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AbstractAbstract
[en] In radiological apparatus, edge values derived by monitoring the radiation passed through a body along many co-planar paths are subjected to a transformation process, such as a convolution integral or Fourier transform process, in order to evaluate the absorption or transmission coefficients of the elements of a matrix of elements notionally delineated, in the plane of the paths, in the body. The values are inversely transformed to synthesize further edge values, and corresponding ones of the first mentioned and further edge values are compared to derive edge value error signals. The edge value error signals are indicative of errors in the evaluation of said coefficients and they are subjected to the aforementioned transformation process to derive therefrom individual correction signals for the various elements of the matrix
Original Title
Patent
Source
3 Feb 1976; 6 p; US PATENT DOCUMENT 3,936,636
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] In a method of investigating a body by means of penetrating radiation such as X- or γ-radiation, the energy of the radiation is chosen to be such that the radiation is scattered, rather than absorbed, by the body. The scattered radiation is detected by means of banks of detector means disposed on the opposite side of the body to the source, and the detector means include energy analyzing means to enable the angle of incidence thereon of scattered radiation to be determined
Original Title
Patent
Source
3 Feb 1976; 4 p; US PATENT DOCUMENT 3,936,638
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Distler, W.
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1977
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1977
AbstractAbstract
[en] The invention is based on the problem of producing X-ray body section radiography equipment so that the positioning of the patient is simplified taking as compared to the present state of technology. This problem is solved by having the patients support equipment consisting of two supports on separate foundations, with each support being held by a clamp at the end of the housing, so that both supports have their surfaces in one plane. Each support is provided with a conveyor for moving the patient longitudinally. The clamp of one support can be loosened manually and the support with the clamp which can be loosened can be moved on its foundation longitudinally and can be adjusted in height. (orig.)
[de]
Der Erfindung liegt die Aufgabe zugrunde, ein Roentgenschichtgeraet so auszubilden, dass die Lagerung des Patienten gegenueber dem Stand der Technik vereinfacht ist. Diese Aufgabe ist dadurch geloest, dass die Patientenlagerungsvorrichtung aus zwei auf getrennten Sockeln gelagerten Liegen besteht, dass jede Liege mit einer Halterung an ihrem Ende am Gehaeuse gehaltert ist, so dass beide Liegen mit ihrer Oberflaeche in einer Ebene liegen, dass jede Liege mit einem Transportband fuer die Laengsverschiebung des Patienten versehen ist, und dass die Halterung mindestens einer Liege manuell loesbar und die Liege mit der loesbaren Halterung in bezug auf ihren Sockel laengsverschiebbar und in ihrer Hoehe einstellbar ist. (orig.)Original Title
Roentgenschichtgeraet zur Herstellung von Transversalschichtbildern
Primary Subject
Source
24 Nov 1977; 9 p; DE PATENT DOCUMENT 2619468/A/; Also available from Dt. Patentamt, Muenchen (FRG); 2 figs.
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Distler, W.
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1977
Siemens A.G., Berlin (Germany, F.R.); Siemens A.G., Muenchen (Germany, F.R.)1977
AbstractAbstract
[en] The invention is based on the problem of producing X-ray body section radiography equipment so that the patients support is not shown in the X-ray photograph. This problem is solved by having the patients support equipment consisting of two supports on separate foundations, with each support being held by a clamp at the end of the housing, so that both supports have their surfaces in one plane. Each support is provided with a conveyor for moving the patient longitudinally, and a small gap is left between the two supports in the housing opening, whose width is at least equal to the thickness of the body section. The scanning X-ray equipment passes through this small gap, so that the patients support equipment is not included. (orig.)
[de]
Der Erfindung liegt die Aufgabe zugrunde, ein Roentgenschichtgeraet so auszubilden, dass die Patientenliege im Roentgenbild nicht abgebildet wird. Diese Aufgabe ist dadurch geloest, dass die Patientenlagerungsvorrichtung aus zwei auf getrennten Sockeln gelagerten Liegen besteht, dass jede Liege mit einer Halterung an einem Ende am Gehaeuse gehaltert ist, so dass beide Liegen mit ihren Oberflaechen in einer Ebene liegen, dass jede Liege mit einem Transportband fuer die Laengsverschiebung des Patienten versehen ist, und dass zwischen den beiden in der Gehaeuseoeffnung liegenden Liegen ein schmaler Spalt freigelassen ist, dessen Breite mindestens gleich der Schichtdicke ist. Die untersuchende Roentgenstrahlung tritt dabei durch diesen schmalen Spalt hindurch, so dass die Patientenlagerungsvorrichtung nicht mehr erfasst wird. (orig.)Original Title
Roentgenschichtgeraet zur Herstellung von Transversalschichtbildern
Primary Subject
Source
24 Nov 1977; 9 p; DE PATENT DOCUMENT 2619482/A/; Also available from Dt. Patentamt, Muenchen (FRG); 2 figs.
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] It is shown that the fast digital convolution technique used for parallel x-ray beams can be used also to reconstruct a density function for diverging x-ray beams. This technique when combined with an approximate spatial filter yields good accuracy, a flexibility to cope with noise and a substantial reduction in the x-ray dosage. Finite field transforms and zero-order interpolation can be used also to improve the speed of the x-ray reconstruction process. Tests based on these methods are performed on an ideal phantom. A detailed comparison is made between a system using diverging beams, and a system using parallel beams with simulated data
Record Type
Journal Article
Journal
IEEE Transactions on Nuclear Science; (no.3); p. 1006-1011
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Chankow, N.; Banchorndhevakul, S.; Kongkum, S.
Radiation and life: Proceedings of the 8. Nuclear Science and Technology Conference (NST8)2001
Radiation and life: Proceedings of the 8. Nuclear Science and Technology Conference (NST8)2001
AbstractAbstract
No abstract available
Primary Subject
Source
Office of Atomic Energy for Peace, Bangkok (Thailand); 1110 p; Jun 2001; p. 692; NST8: 8. Conference on nuclear science and technology: Radiation and life; Radiation and life; Bangkok (Thailand); 20-21 Jun 2001; Also available from Office of Atomic Energy for Peace, Bangkok (TH)
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
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Dissing, E.; Nylinder, M.
Studsvik Energiteknik AB, Nykoeping (Sweden)1981
Studsvik Energiteknik AB, Nykoeping (Sweden)1981
AbstractAbstract
[en] The paper reports upon the developement of a methhod for the determination of water content, based on the use of dichromatic X-ray scanning absorptiometry. (G.B.)
Source
Jun 1981; 33 p; NE-SBT--81-23
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Radiopharmaceuticals are used in the diagnosis and management of various diseases. There are several reports of adverse reactions related to the use of radiopharmaceuticals, though it is not as common as conventional drugs. Adverse reactions related to radiopharmaceuticals have been not widely reported and documented. In this review, we have tried to summarize the adverse reactions associated with some of the commonly used radiopharmaceuticals. (author)
Primary Subject
Source
Available from DOI: 10.4103/ijnm.ijnm_219_20
Record Type
Journal Article
Journal
Indian Journal of Nuclear Medicine; ISSN 0972-3919;
; v. 36(2); p. 163-167

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] A framework supporting a radiation source, such as an x-ray tube, and a radiation receptor, such as an x-ray film plate holder, comprises four arms pivotally connected to form a regular parallelogram, a parallel pair of the arms extending outside the parallelogram to pivot points for the radiation source and receptor. The parallelogram is mounted on a rotor whose central axis is parallel to the parallel pair of arms. Two links between another one of the arms and the source and receptor respectively, and parallel to the central axis, hold the axis of the source and receptor aligned on a radiation axis which passes through an isocenter on the central axis as the parallelogram is angularly adjusted in planes parallel to the central axis. The angular adjustment of the parallelogram combined with turning of the parallelogram on the rotor permit the source to radiate through a subject at the isocenter, for example the human heart or brain, from throughout a solid angle while maintaining constant radiological distance between the source and subject and a constant axial alignment of the source and receptor. The radiological magnification may also be kept constant, or the receptor may be adjusted along its axis, in which case a counterweight reciprocating along the transverse arm and connected to the receptor by two cables counterbalances the receptor in all solid angle positions. (auth)
Original Title
Patent
Source
1 Jul 1975; 6 p; US PATENT DOCUMENT 3,892,967
Record Type
Patent
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Source
Transactions of the American Nuclear Society 1975 annual meeting; New Orleans, LA; 8 Jun 1975; Published in summary form only.
Record Type
Journal Article
Literature Type
Conference
Journal
Transactions of the American Nuclear Society; v. 21 p. 105-106
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
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