of laser light is produced. The produced atom beam is spatially compressed along each transverse axis, thus reducing the cross-sectional area of the produced beam and reducing a velocity spread of the produced beam along directions transverse to the beam's direction of propagation. Laser light is directed onto at least a portion of the neutral atoms in the atom beam, thereby producing ions and electrons. An electric field is generated at the location of the produced ions and electrons, thereby producing a beam of ions traveling in a first direction and electrons traveling in substantially the opposite direction. A vacuum chamber contains the atom beam, the ion beam and the electron beam.
摘要:
An apparatus, method and products thereof provide an accelerated neutral beam derived from an accelerated gas cluster ion beam for processing materials.
摘要:
Provided is a coupling structure for airframe components that is capable of ensuring sufficient lightning protection capability. A conductive pattern part 40 made of a conductive material is formed around each fastener member 24 between wing surface panels 21A and 21B. The conductive pattern part 40 is formed, for example, around each of holes 21c and 21d on the plane on which the wing surface panel 21A and the wing surface panel 21B abut against each other. Then, the conductive pattern part 40 is pushed against both the wing surface panel 21A and the wing surface panel 21B by the fastening power of the fastener members 24, whereby electrical conduction between the wing surface panel 21A and the wing surface panel 21B can be achieved.
摘要:
The invention relates to an ECR ion generator (1) comprising a vacuum-tight chamber (2) of axial symmetry along a longitudinal axis (AA'), means (3, 4, 5, 6) for generating a magnetic field having a symmetry of revolution with respect to the axis (AA') and means for propagating a high-frequency wave. The chamber (2) has an ionization first stage (7) at one end of the chamber (2) having an ionization zone (10) in which ions are generated, the magnetic field being approximately parallel to the axis (AA') in the zone (10), and a second stage (8) for magnetically confining the ions generated that uses a first high-frequency wave coming from the propagation means. The magnetic field is approximately parallel to the axis (AA') between the zone (10) and the second stage (8) so that the ions generated in the zone (10) migrate towards the second stage (8), and the first and second stages (7, 8) contain the same DC plasma.
摘要:
A neutral particle generator is disclosed that includes a container which holds a material in at least a partial plasma state, for example a Deuterium plasma. In one form, a first cathode is positioned within the container and produces a first beam of neutral particles directed away from the first cathode. Optionally, a second cathode is also positioned within the container and produces a second beam of neutral particles directed away from the second cathode, and/or a target is also positioned within the container. In one form, the first cathode and the second cathode are linearly opposed so that the first beam interacts/collides with the second beam resulting in fusion reactions of at least some of the neutral particles, which thereby results in generation of emitted neutrons.
摘要:
Embodiments of the invention provide a beam generator to produce an atomic beam that travels across a patterned surface of a reticle. The beam may interact with particles to prevent the particles from contaminating the reticle.
摘要:
The present invention relates to a neutral particle beam processing apparatus. More specifically, the present invention relates to a neutral particle beam processing apparatus comprising a plasma discharging space inside which processing gases are converted to plasma ions through a plasma discharge, a heavy metal plate which converts the plasma ions into neutral particles through collisions, a plasma limiter which prevents plasma ions and electrons from passing through and allows the neutral particles produced by collisions of the plasma ions with the heavy metal plate to pass through, and a treating housing inside which a substrate to be treated is located, wherein the plasma discharging space is sandwiched between the heavy metal plate and the plasma limiter.
摘要:
An installation for doping stents with radio active and non radio active atoms, comprising an ECR ion source with an extraction device, a mass separation device and an irradiation chamber in which the stents are exposed to a selected partial ion beam. Microwaves are injected by means of a tubular piece which is concentric to the plasma chamber and which can be displaced axially. Gaseous additives to the plasma are selected in such a way that a partial beam with a sufficient proportion of radio active atomic or molecular ions can be produced. Stents which are irradiated according to this method in said installation are characterised by a reliably quantified degree of radio activity.