Tag Archives: Film Processing

Components of the Fixer and their Function/s

Hariette A.W.

The table below shows the different chemicals that make up the fixer chemical as well as their functions.

Leave a comment

Alternative Film Processing Methods

Hariette A.W.

1.) Rapid Processing – processing ca now be a s rapid as 30 s and useful in angiography, special procedures, surgery, and emergency rooms, where time is most critical. – The chemical are more concentrated and developer and fixer temperature are higher. 2.) Extended Processing – is particularly useful in mammography and takes as long as 3 min. and improvements in contrast and patient dose occur only with single-emulsion film and not recommended for double emulsion films because the improvement in contrast or dose is insignificant with such films Two Principal Advantages: greater image contrast and lower patient dose. Contrast Click Here To Read More

Leave a comment

Transport System of the Automatic Processor

Hariette A.W.

Feed Tray – where the film to be processed is inserted into the automatic processor in the darkroom. Entrance Rollers –grip the film to begin its trip though the processor. Microswitch – is engaged to control the replenishment rate of the processing chemicals. 3 Principal Subsystems • Roller • Transport Racks • Drive Motor Rollers Subassembly Types of Rollers 1.) Transport Roller – diameter of 1 in. – Covey the film along its path. – They either are positioned opposite one another in pairs or are off set from one another. 2.) Master Roller (Solar Roller) – diameter of 3 Click Here To Read More

Leave a comment