Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Raymond P. Rossi"'
Autor:
Raymond P. Rossi, Keith J. Strauss, John M. Boone, Douglas Pfeiffer, Pei-Jan Paul Lin, Jeffrey S. Shepard, B J Conway
Publikováno v:
Medical Physics. 20:789-794
Fluoroscopic procedures, in general, result in much higher exposures to patients than do most types of radiographic procedures [National Council on Radiation Protection, Report 100, p. 31 (1989)]. In spite of this, fluoroscopic exposure rates can var
Autor:
Randy B. Howard, Henry Chu, Raymond P. Rossi, Tere Marcell, Bernard E. Zeligman, Michael R. Johnston, David W. Mulvin
Publikováno v:
Laboratory Animals. 26:100-106
Roentgenographic techniques were investigated for imaging orthotopic lung tumours in anaesthetized nude rats endobronchially implanted with human lung cancer cells. A conventional radiographic unit with a dual-screen, double-emulsion film mammographi
Autor:
Raymond P. Rossi
Publikováno v:
Medical Physics. 21:141-143
A test device which can indirectly measure the performance of an automatic exposure control system and which offers the potential to reduce the time and film requirements for such tests has been evaluated. Evaluation results demonstrate that the devi
Autor:
Edward L. Nickoloff, Gerald Cohen, Caridad Borras, Robert A. Jucius, R. Edward Hendrick, Thomas N. Hangartner, Keith J. Strauss, Robert K. Cacak, Raymond P. Rossi, Robert J. Kriz, Thomas J. Beck, Theodore Villafana, Lawrence N. Rothenberg, Joel E. Gray, Pei-Jan Paul Lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d21cf7e9a0e995a8463e55ac295029ac
https://doi.org/10.37206/38
https://doi.org/10.37206/38
Publikováno v:
Health physics. 61(5)
Broad beam geometry was used to measure the x-ray transmission properties of gypsum wallboard, steel, plate glass, and concrete for x-ray tube potentials of 50-125 kVp using an x-ray generator having a three-phase, twelve-pulse waveform and total ini
Publikováno v:
Radiology. 129:799-802
A real time fluoroscopic imaging system which provides capability for reduced patient exposure by as much as a factor of five has been developed. Modifications to the system include the incorporation of a variable aperture iris between the image inte
Publikováno v:
Radiology. 122:499-504
Radiation exposure of the newborn during routine chest and abdominal radiographic examinations has been determined. The exposure has been measured at sites representing the entrance and exit chest, entrance, midline, and exit abdomen, the gonads, and
Autor:
William R. Hendee, Raymond P. Rossi
Publikováno v:
Radiology. 120:409-412
The specification of performance characteristics for diagnostic x-ray equipment involves an interplay between purchaser and supplier which often results in inadequate understanding of imaging requirements by the supplier, and unfulfilled expectations
Autor:
Raymond P. Rossi, Neil B. Bromberg
Publikováno v:
SPIE Proceedings.
Large area contrast loss in image intensifiers results in reduced performance at low spatial frequencies and may limit the imaging capabilities of such systems for structures of clinical interest having inherently low subject contrast. The contrast r