Process for depositing I-125 onto a substrate used to manufacture I-125 sources
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United States of America Patent
Stats
-
Mar 8, 1988
Grant Date -
N/A
app pub date -
Jun 10, 1986
filing date -
Jun 10, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a process for depositing I-125 on a substrate which comprises contacting a predetermined surface area of substrate with Xe-125 gas, whereby the Xe-125 decays to I-125 and the I-125 in turn deposits as a solid on the surface of the substrate, the contact being for a time sufficient to deposit at least about 1 microcurie of I-125. I-125 is thereby deposited in a relatively uniform amount over the surface area of the substrate. The substrate is then assayed to determine how much I-125 has been deposited. The substrate is then divided into pieces of measured surface area, each piece therefore containing a measured amount of deposited I-125, and each piece can then be used in the manufacture of an I-125 source.
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