Výsledky vyhledávání - "H L, Kronholz"

The desired dose distribution in blood irradiators

Autor: H.-L. Kronholz, Chr. Moustakis, Th T. Schange

Publikováno v: Zeitschrift für Medizinische Physik. 8:97-102

The irradiation of blood products is indispensable in order to avoid the otherwise associated Graft-Versus-Host-Disease. Normally a dose of 30 Gy is considered to be adequate with a minimum acceptable value of 25 Gy. Approximately 67 blood irradiator

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71bd08d8576ce152f96a360ca29aa98f
https://doi.org/10.1016/s0939-3889(15)70241-2

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Blasendetektoren, ein alternatives Verfahren zur Dosimetrie und Spektrometrie in Neutronenfeldern

Autor: W. Rosenstock, H.-L. Kronholz

Publikováno v: Zeitschrift für Medizinische Physik. 7:143-150

Viskose Gele eignen sich als Trägersubstanz feinster Tröpfchen einer überhitzten Flüssigkeit. Durch Neutronenstrahlung werden in einigen Tröpfchen sichtbare Blasen gebildet, deren Anzahl der Dosis proportional ist. Die mit diesen Polymeren gefü

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f895867dadcddad393ab94037573df70
https://doi.org/10.1016/s0939-3889(15)70249-7

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Dosimetry of soft x-rays in thin liquid layers

Autor: Wolfgang Göhde, H. L. Kronholz, Erhard Severin, Wolfgang Köhnlein

Publikováno v: Physics in medicine and biology. 50(7)

Very thin material layers (100 microm) partially absorb ionizing radiation of low energy. When irradiating monolayer cell cultures from above, attention must be paid to absorption by the medium. Frequently, the volume of the nutrient medium is variab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::892f535d177273b8ac7c44c78ca33ae7
https://pubmed.ncbi.nlm.nih.gov/15798336

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The relative biological effectiveness of low doses of 14 MeV neutrons in steady-state murine spermatogenesis as determined by flow cytometry

Autor: U B, Hacker-Klom, W, Köhnlein, H L, Kronholz, W, Göhde

Publikováno v: Radiation research. 153(6)

The relative biological effectiveness of 14 MeV neutrons in the low-dose rangeor =1 Gy has been determined in differentiating and differentiated spermatogonia. Male NMRI mice were exposed to single doses of 2 cGy to 3 Gy of (60)Co gamma rays or neutr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::92a72a7d6898c4f77f79e4442ab8e862
https://pubmed.ncbi.nlm.nih.gov/10825748

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[The modification of programmable pacemakers by therapeutic irradiation]

Autor: M, Wilm, H L, Kronholz, J, Schütz, T, Koch

Publikováno v: Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]. 170(4)

More than 300,000 pacemakers are implanted worldwide. During radiation therapy a damage of the pacemaker electronic is possible.Twenty pacemakers have been irradiated with photons or electrons experimentally in three different situations: a) pacemake

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::66677b7a04141f142923647ddd01c429
https://pubmed.ncbi.nlm.nih.gov/8165520

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[The physical and technical outlook for neutron therapy in Germany]

Autor: R, Schmidt, J, Rassow, U, Haverkamp, A, Hess, K H, Höver, U, Jahn, H L, Kronholz, P, Meissner, K, Regel

Publikováno v: Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]. 169(3)

All five fast neutron therapy centres in Germany use low energy cyclotrons or neutron generators and are, therefore, at the low energy end of the 21 neutron therapy facilities presently in use worldwide. The depth dose characteristics are worse than

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::b742ce9b28e534389702c4ced2719b43
https://pubmed.ncbi.nlm.nih.gov/8465252

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[Direct radiographic magnification in combination with digital radiography for bone imaging]

Autor: G, Reuther, H L, Kronholz

Publikováno v: Der Radiologe. 31(9)

The usefulness of direct radiological magnification is inversely related to the resolution of film-screen systems when very small focal spots are used. Thus, spatial resolution of digital luminescence radiography (DLR) may closely approximate that of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::61369f184f727963d6c302f3742456c2
https://pubmed.ncbi.nlm.nih.gov/1947061

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[Development and prospects of medical magnification radiography]

Autor: G, Reuther, H L, Kronholz, K B, Hüttenbrink

Publikováno v: Der Radiologe. 31(9)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::4449943910a445266d890b3c4b7875e2
https://pubmed.ncbi.nlm.nih.gov/1947057

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[Quality assurance in x-ray installations for therapy in accordance with the x-ray regulations]

Autor: D, Möller, H L, Kronholz, J, Schütz

Publikováno v: Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]. 167(7)

For the conventional X-ray therapy the Röntgenverordnung demands the examination of the dose rate in the radiation beam. The measurements and the results are demonstrated. Over a long period the X-ray equipment shows a constant dose rate. Controls o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::b700d019e1ea0242f375d21342c8875f
https://pubmed.ncbi.nlm.nih.gov/1858018

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