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Effect of thermal treatment on heating characteristics of NiCu alloy for hyperthermia: Preliminary studies

✍ Scribed by S. D. Ferguson; J. A. Paulus; R. D. Tucker; S. A. Loening; J. B. Park

Publisher
Wiley (John Wiley & Sons)
Year
1993
Tongue
English
Weight
585 KB
Volume
4
Category
Article
ISSN
1045-4861

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✦ Synopsis

Abstract

Ferromagnetic Niο£ΏCu alloy wires were characterized in order to obtain well‐defined thermoseeds for application in interstitial hyperthermia of prostate cancer. Thermoseeds have been produced which possess Curie points in the therapeutic hyperthermia range, approximately 40 to 50 Β°C. The effect of thermal treatment and composition on the heating characteristics of the thermoseeds were investigated. The preliminary study shows that the recrystallization is crucial for altering thermoseeds' heating characteristics. Obtaining thermoseeds which behave as desired depends on changes in annealing times and temperatures. One may increase the maximum heating temperature (similar to Curie temperature) by increasing the annealing time and cooling time. Decreasing the lower annealing plateau temperature also increases the maximum seed heating temperature. Higher nickel content compositions did not affect rise time but increased the maximum heating temperature. Β© 1993 John Wiley & Sons, Inc.

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