Abstract: The flowable material is directed through an irradiation zone in a thin layer and in a free fall. In one embodiment, the material is accelerated by one or more rollers prior to entry into the irradiation zone. The thin layer may be directed vertically or horizontally past one or more electron beams.

Abstract: A high temperature reactor comprises a tube which defines a reactor chamber; means for introducing the inert fluid into the reactor tube to provide a protective blanket for the inside surface of the tube; means for introducing reactants into the chamber, the reactants being confined centrally within the chamber by the protective blanket; and, means for generating high intensity radiant energy which is directed into the chamber to coincide with at least a portion of the path of the reactants.

Abstract: A device for measuring the wear of a radioactively marked machine component by sensing the presence of radioactive wear fragments in a lubricant has a flow-through chamber; an inlet for tangentially introducing the lubricant into the flow-through chamber; a radiation detector at least partially surrounded by the flow-through chamber; and an outlet for removing the lubricant from the flow-through chamber. The device further includes an outer hollow cylinder having a closed radial end face; an inner hollow cylinder having a closed radial end face and an outer diameter which is smaller than the inner diameter of the outer hollow cylinder. The inner hollow cylinder is supported coaxially within the outer hollow cylinder and the space between the two cylinders constitutes the flow-through chamber. The cylinders are supported in a substantially horizontal orientation.

Abstract: A method and apparatus is provided for monitoring metals concentration in fluid streams, and particularly for detecting rapid changes in metal concentrations in hydrocarbon streams.

Abstract: Activation of metallic powders by subjecting the powder to bombardment with electrons, ions, or molecules in an inert or reductive atmosphere. Improved densities result in sintering, as do improved catalytic actions. Simultaneous pulverization of coarse particles or bodies is also achieved where desired. The pretreatment is, in some instances, combined with loading the activated particles directly into a mold, for compaction or sintering, preferably with some additional activation, all done in an integrated system. The corpuscular particle bombardment of powder is advantageously effected by exposing the powder to a glow discharge produced between a pair of electrodes in a rarefied non-oxidizing atmosphere with the pressure of the atmosphere and the distance between the electrodes being such that their product in mm Hg times cm is in a range between 10.sup.-2 and 10.

Abstract: The present invention contemplates an arrangement for analyzing a plurality of components in a single specimen which comprises placing a diluted specimen into a storage cup which is part of a sample carrier system, containing storage and reaction cups, transferring aliquots of the diluted solutions of the sample from the storage to the reaction cups, presenting the rows of the reaction cups to a work station, sequentially, adding a reagent to each of the reaction cups and moving the reaction cups into a work field where beams of light passing through the various reaction cups can be scanned and the components contained in the reaction cups can be assayed by means of a single detector attached to a computer and print-out system.

Abstract: An ultraviolet lamp fixture for purifying the air within a room by means of passing the air over a plurality of hot cathode or other commercially available ultraviolet ray tubes. The tubes are mounted vertically within a decoratively covered, easily movable, pole-mounted housing having a motorized fan which moves air through an opening in the lower portion of the housing over the tubes for purification. The purified air stream is exhausted through the top portion of the housing and returned to the room. The interior of the housing has deflector vanes which function to create a turbulent air flow in the area of the tubes to insure that all of the air passing through the lamp fixture is purified by contacting the lamps. The lamp fixture is provided with means for filtering the circulating air. In an alternate embodiment, the air passes through a dehumidifier prior to passing by the tubes.

Abstract: A method of preparing a phosphor by injection of activator ions which become luminescent centers into crystals of a base material of the phosphor comprising the steps of generating ions of an activator, accelerating the activator ions by giving kinetic energy thereto, irradiating and injecting the accelerated activator ions into the base material, and agitating the base material.

Abstract: The container for holding the radiation sources is provided with a circular upper end and is closed by a common closure member. This member is, in turn, clamped onto the container by a holder via a bayonet connection. A clamping tool is also provided to remove the holder and permit replacement of the radiation sources. This tool also enables the holder and closure member to be pre-stressed before removing the holder and after re-assembly of the holder.

Abstract: A non-dispersive gas analyzing apparatus is described having a first chamber for containing a first gas, the density of which it is desired to determine. A source of radiant energy is provided for passing radiant energy through the first chamber. Modulation means are provided for modulating the radiant energy passing through the first chamber by modulating the volume of the chamber at the acoustic resonance frequency of the first gas and the chamber. Signal generating means including a second chamber for containing a gas which is heated by radiant energy emerging from the first chamber and a microphonic means responsive to the resulting pressurization in the second chamber is provided for generating a signal having a frequency and amplitude corresponding to the modulation of the radiant energy in the first chamber.

Abstract: The radioactivity of flowing water carrying very low concentrations of radioactive nuclides, is continuously monitored by passing the flowing water through a filter means to form an increasing collection of the nuclides, which collection is continuously monitored by a radioactivity detector producing pulses at an increasing rate dependent on the radioactivity of the collection. The pulses are fed to a pulse counter having an alarm activated by a pulse counter of adjustable count limit, and this limit is adjusted upward as the collection increases with time and in proportion to the time duration of the filtering and collecting. Therefore, the alarm is not activated if the concentration of the nuclides in the flowing water remains within the predetermined value; but if this value is exceeded, the alarm is activated.

Abstract: The radiation sources of the mobile irradiation apparatus are mounted in a carrier which is mounted at the top of the irradiation chamber. A screening cover is disposed over the carrier and has a load-unloading passage which can be moved into alignment with a selected radiation-source containing passage in the carrier for loading and unloading purposes. The cover is secured in a closed position relative to the carrier via screws so that the load-unload passage is sealed with a passage in the carrier. The carrier is also movable relative to the cover via unloosening of the screws so that the cover can be brought to an open position in which the cover can rotate to bring the load-unload passage into alignment with a different passage in the carrier.

Abstract: Method and apparatus for detection of mercury vapor present in environmental atmosphere for the purpose of detecting the degree of environmental mercury pollution that might be present. Environmental air is passed through a bed of fibrous material such as glass wool, the fibers of which are coated with a noble metal, such as silver, capable of extracting mercury vapor from the environmental air. The bed of fibrous material may be placed within a heating chamber where sufficient heat is applied to drive off the collected mercury and a clean and perhaps inert gasiform fluid, such as clean air, nitrogen, argon, etc. is passed through the heating chamber to serve as a carrier for mercury vapor that is driven off of the bed of fibrous material. The mercury vapor laden carrier gas is then cooled and the mercury vapor present in the gas is collected by passing the gas through a screen of nylon mesh that is also coated with the noble metal.

Abstract: A sample of hot fluid under pressure circulating in a main circuit is admitted into a cavity formed within a sampling unit. The temperature and pressure of the fluid within the cavity are brought to the same conditions as in the main circuit and the cavity is then isolated after thermal stabilization of the main circuit. The sampling unit is isolated, then cooled in order to reduce the pressure within the cavity. A supporting shield which normally covers a thin window formed in the bottom cavity wall is withdrawn by sliding and the fluid is analyzed across the window.