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AbstractAbstract
[en] Short communication
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Source
Israel Physical Society, Jerusalem (Israel); Bulletin of the IPS; v. 39; 175 p; Apr 1993; p. 21; Israel physical society 1993 annual meeting; Tel-Aviv (Israel); 4 Apr 1993
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AbstractAbstract
[en] The uncertainty of dose measurements is obtained based on a number of factors that are inevitable. Therefore, the uncertainty must be determined carefully to ensure the reliability of dose measurements within a certain confidence level. The uncertainty of a secondary instrument NPL 2560 for X-ray dose measurements at this Secondary Standards Dosimetry Laboratory was 22%. This is the best uncertainty value that can be offered by this laboratory for calibration of radiation detecting instruments in Malaysia. (author)
Original Title
Anggaran ketakpastian dalam pengukuran faktor tentukuran menggunakan sinar-X di Makmal Piawai Dosimetri Keduan
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Journal Article
Journal
Jurnal Sains Nuklear Malaysia; v. 3(1); p. 42-48
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AbstractAbstract
[en] Short communication
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Secondary Subject
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Journal Article
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AbstractAbstract
[en] Short communication
Primary Subject
Source
Malaysian Radiological Society, Kuala Lumpur (Malaysia); 471 p; 1995; p. 445; Malaysian Radiological Society; Kuala Lumpur (Malaysia); 7. ASIAN and Oceanian congress of Radiology; Kuala Lumpur (Malaysia); 28 May - 1 Jun 1995
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AbstractAbstract
[en] ''High flux'' diodes offer advantages over other dosimetric methods in X-ray beams of very high instantaneous intensity: linear accelerators and flash generators. They allow the measurement of pulsed doses and dose rates up to 1010r.s.-1, and give an immediate reading of the dose or peak dose rate by means of simple electronic devices
[fr]
Les diodes ''haut flux'' remplacent avantageusement les autres procedes dosimetriques dans les faisceaux de rayons X a tres grande intensite instantanee: accelerateurs lineaires et generateurs flash. Elles permettent la mesure des doses par impulsion et des debits jusqu'a 1010r.s.-1. Elles permettent en outre une lecture immediate de la dose ou du debit crete a l'aide de dispositifs electroniques simplesOriginal Title
Utilisation des diodes ''haut flux'' en dosimetrie aupres des machines a fort debit
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Source
Societe Francaise de Radioprotection, 92 - Montrouge; p. 702-717; 1976; Societe Francaise de Radioprotection; Montrouge, France; 8. International congress of the French Society for Radiation Protection: basic and applied aspects of dosimetry; Saclay, France; 23 Mar 1976
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Book
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AbstractAbstract
[en] Ionization chambers, with air equivalent plastic walls, have been used as the main x-ray dosimetry system, since its response permits to give the doses in Roentgens. From the commercial availability of plastic scintillators with air equivalent atomic number we have studied its use in x-ray dosimetry. This paper devised a system with which it is possible to reduce side effects that introduce errors and obtain a response independent of energy, from 20 to 180 KeV and it is also expected to behave that way for higher energies. The system has a high efficiency and precision for a wide dose range and it is then a new alternative to measure x-ray doses. Results obtained with a prototype, built ad-hog, make it possible its use with dosimetric purposes with several advantages over conventional. (author)
Original Title
Dosimetro de radiaciones construido con centelladores plasticos
Source
12. Brazilian Congress on Biomedical Engineering and 5. Latin American Conference on Medical Physics and 2. Workshop on Medical Physics and 1. Workshop of Physics in Medicine and Biomedical Engineering; 12. Congresso Brasileiro de Engenharia Biomedica; Ribeirao Preto, SP (Brazil); 7-11 Oct 1990
Record Type
Journal Article
Literature Type
Conference
Journal
RBE. Revista Brasileira de Engenharia. Caderno de Engenharia Biomedica; ISSN 0102-2644;
; v. 7(1); p. 134-144

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Mascarenhas, S.; Vargas, H.; Cesar, C.L.
Proceedings of the Meeting on Medical Physics in Rio de Janeiro1983
Proceedings of the Meeting on Medical Physics in Rio de Janeiro1983
AbstractAbstract
No abstract available
Original Title
Dosimetro fotoacustico
Primary Subject
Source
Associacao Brasileira de Fisicos em Medicina, Rio de Janeiro; 156 p; 1983; p. 129; Meeting on Medical Physics in Rio de Janeiro; Rio de Janeiro, RJ (Brazil); 25-26 Aug 1983; Published in summary form only.
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Waker, A.J.; Eivazi, M.T.
Proceedings of the 4. International Symposium on Radiation Physics-Abstracts1988
Proceedings of the 4. International Symposium on Radiation Physics-Abstracts1988
AbstractAbstract
[en] Published in summary form only
Source
Sao Paulo Univ., SP (Brazil); 277 p; 1988; p. 63; 4. International Symposium on Radiation Physics; Sao Paulo, SP (Brazil); 3-7 Oct 1988
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AbstractAbstract
[en] As the demand of a simple and precise method increases to evaluate the performance of the inverter type x-ray unit, we evaluated the usefulness of the recently-introduced X-ray Multi-Function Test Device (moldel : Xi (unfors)-prestige). We compared the performance of X-ray Multi-Function Test Device (XMFTD) which is non-inveasive type device with the performance of Dynalyzer III that has been most widely used inveasive type measure device. X-ray output dose was increased a little in the XMFTD, but both devices were below the performance evaluation standard, 0.002 in the output reproducibility. Linearity of XMFTD were below 0.1 which means that Dynalyzer III showed more excellency in linearity. As the the accuracy of exposure factor, 1.8 and 2 tube voltage, 2.01 and 2.3 tube current were measured. The exposure time was also measured by 0.01 sec ±10%. Both devices were within the acceptance of performance evaluation standard. We proved the usefulness of X-ray Multi-Function Test Device (model: Xi (unfors)-prestige) to evaluated the performance on reproductibility and linearity of X-ray output and accuracy of exposure factor of inverter type unit.
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16 refs, 3 figs, 2 tabs
Record Type
Journal Article
Journal
Journal of the Korean Society of Radiological Technology; ISSN 1226-2854;
; v. 31(2); p. 123-127

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Jang-Lyul, Kim; Si-Young, Chang
International conference on radiation and health. Program and book of abstracts1996
International conference on radiation and health. Program and book of abstracts1996
AbstractAbstract
[en] Short communication
Primary Subject
Source
Anon; 196 p; 3 Nov 1996; p. 147; Radiation and Health Israel 1996; Beer Sheva (Israel); 3-7 Nov 1996
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Miscellaneous
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