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AbstractAbstract
[en] After a review of the temporal properties of photomultipliers used in single photoelectron experiments, the main problems encountered in the applications to measurement of the shape of fast light pulses and to the determination of the statistical characteristics of light beams are examined
[fr]
Apres un rappel des proprietes temporelles des photomultiplicateurs utilises dans les conditions de photoelectrons uniques, on examine les principaux problemes qui se posent dans les applications a la reconstitution de la forme d'une impulsion lumineuse breve et a la determination des caracteristiques statistiques de faisceaux de lumiereOriginal Title
Fluctuations temporelles dans les photomultiplicateurs. Applications a la detection de signaux lumineux de faible flux
Source
One-day meeting for studying nuclear detectors; Grenoble, France; 17 Oct 1974
Record Type
Journal Article
Literature Type
Conference
Journal
Onde Electrique; v. 56(2); p. 54-58
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Morales, J.J.
S.R.C. Labs., Inc., Fairfeld, CT (USA)1977
S.R.C. Labs., Inc., Fairfeld, CT (USA)1977
AbstractAbstract
[en] The purpose of this invention is to provide a dynode for a type of photomultiplier that makes it possible to reduce the variations in the multiplication factor which previously could be attributed to the mechanical dip of the surfaces of the dynodes. The other aim concerns the design of a photomultiplier tube comprising at least two dynodes in succession and in which the tendency of the electrons emitted by the first dynode not to hit the second has been reduced. This type of dynode that can be manufactured at low cost can be used in standard photomultiplier tubes without their having to undergo significant modifications
[fr]
La presente invention a pour but de fournir une dynode pour un type de photomultiplicateur qui permet de diminuer les variations du facteur de multiplication lesquelles auparavant, pouvaient etre attribuees a l'inclinaison mecanique des surfaces des dynodes. L'autre but poursuivi concerne la realisation d'un tube photomultiplicateur comportant, au moins, deux dynodes successives et dans lequel la tendance des electrons emis par la premiere dynode a ne pas venir frapper la seconde a ete reduite. Ce type de dynode qui peut etre fabrique a bon marche est utilisable dans les tubes photomultiplicateurs courants sans modifier ceux-ci sensiblementOriginal Title
Perfectionnements aux dynodes des tubes photomultiplicateurs
Source
21 Apr 1977; 15 p; FR PATENT DOCUMENT 2349211/A/; Available from Institut National de la Propriete Industrielle, Paris (France); Priority claim: 22 Apr 1976, US.
Record Type
Patent
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AbstractAbstract
[en] Full text of publication follows: Double Chooz detectors have each 390 inner photomultiplier tubes (PMT) with 10 inch diameter. With Hamamatsu, we have succeeded to produce very low background glass. PMTs were tested in Japan and sent to MPIK (Germany) for new testing, cleaning and assembling the structure. After delivery to Chooz, we installed side and bottom PMTs in far detector. All PMTs will be installed by November. This poster shows the long way of PMTs until detector. (author)
Primary Subject
Source
CEA Saclay, Astroparticule et Cosmologie Laboratoire (APC), IRFU, 91 - Gif-sur-Yvette (France); 1201 p; 2009; p. 1188-1189; Conference Neutrino Champagne LowNu 2009: 5. international workshop on low energy neutrino physics; Reims (France); 19-21 Oct 2009; Available in abstract form only, full text entered in this record
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Miscellaneous
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AbstractAbstract
[en] Detectors for high-energy physics make use of photomultipliers in a variety of ways. They include high resolution time-of-flight measurements, Cerenkov light detection, precise pulse-height measurements, etc. In particular, the use of large numbers of photomultipliers in total-energy (or ''calorimetry'') detectors requires high stability, reliability and low-cost. This aspect is illustrated by the example of a new large detector built to observe proton-antiproton collisions at very high energies
[fr]
Les detecteurs employes en physique de hautes energies utilisent les photomultiplicateurs de differentes facons. On a, par exemple, des mesures de temps de vol a haute resolution, l'observation de lumiere Cerenkov, des mesures de hauteurs d'impulsion de haute precision, etc. En particulier, on utilise des grandes quantites de photomultiplicateurs pour la mesure d'energie totale (dans les ''calorimetres''), ce qui necessite des stabilites et fiabilites tres poussees, et un cout unitaire reduit. Pour illustrer ces aspects, on decrit a titre d'exemple un nouveau grand detecteur destine a observer des collisions protons-antiprotons de tres haute energieOriginal Title
Grands detecteurs et photomultiplicateurs dans les experiences au CERN
Record Type
Journal Article
Journal
Onde Electrique; ISSN 0030-2430;
; v. 62(8-9); p. 73-76

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Bohme, R.C.
General Mining Union Corp. Ltd., Johannesburg (South Africa)1984
General Mining Union Corp. Ltd., Johannesburg (South Africa)1984
AbstractAbstract
[en] Apparatus for measuring radioactive emission from a sample includes: a housing; parallel elongate scintillation crystal radiation detectors; elongate photomultipliers each arranged adjacent and attached to a detector and disposed such that the detector lies between the photomultiplier and the passage for the sample; light transmitting means joining the multipliers to their detectors; and means for connecting electronic measuring means to the photomultipliers. The light transmitting means may comprise optical prisms associated with each photomultiplier and detector. The prism may be octagonal in shape in a direction transverse to the elongate axes of the detector and multiplier. In separate claims: the housing is a lead tunnel; the inside of the housing is lined with lead which has a lower level of radioactive emission than the lead of the tunnel; the wall on the inside of the housing is lined with a metal having a lower atomic number than lead; and the detectors, their multipliers and prisms are held in position within two U-shaped sleeves which surround the passage through the opening
Source
9 Aug 1984; 21 Dec 1979; vp; AU PATENT DOCUMENT 80/65067/B/; ZA PRIORITY 79/6989; Available from Patent Office, P.O. Box 200, Woden, A.C.T; Priority date: 21 Dec 1979
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Betoule, Michel.
Hyperelec, 75 - Paris (France)1973
Hyperelec, 75 - Paris (France)1973
AbstractAbstract
[en] Photomultiplier with lateral outlets, said outlets being arranged along one and the same generatrix of the tube-envelope. In view of the very small diameter of that photo-multiplier and because of its lateral outlets, it is possible to combine a large number of such photo-multipliers for forming a scintiscanning matrix, the required connections being made in the space left between four photomultipliers. The thus defined matrix provides a satisfactory resolution of the detected image
[fr]
On decrit un photomultiplicateur a sorties laterales, les sorties etant disposees le long d'une generatrice unique de l'enveloppe du tube. Le tres faible diametre de ce photomultiplicateur et les sorties laterales permettent d'en grouper un grand nombre pour former une matrice de scintigraphie, les connexions etant realisees dans l'espace laisse libre entre quatre photomultiplicateurs. La matrice ainsi definie permet une resolution suffisante de l'image detecteeOriginal Title
Photomultiplicateur a sorties laterales et matrice pour scintigraphie constituee de tels photomultiplicateurs
Source
13 Jul 1973; 9 p; FR PATENT DOCUMENT 2237312/A/; Available from Institut National de la Propriete Industrielle, Paris (France).
Record Type
Patent
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AbstractAbstract
[en] The time resolution capabilities of prototype microchannel plate and static crossed-field photomultipliers have been investigated. Measurements were made of electron transit time, rise time, time response, single phtoelectron time spread and multiphotoelectron time spread for LEP HR350 proximity focused high gain curved microchannel plate and VPM-154A/1.6L static crossed-field photomultipliers. The experimental data have been compared with results obtained with conventionally designed high speed photomultipliers. Descriptions are given of both the measuring techniques and the measuring systems. 16 refs
Source
Nuclear science symposium; San Francisco, CA, USA; 19 - 21 Oct 1977; CONF-771023--
Record Type
Journal Article
Literature Type
Conference
Journal
IEEE Transactions on Nuclear Science; v. NS-25(1); p. 582-590
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AbstractAbstract
[en] The photomultipliers comprise multi-alkali or bi-alkali photocathodes (types Sb-K-Cs and Sb-Na-K) and box and venetian-blind multiplier systems. THe dynodes consist of either a AgMg alloy or an antimony-cesium emitter on a nickel backing. The system is described of photomultiplier designations set by Czechoslovak standards. The specifications are shown in table of Czechoslovak photomultipliers. (H.S.)
Original Title
Fotonasobice ceskoslovenske vyroby
Source
Tesla, Premysleni (Czechoslovakia). Vyzkumny Ustav Pristroju Jaderne Techniky; 280 p; nd; p. 89-93; Conference on nucleonic instruments and their use in the CSSR; Pribram (Czechoslovakia); 18-22 May 1981
Record Type
Miscellaneous
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Conference
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Chevalier, Philippe; Seeman, Bronislav.
Societe de Prospection Electrique Schlumberger, 75 - Paris (France)1972
Societe de Prospection Electrique Schlumberger, 75 - Paris (France)1972
AbstractAbstract
No abstract available
Original Title
Procede et dispositif de stabilisation du gain d'un photomultiplicateur; used in γ spectrometry
Source
24 Jan 1972; 7 p; FR PATENT DOCUMENT 2168849/A/; Available from INPI, Paris; Available from Institut National de la Propriete Industrielle, Paris (France).
Record Type
Patent
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AbstractAbstract
No abstract available
Original Title
Base resistiva transistorizada para fotomultiplicadora; Gain stabilization
Source
32. Annual Meeting of the Brazilian Society for the Advancement of Science; Rio de Janeiro, Brazil; 6 - 12 Jul 1980; Published in summary form only.
Record Type
Journal Article
Literature Type
Conference
Journal
Cienc. Cult. (Sao Paulo) Supl; v. 32(7); p. 332
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