Skip to main content

Posts

Showing posts with the label Darkroom and Imaging Processing

DARKROOM ILLUMINATION

 Darkroom Illumination: - dividend into 2 ordinary white light and safe light. White light is important because of the following  • To inspect and maintain cassette and screens • Cleaning of all work surfaces and floors  • And to services the processors  Sitting of the white light  * Sited close to the ceiling (to avoid casting strong shadow) * Moderate in intensity (60W tungsten or 30W fluorescent) (accommodation easier after safe light) * Centrally place or otherwise  All films get fogged when exposed by the white light  Safe Light  A safe light is a red light bulb situated in a darkroom at a distance of 1.2m (4 ft) off the working surface and use for a processing purpose. And a colored lighting which provides sufficient illumination by which one can handle, manipulate and process film with no significant fogging occurring,  These ensure loading and unloading of x-ray cassette much easier and provides pleasant working condition for the pers...

Radiology Darkroom

A Darkroom is a completely light-tigh room where personal exposure will process latend image, load and unload x-ray films. Location   Depending on the department design, it should be centrally sited and serviced by hatch from neighboring conventional or x-ray room Darkroom should be  • Excluded from wet (damp) or hot areas • Have water and power supply • Well Ventilation  Types of darkroom entrance   Typically darkroom requires frequent in and out without admitting white light, special design entrance are needed. 1 Single door 2 Double door 3 Labyrinth door 4 Rotating/Revolving door system  Single door:  - precautions need to be taken to prevent light from entering while processing, when more than 1 person is using the room and in cases of accident (you need to over ride the interlock). Double door: - each door has to be hard in structure and well fitted (to exclude all light when closed). It can be economical and term of space (when the vestibule is small...