Radiology 101 » Film Base http://www.radtech1895.com X-ray, Radiation, RadTech, Radiology, Radiologic Technology, Reviews, Tips Sat, 04 Feb 2012 15:23:30 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 What You Need To Know About Film Base http://www.radtech1895.com/2009/02/what-you-need-to-know-about-film-base.html/ http://www.radtech1895.com/2009/02/what-you-need-to-know-about-film-base.html/#comments Tue, 03 Feb 2009 07:35:16 +0000 Hariette A.W. http://www.radtech1895.com/?p=536 Click Here To Read More]]> Base – is the foundation of radiographic film.
- To provide a rigid structure onto which the emulsion can be coated.
- Flexible and fracture-resistant to allow easy handling but rigid to be snapped into a viewbox.
- 150 to 300 um thick, semi-rigid, lucent and made of polyester.

Dimensional Stability – the property of the base to withstand rough handling

Types of Base

Glass Plate – the original radiographic film base.

Cellulose Nitrate – a substitute material to the glass plate because of it’s unavailability and soon became the standard base.

Cellulose Triacetate – has properties similar to those of cellulose nitrate but is not as inflammable.

Polyester – is more resistant to warping from age and stronger than cellulose triacetate, permitting easier transport through automatic processors.

Characteristics

- Dimensional stability is superior.
- Bases are also thinner than triacetate base (approximately 175 um) but are just as strong.

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