Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7362842 | Cylindrical neutron generator A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating ta... | 04/22/2008 |
| 7342988 | Neutron tubes A neutron tube or generator is based on a RF driven plasma ion source having a quartz or other chamber surrounded by an external RF antenna. A deuterium or mixed deuterium/tritium (or even just a tritium) plasma is generated in the chamber and D or D/T (or T) ions a... | 03/11/2008 |
| 7321198 | Ion source with uniformity of radial distribution of ion beam intensity An ion source, comprising: a discharge chamber, in which is formed an opening; a coil, provided outside said discharge chamber, for generating plasma within said discharge chamber; an extraction electrode, which extracts ions in said plasma generated in said dischar... | 01/22/2008 |
| 7139349 | Spherical neutron generator A spherical neutron generator is formed with a small spherical target and a spherical shell RF-driven plasma ion source surrounding the target. A deuterium (or deuterium and tritium) ion plasma is produced by RF excitation in the plasma ion source using an RF antenn... | 11/21/2006 |
| 7064336 | Adaptable radiation monitoring system and method A portable radioactive-material detection system capable of detecting radioactive sources moving at high speeds. The system has at least one radiation detector capable of detecting gamma-radiation and coupled to an MCA capable of collecting spectral data in very sma... | 06/20/2006 |
| 6922455 | Gas-target neutron generation and applications Described herein are integrated systems for generating neutrons to perform a variety of tasks including: on-line analysis of bulk material and industrial process control (as shown in FIG. 1), security interrogation (as shown in FIG. 2), soil and enviro... | 07/26/2005 |
| 6907097 | Cylindrical neutron generator A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating ta... | 06/14/2005 |
| 6680993 | Method of producing Actinium-225 and daughters A method of producing an isotope comprising directing electrons at a converting material coated with a coating material, the coating material having an atomic number of n, whereby interaction of the electrons with the converting material produces photons,... | 01/20/2004 |
| 6477217 | Target for neutron scattering installation Flow of mercury from a liquid-heavy-metal inflow port toward an inner forward end of a container body is rectified by a plurality of incoming-passage guide vanes in a liquid-heavy-metal incoming passage. Flow of the mercury from the forward end of the con... | 11/05/2002 |
| 5103134 | Reconditionable particle-generating tube A device for reconditioning a neutron tube, comprising on the one hand invariant elements and on the other hand sensitive elements which are subject to wear and gaseous elements which are consumable and which are introduced by way of reservoirs. In accord... | 04/07/1992 |
| 4935194 | High-flux neutron generator comprising a long-life target A neutron generator comprising a target (16) which is struck by a hydrogen isotope ion beam and which is formed by a structure comprising a thin absorbing active layer (19) deposited on a carrier layer (18). In accordance with the invention, on the two ab... | 06/19/1990 |
| 4568509 | Ion beam device A nuclear fusion device comprising a condensed phase fuel element and accelerated ion beams which ionize and compress the fuel element and initiate nuclear fusion reactions. In one of the embodiment beams comprising electrons in addition to ions are emplo... | 02/04/1986 |
| 4487737 | Pulsed neutron generator control circuit A control and power supply circuit is illustrated in the preferred and illustrated embodiment for providing power to a pulsed neutron generator tube. The preferred and illustrated embodiment includes power supplies and control circuits for providing opera... | 12/11/1984 |
| 4428901 | Production and utilization of ion cluster acceleration by means of potential well An intense high current, high voltage pulsed beam comprising bursts of electrons of about 40 nanoseconds duration each, having a beam radius of about 1 mm is projected through an anode consisting of a hollow tube with much smaller diameter than that of th... | 01/31/1984 |
| 4325005 | Ion accelerator and a method for increasing its efficiency The ion accelerator comprises an arrangement consisting of getter pumps and gas storages. This makes for a possibility of gas pressure and gas phase composition control in the device after its being unsoldered from the vacuum installation. The device is e... | 04/13/1982 |
| 4311912 | Neutron accelerator tube having improved target section A neutron accelerator tube having a replenisher section for supplying accelerator gas, in ionization section adjacent the replenisher section adapted to receive the accelerator gas, and a target section adjacent the ionization section. The target section ... | 01/19/1982 |
| 4288696 | Well logging neutron generator control system A pulsed neutron well logging system using a sealed off neutron generator tube is provided with a neutron output control system. The control system monitors the target beam current and compares a function of this current with a reference voltage level to ... | 09/08/1981 |
| 3984694 | Pulse width regulator for a pulsed neutron source A pulsed neutron system includes an accelerator tube having a target, an ionization section, and a replenisher for supplying accelerator gas. The power supplied to the replenisher is controlled to maintain the ionization pulse time duration within the upp... | 10/05/1976 |
