A PINHOLE CAMERA FOR RADIATION RESEARCH IN DENTISTRY
Journal Article
·
· J. Dental Res.
The design and theory of a pinhole camera that produces simultaneously radiographs and photographs of any object which emits x radiation and reflects visible light are described. Such a camera is useful for radiation research in dentistry because both the patient and the x-ray apparatus emit x radiation and reflect visible light while the patient is examined with x rays. The factors controlling time of exposure, size, and sharpness of the image are presented mathematically. Photographs and radiographs that were produced simultaneously of dental subjects are illustrated. Satisfactory photographs were made with the pinhole camera with exposures ranging between 35 to 60 min. Radiographic exposures made with radiation generated with 90 kvp ranged between 1500 and 4500 ma-sec. (H.H.D.)
- Research Organization:
- Univ. of Michigan, Ann Arbor
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-005688
- OSTI ID:
- 4755470
- Journal Information:
- J. Dental Res., Journal Name: J. Dental Res. Vol. Vol: 41
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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