摘要:
An RF fluorescent lamp, comprising a bulbous vitreous portion of the RF fluorescent lamp comprising a vitreous envelope filled with a working gas mixture, a power coupler to induce an alternating electric field within the vitreous envelope, an electronic ballast, and a mercury amalgam accommodating structure mounted within the lamp envelope and adapted to absorb power from the electric field to rapidly heat and vaporize an amalgam of mercury to rapidly illuminate the lamp envelope during a turn-on phase of the RF fluorescent lamp, wherein the structure is comprised of a substrate material coated with a mixture of indium and gold.
摘要:
An improved mercury-dispensing combination of materials is made up of a compound A including mercury and a second metal selected among titanium, zirconium and mixtures thereof and an alloy or an intermetallic compound B including copper and tin, said mercury-dispensing combination of materials further containing an amount of oxygen comprised between 0.03% and 0.48% with respect to the overall weight of the composition A+B. It is also possible to add a getter material C that includes metals such as titanium, zirconium, tantalum, niobium, vanadium and mixtures thereof or their alloys with other metals such as nickel, iron, aluminum.
摘要:
A composition of precursors for the release of vapors of alkali or alkali-earth metals is described. The composition has at least a compound of alkali or alkali-earth metal, at least a reducing agent and optionally an absorbing material, all in the form of powders, dispersed in a viscous matrix of hybrid organic-inorganic type. Dispensers for the release of these metals obtained through the composition and micro-electronic devices are also described.
摘要:
Compositions for mercury dispensing in lamps are disclosed, comprising a first component comprising mercury and at least a metal selected between titanium and zirconium and a second component consisting of aluminum or either a compound or an alloy including at least 40% by weight of aluminum, wherein the weight ratio between the first and the second component is equal to or lower than 9:1; optionally, the compositions may also include a third component, selected among metals or oxides capable of reacting exothermically with aluminum.
摘要:
In a method and apparatus for manufacturing a discharge tube wherein an envelope of the discharge tube is connected to an evacuating pipe system to be evacuated and charged with an inert gas and operating substances required through the evacuating pipe system, said system is provided with a closable opening and while the inert gas is being discharged through the opening a capsule carrying the operating substance is inserted into the pipe system through said opening to charge the operating substance into the envelope.
摘要:
Systems and methods for replacing coolant of an x-ray tube assembly having a closed cooling system include a service port that is operatively connected to a portion of the x-ray tube assembly and a vacuum assisted service kit that is operatively coupled to the service port. Used coolant is drained from the x-ray tube assembly, and thereafter a vacuum is drawn on the x-ray tube assembly via the service kit. Replacement coolant within a vacuum tank of the service kit is degassed under a vacuum. The degassed replacement coolant is provided into the cooling system from the vacuum tank, preferably by pushing under pressure with an inert gas to prevent the introduction of any air into the replacement coolant. The replacement coolant may be pressurized in the cooling system with the inert gas. Thereafter, the service kit may be disconnected from the service port.
摘要:
A mercury-dispensing combination suitable to release an amount of mercury higher than 60% during the activation step, even after partial oxidation, includes a mercury-dispensing intermetallic compound A with Hg and a second metal selected among Ti, Zr and mixtures thereof, as well as a promoting alloy or intermetallic compound B including Cu and a second metal selected among Sn, In or Ag or combinations thereof. There is also disclosed a mercury-dispensing device containing a combination of materials A and B, in addition to a process for introducing mercury into electron tubes consisting in the introduction of one of said devices inside the open tube and then heating thereof at a temperature between 550.degree. and 900.degree. C. after the tube sealing in order to get Hg free.
摘要:
A nitrogen-emitting composition which is adapted to be used with flash getter materials. Said composition comprising iron, germanium, and nitrogen. These materials are used within cathode ray tubes to produce a getter film which is deposited on the inner walls of the cathode ray tube.
摘要:
Electric lamps having a gas-filled lamp envelope according to the invention have a hydrogen getter consisting of a coherent mixture of 65-90% by weight of zirconium powder having a particle size of 100-1,000 .mu.m and 35-10% by weight of nickel powder.
摘要:
An oven device suitable for uniting in a gastight manner a plurality of tubular envelopes of densely sintered material having sealing members at both ends. The oven device can be made to cooperate with a vacuum system and a gas supply and comprises a U-shaped heating member of graphite where the envelopes, situated in a row between the limbs of the heating member are locally heated.