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AbstractAbstract
No abstract available
Original Title
Patent
Primary Subject
Source
12 Feb 1974; 2 p; US PATENT DOCUMENT 3,791,134
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Patent
Primary Subject
Source
3 Sep 1974; 10 p; US PATENT DOCUMENT 3,833,428
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Appareil radio-isotopique de relais
Primary Subject
Source
28 Aug 1972; 16 p; FR PATENT DOCUMENT 2197496/D/; Available from INPI, Paris; Available from Institut National de la Propriete Industrielle, Paris (France).
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] A simulator device is described for insertion in a living body, having particular advantage for intracardiac use comprising a housing having a body formed for transvenous or transarterial insertion, electrode means at the outer surface of said body, means included in said housing defining a pulsing circuit electrically connected with said electrode means and means for activating said pulsing circuit embodied in said housing, said activating means being free of physical connection with an outside power source and dependent for its function on the living body in which it is inserted
Original Title
Patent; radioisotope-or biologically-powered pacers and stimulators
Primary Subject
Source
16 Mar 1976; 12 p; US PATENT DOCUMENT 3,943,936
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The invention relates to a miniaturized nuclear battery, consisting of several in series connected cells, wherein each cell contains a support which acts as positive pole and which supports on one side a β-emitter, above said emitter is a radiation resisting insulation layer which is covered by an absorption layer, above which is a collector layer, and wherein the in series connected calls are disposed in an airtight case
Original Title
Patent
Primary Subject
Source
20 Jan 1976; 6 p; US PATENT DOCUMENT 3,934,162
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Record Type
Journal Article
Journal
Med. Instrum. (Arlington); v. 7(3); p. 168-169
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Organization for Economic Co-Operation and Development, Paris (France); p. 643-646; 1972; Organization for Economic Co-Operation and Development; Paris, France; 2. International symposium on power from radioisotopes; Madrid, Spain; 29 May 1972
Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Bustard, T.; Goslee, D.; Barr, H.
Nuclear Battery Corp., Columbia, Md. (USA)1976
Nuclear Battery Corp., Columbia, Md. (USA)1976
AbstractAbstract
[en] This nuclear thermocurrent generator to feed a cardic pacemaker should have higher life expectancy and reliability than was previously achieved. For this purpose a gettering arrangement is connected to be heat conducting immediately adjacent to the nuclear fuel arrangement in an evacuated casing. The gettering arrangement can be operated to activate at as high a temperature as possible, from 1210C to preferably about 2040C, so that a high vacuum is maintained. The current generating thermal column works at a temperature difference of 55.60C. As the cold end of the column is connected to the outer casing, and should be held to a mean body temperature of 37.80C, the hot side of the thermal column may only be heated to 93.40C. The temperature jump from 1210 or 2040 to 93.40 is produced by a thermal resistance inserted between the hot side of the thermal column and the fuel arrangement. It may consist of a spacer made of stainless steel or by a gap, while in this first arrangement the nuclear heat generator is situated between the gettering arrangement and the thermal column, another arrangement shows the gettering arrangement enclosed in the fuel arrangement and thermal column. Here the heat flows in one direction only, the required temperature gradient is produced by suitable construction of the heat contacts between the 3 elements. Detailed constructional and manufacturing data are given for both models. Plutonium oxide is welded into a double casing as heat generator, in example the casing is made of nickel alloy. 1/10 gram of plutonium supplies a thermal energy of 50m watts, which produces a thermal current of 300 to 400 micro watts at 0.3V. (RW)
[de]
Dieser nukleare Thermostromerzeuger zur Speisung eines Herzschrittmachers soll hoehere Lebensdauer und Zuverlaessigkeit haben als sie bisher erreicht wurden. Hierzu wird eine Gettereinrichtung waermeleitend unmittelbar an die, in einem evakuierten Gehaeuse befindliche, Kernbrennstoffeinrichtung angeschlossen. Die Gettereinrichtung kann so zu ihrer Aktivierung auf einer moeglichst hohen Temperatur - 1210C bis, vorzugsweise, etwa 2040C - betrieben werden, sodass ein hohes Vakuum aufrecht erhalten bleibt. Die stromerzuegende Thermosaeule arbeitet mit einer Temperaturdifferenz von 55,60C. Da das kalte Ende der Saeule mit dem Aussengehaeuse in Verbindung steht und auf einer mittleren Koerpertemperatur von 37,80C gehalten werden soll, darf die heisse Seite der Thermosaeule nur auf 93,40C erhitzt werden. Der Temperatursprung von 1210 bzw. 2040 auf 93,40 wird durch einen zwischen heisse Seite der Thermosaeule und Brennstoffeinrichtung gelegten Waermewiderstand erzielt. Er kann durch einen Abstandhalter aus nichtrostendem Stahl oder durch einen Spalt gebildet werden. Waehrend bei dieser zuerst beschriebenen Anordnung der nukleare Waermeerzeuger zwischen Gettereinrichtung und Thermosaeule gelegt ist, zeigt eine andere Anordnung die Gettereinrichtung eingeschlossen von der Brennstoffeinrichtung und der Thermosaeule. Hier fliesst der Waermestrom nur in einer Richtung; die gewuenschte Temperaturstaffelung wird durch entsprechende Ausbildung der Waermekontakte zwischen den 3 Elementen hergestellt. Fuer beide Ausfuehrungen werden detaillierte konstruktive und fertigungstechnische Angaben gemacht. Als Waermeerzeuger wird Plutoniumoxyd in einer Doppelhuelse, beispielsweise aus einer Nickellegierung, dicht eingeschweisst. 1/10 Gramm Plutonium liefert etwa eine Waermeenergie von 50 mWatt, womit ein Thermostrom von 300 bis 400 μWatt bei 0,3 V erzeugt wird. (RW)Original Title
Mikrowatt-Thermostromerzeuger
Primary Subject
Source
30 Dec 1976; 9 p; DE PATENT DOCUMENT 2250869/B/; Also available from Dt. Patentamt, Muenchen (FRG); 3 figs.
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
15 Dec 1971; 254 p
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Shirokov, A.V.
CMEA member-states symposium on the radioisotope methods application in industry, including means of control and operation1979
CMEA member-states symposium on the radioisotope methods application in industry, including means of control and operation1979
AbstractAbstract
[en] In the paper miniature calibration sources of low direct current (CSC) equal to 10-5 - 10-10 A are discussed. It has been shown that the current sources, designed on the base of the method of direct collection of charged particles produced during α- and β-radionuclides decay, can be used as build-in current sources for calibration of low current meters (10-8 - 10-17 A) of different purpose, but they are especially effective in calibration of automatic electrometry and dosimetry instruments working in the hard radiation and climatic conditions. Comparisons are given of the CSC with well known low current sources, based on the ionization chamber use. The possibility is analysed of the direct application of a nuclear battery as the CSC. Technological difficulties are considered of fabrication of the CSC and requirements are listed to the radiation sources used in the CSC. Factors are listed stabilizing current of the CSC and determining their continious work resource. Possibility of principle is shown of creation the CSC with nominal current value from 10-14 to 10-10 A and with current fluctuation in the limits of 1% and years unstability of 1 - 3% and with the work resource of tenth of years. The results are given of testing of experimental CSC with nominal current value from 2x10-11 to 4x10-15 A
[ru]
Original Title
Kalibrovochnye istochniki malykh postoyannykh tokov na osnove yadernykh batarej s pryamym sborom zaryada
Primary Subject
Source
Sovet Ehkonomicheskoj Vzaimopomoshchi, Moscow (USSR). Postoyanniya Komissiya po Ispol'zovaniyu Atomnoj Ehnergii v Mirnykh Tselyakh; Akademie der Wissenschaften der DDR, Leipzig. Zentralinstitut fuer Isotopen- und Strahlenforschung; p. 203-209; 1979; p. 203-209; FEB ''Kongress und Verbendruck''; Oberlungvitz, German Democratic Republic; Radioisotope methods application in industry, including means of control and operation; Leipzig, German Democratic Republic; 26 - 29 Sep 1978; 7 refs., 1 table.
Record Type
Miscellaneous
Literature Type
Conference
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