Gammex Phantom 404 LE User Manual - Page 15

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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. A properly stored phantom will reduce the amount of moisture lost

per year.

For most climate-controlled environments, the phantom weight should be checked every

six months. Phantoms used in high temperatures/low humidity environments or in mo-

bile situations should be tested more frequently. As the phantom desiccates, the scan-

ning 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).

Refer to the Charts and Graphs section of the manual to find the appropriate charts and

graphs for your 404 LE phantom, which include:

Data Sheet

Phantom Weight Chart