Gammex 403 GS LE, User Manual

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Phantom Desiccation
Over time, the phantom’s water-based gel will slowly lose moisture. This process is ac-
celerated by high temperatures, incorrect storage, and damage to the case or scanning
surface. Consistently storing the phantom in an air-tight container will contribute greatly
to long phantom life. Properly storing your phantom will reduce the amount of moisture
lost per year. For instructions on how to properly store and take care of your phantom,
go to the Caring for Your Phantom section.
For most climate-controlled environments, the phantom weight should be checked every
six months. Phantoms used in high temperature/low humidity environments or in mobile
situations should be tested more frequently. As the phantom desiccates, the scanning
surface may flatten out. It is suggested that the phantom be sent in for rejuvenation
once it has lost 15 grams of its total weight. When this occurs, contact GAMMEX
(1-800-GAMMEX-1).
Charts and Graphs
Refer to the Charts and Graphs section of the manual to find the appropriate charts and
graphs for your 403GS LE phantom, which include:
Data Sheet
Quantitative Measurement
Qualitative Measurement