Radiographic exposure slide rules
| Autor: | J E Burns |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Slide rule
business.industry Radiography General Medicine History 20th Century Radiation Dosage computer.software_genre Trial and error law.invention law Humans Medicine Radiology Nuclear Medicine and imaging Occupational exposure Data mining Radiometry business Set (psychology) Nuclear medicine computer Automatic exposure control |
| Zdroj: | The British Journal of Radiology. 72:48-54 |
| ISSN: | 1748-880X 0007-1285 |
| DOI: | 10.1259/bjr.72.853.10341689 |
| Popis: | Before automatic exposure control was fitted to diagnostic X-ray sets, radiographers were faced with the problem of choosing the parameters that would give the best radiographic image. For a new X-ray set whose performance was unknown, this was no easy matter, and often required considerable trial and error because of the number of variables involved. To reduce the amount of work, special slide rules were invented which calculated the effect of some of these variables. Five such slide rules, dating from between about 1910 and 1950, are illustrated and discussed, including the light they shed on changes in radiographic practice over the years. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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