Biomaterial Database

[Practical experiences and problems with precision testing in direct radiography in a medical center]. 1988

U Ranzinger, and J Kahlhöfer

Radiologische Klinik, Friedrich-Ebert-Krankenhaus Neumünster.

This is a report on the practical experience in respect of the monthly testing of the precision (constancy and long-term reproducibility of results) of X-ray film apparatus. The test method described in the German DIN standard No. 6868 Part 3 has even been refined in some points.

UI	MeSH Term	Description	Entries
D011829	Radiation Dosage	The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plants or animal. In RADIOTHERAPY, radiation dosage is expressed in gray units (Gy). In RADIOLOGIC HEALTH, the dosage is expressed by the product of absorbed dose (Gy) and quality factor (a function of linear energy transfer), and is called radiation dose equivalent in sievert units (Sv).	Sievert Units,Dosage, Radiation,Gray Units,Gy Radiation,Sv Radiation Dose Equivalent,Dosages, Radiation,Radiation Dosages,Units, Gray,Units, Sievert
D011859	Radiography	Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film).	Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D011874	Radiometry	The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.	Geiger-Mueller Counters,Nuclear Track Detection,Radiation Dosimetry,Dosimetry, Radiation,Geiger Counter,Geiger-Mueller Counter Tube,Geiger-Mueller Probe,Geiger-Mueller Tube,Radiation Counter,Counter Tube, Geiger-Mueller,Counter Tubes, Geiger-Mueller,Counter, Geiger,Counter, Radiation,Counters, Geiger,Counters, Geiger-Mueller,Counters, Radiation,Detection, Nuclear Track,Dosimetries, Radiation,Geiger Counters,Geiger Mueller Counter Tube,Geiger Mueller Counters,Geiger Mueller Probe,Geiger Mueller Tube,Geiger-Mueller Counter Tubes,Geiger-Mueller Probes,Geiger-Mueller Tubes,Probe, Geiger-Mueller,Probes, Geiger-Mueller,Radiation Counters,Radiation Dosimetries,Tube, Geiger-Mueller,Tube, Geiger-Mueller Counter,Tubes, Geiger-Mueller,Tubes, Geiger-Mueller Counter
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014963	X-Ray Intensifying Screens	Screens which absorb the energy in the x-ray beam that has penetrated the patient and convert this energy into a light pattern which has as nearly as possible the same information as the original x-ray beam. The more light a screen produces for a given input of x-radiation, the less x-ray exposure and thus shorter exposure time are needed to expose the film. In most film-screen systems, the film is sandwiched between two screens in a cassette so that the emulsion on each side is exposed to the light from its contiguous screen.	Film-Screen Systems, X-Ray,Radiographic Intensifying Screens,Screen-Film Systems, X-Ray,X-Ray Film-Screen Systems,Screens, Radiographic Intensifying,Xray Intensifying Screens,Film Screen Systems, X Ray,Film-Screen System, X-Ray,Intensifying Screen, Radiographic,Intensifying Screen, X-Ray,Intensifying Screen, Xray,Intensifying Screens, Radiographic,Intensifying Screens, X-Ray,Intensifying Screens, Xray,Radiographic Intensifying Screen,Screen Film Systems, X Ray,Screen, Radiographic Intensifying,Screen, X-Ray Intensifying,Screen, Xray Intensifying,Screen-Film System, X-Ray,Screens, X-Ray Intensifying,Screens, Xray Intensifying,System, X-Ray Film-Screen,System, X-Ray Screen-Film,Systems, X-Ray Film-Screen,Systems, X-Ray Screen-Film,X Ray Film Screen Systems,X Ray Intensifying Screens,X-Ray Film-Screen System,X-Ray Intensifying Screen,X-Ray Screen-Film System,X-Ray Screen-Film Systems,Xray Intensifying Screen