410 IAC 5-10.1-9 - Leak testing of sealed sources
Authority: IC 16-41-35-26; IC 16-41-35-29
Affected: IC 16-41-35
Sec. 9.
(a)
Requirements. Each licensee using sealed sources of radioactive material shall
have the sources tested for leakage. Records of leak test results shall be kept
in units of microcuries and maintained for inspection by the board for 6 months
after the next required leak test is performed or until transfer or disposal of
the sealed source.
(b) Method of
Testing. Tests for leakage shall be performed only by persons specifically
authorized to perform such tests by the board , the U.S. Nuclear Regulatory
Commission, an agreement state or a licensing state . The test sample shall be
taken from the surface of the source, source holder or from the surface of the
device in which the source is stored or mounted and on which one might expect
contamination to accumulate. The test sample shall be analyzed for radioactive
contamination, and the analysis shall be capable of detecting the presence of
0.005 microcurie of radioactive material on the test sample.
(c) Interval of Testing. Each sealed source
of radioactive material shall be tested at intervals not to exceed 6 months. In
the absence of a certificate from a transferor indicating that a test has been
made prior to the transfer, the sealed source shall not be put into use until
tested. If for any reason, it is suspected that a sealed source may be leaking,
it shall be removed from service immediately and tested for leakage as soon as
practical.
(d) Leaking or
Contaminated Sources. If the test reveals the presence of 0.005 microcurie or
more of leakage or contamination, the licensee shall immediately withdraw the
source from use and shall cause it to be decontaminated, repaired or disposed
of in accordance with 410 IAC 5. A report describing the equipment involved,
the test results, and the corrective action taken shall be filed with the
board .
(e) Exemptions. The
following sources are exempted from the periodic leak test requirements of 410
IAC 5-10.1-9(a) through (d):
(1) Hydrogen-3
sources;
(2) Sources of radioactive
material with a half-life of 30 days or less;
(3) Sealed sources of radioactive material in
gaseous form;
(4) Sources of beta-
and/or gamma-emitting radioactive material with an activity of 100 microcuries
or less; and
(5) Sources of
alpha-emitting radioactive material with an activity of 10 microcuries or
less.
Notes
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