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:
There is disclosed a method of generating non-ionizing radiation, non-ionizing 4He atoms, or a combination of both, the method comprising: contacting graphene materials with a source of deuterium; and aging the graphene materials in the source of deuterium for a time sufficient to generate non-ionizing radiation, non-ionizing 4He atoms. In one embodiment, graphene materials may comprise carbon nanotubes, such as nitrogen doped single walled or multi-walled carbon nanotubes. Unlike an alpha particle, the non-ionizing 4He atoms generated by the disclosed method are a low energy particles, such as one having an energy of less than 1 MeV, such as less than 100 keV. Other non-ionizing radiation that can be generated by the disclosed process include soft x-rays, phonons or energetic electrons within the carbon material, and visible light.
摘要:
Embodiments described herein provide for a method of launching atoms in an atom interferometer. The method includes determining a direction of the total effective acceleration force on the atoms, controlling a direction of launch of the atoms for measurement in the atom interferometer based on the direction of the total effective acceleration force, and obtaining measurements from the atoms.
摘要:
The invention concerns a guided coherent atom source (1) comprising means for generating neutral atoms in a gaseous state (2), means for cooling the atoms gas (3), means for generating a magnetic field (4), comprising an electro-magnetic micro-chip (6) deposited on a surface (18) of a substrate (14), and capable of condensing the atoms in a magnetic trap, means for generating an electro-magnetic RF field capable of extracting the condensed atoms, optical means (10) for emitting and directing an optical coherent beam (12) toward the condensed atoms able to guide the condensed atoms, characterized in that the optical means (10) and the electro-magnetic micro-chip (6) are integrated onto the same substrate (14). The invention also concerns an atomic interferometer using such a source.
摘要:
An apparatus for the generation of anionic and neutral particulate beams is described. The apparatus comprises a duct defined by walls having an inner surface capable of sustaining a temperature above an electron emission temperature of the surface, so as to negatively charge electrically neutral particles being passed through the duct when the surface is heated to the temperature; a heating element for heating the inner surface to the temperature; and an acceleration electrode for ion-optically controlling and manipulating the negatively charged particles into the anion beam. The apparatus may further comprise a protection electrode defining a protected region, which substantially prevent emitted electrons from escaping the protected region. Moreover, a system for analyzing substances ejected from a surface of a sample bombarded with an anion beam generated by the apparatus is described. The system further comprises a detector for detecting the substances once ejected of the surface. Further, a method of generating an anion beam is described.
摘要:
The invention relates to a method for cluster fragmentation comprising the production of at last one cluster containing one carrier substance and the fragmentation of the cluster into cluster fragments, whereby the cluster is charged with at least one coreactant before fragmentation and the coreactant is part of at least one cluster fragment after fragmentation. The invention also relates to a cluster radiation system for implementing the method and to applications of cluster fragmentation in the analysis and cleaning of surfaces, in the analysis of clusters and in the operation of ion engines.
摘要:
The present invention relates to a deuteron generating target having a construction for generating deuteron efficiently, and a deuteron generating target apparatus including the same. The deuteron generating target is constructed by providing an upper film mainly composed of a deuterated organic compound onto a base film mainly composed of a halogen-containing organic compound.
摘要:
Apparatus for producing a beam of clustered atoms comprises a nozzle (17) ejecting atomic clusters from a source (10, 11) in a gas stream. The nozzle (17) comprises a passage having an inwardly tapered inlet portion (17a) and an outwardly tapered outlet portion (17c) whereby turbulence in the region of the inlet and outlet of the nozzle is minimised.
摘要:
Die Erfindung bezieht sich auf eine Vorrichtung zur Erzeugung eines Strahls von Atomen oder Radikalen durch thermische Dissoziation eines Gases, mit einem Rohr (1), das an seinem einen Ende an eine Gasquelle (2) anschließbar ist und an seinem anderen Ende eine Gasaustrittsöffnung (3) aufweist, und einer Heizvorrichtung (4), um das Rohr (1) zu erwärmen, welche dadurch gekennzeichnet ist, daß die Heizvorrichtung (4) wenigstens einen Heizdraht (5) zur Erwärmung des Rohrs (1) durch Wärmestrahlung aufweist und der Heizdraht (5) das Rohr (1) im Bereich der Gasaustrittsöffnung (3) unter Herstellung eines elektrischen Kontakts berührt, im übrigen aber mit Abstand umgibt.
摘要:
A fast atomic beam (FAB) source is capable of generating fast atomic beams having characteristics of a high beam density, a precise directionality, and a wide range of controlled out put energy levels. The FAB source is comprised of a discharge tube, an inductively coupled plasma generator for generating gas plasma in the discharge tube from introduced gas therein, positive and negative electrodes for accelerating ions to control the beam for a variety of energy levels. The negative electrode has a beam control opening for generating a FAB, wherein directionability, neutralization factor, and other FAB characteristics are controlled.