DIN 6868-4:1987
Image quality assurance in X-ray diagnosis; constancy checking in radioscopy with an X-ray image intensifier and photography from the X-ray image intensifier output screen
- Standard No.
- DIN 6868-4:1987
- Release Date
- 1987
- Published By
- German Institute for Standardization
- Status
- 2007-10
- Replace By
- DIN 6868-4:2007
- Latest
- DIN 6868-4:2020
- DIN 6868-4:2021-03
- DIN 6868-4:2007
- Scope
- The standard establishes uniform methods for checking image quality constancy. It describes constancy checking in radioscopy and photography with X-ray image intensifiers. Testing the constancy of governing characteristics of both methods enables conclusions to be drawn on the constancy of the image generating system. In radioscopy, the resolving power, the contrast, the effective radiation field, and the dose rate are used as characteristics, in photography the optical density, the resolving power, the contrast, the effective radiation field," and the dose. A test device is described; permissible limit deviations are stated for this. Other testdevices are permissible provided they fulfil the conditions required in the standard; the determination; of the permissible limit deviations for such ""other test devices"" is also stated.; The standard should place the user of a diagnostic X-ray unit in a position to be able to check himself regularly the constancy of the material-dependent and equipment engineering-enduced image quality according to the forthcoming modification amendments of the German X-ray regulation.#",,#
DIN 6868-4:1987 history
- 2021 DIN 6868-4:2021 Image quality assurance in diagnostic X-ray departments - Part 4: Constancy testing of medical X-ray equipment for projection radiography with digital image receiver systems and fluoroscopy
- 1970 DIN 6868-4:2020-10 Image quality assurance in diagnostic X-ray departments - Part 4: Constancy testing of medical X-ray equipment for projection radiography with digital image receiver systems and fluoroscopy
- 0000 DIN 6868-4:2020
- 1970 DIN 6868-4 E:2019-05 Image quality assurance in diagnostic X-ray departments - Part 4: Constancy testing of medical X-ray equipment for projection radiography with digital image receiver systems and fluoroscopy
- 2019 DIN 6868-4 E:2019 Draft Document - Image quality assurance in diagnostic X-ray departments - Part 4: Constancy testing of medical X-ray equipment for fluoroscopy
- 2007 DIN 6868-4:2007 Image quality assurance in diagnostic X-ray departments - Part 4: Constancy testing of medical X-ray equipment for fluoroscopy
- 1987 DIN 6868-4:1987 Image quality assurance in X-ray diagnosis; constancy checking in radioscopy with an X-ray image intensifier and photography from the X-ray image intensifier output screen
