La. Admin. Code tit. 33, § XV-1713 - Performance Criteria for Sealed Sources

Current through Register Vol. 48, No. 3, March 20, 2022

A. Requirements for sealed sources installed after promulgation of this Chapter:
1. shall have been evaluated by the department, the Nuclear Regulatory Commission, or an agreement state in accordance with 10 CFR 32.210;
2. shall be doubly encapsulated;
3. shall use radioactive material that is as nondispersible as practical and that is as insoluble as practical if the source is used in a wet-source-storage or wet-source-change irradiator;
4. shall be encapsulated in a material resistant to general corrosion and to localized corrosion, such as 316L stainless steel or other material with equivalent resistance, if the sources are for use in irradiator pools; and
5. in prototype testing of the sealed source, shall have been leak-tested and found leak-free after each of the tests described in Subsections B-G of this Section.
B. Temperature. The test source shall be held at -40°C for 20 minutes, 600°C for one hour, and then be subjected to thermal shock test with a temperature drop from 600°C to 20°C within 15 seconds.
C. Pressure. The test source shall be twice subjected for at least five minutes to an absolute external pressure of 2 million newtons per square meter.
D. Impact. A 2 kilogram steel weight, 2.5 centimeters in diameter, shall be dropped from a height of 1 meter onto the test source.
E. Vibration. The test source shall be subjected three times for 10 minutes each to vibrations sweeping from 25 hertz to 500 hertz with a peak amplitude of five times the acceleration of gravity. In addition, each test source shall be vibrated for 30 minutes at each resonant frequency found.
F. Puncture. A 50 gram weight and pin, 0.3 centimeter pin diameter, shall be dropped from a height of 1 meter onto the test source.
G. Bend. If the length of the source is more than 15 times larger than the minimum cross-sectional dimension, the test source shall be subjected to a force of 2,000 newtons at its center equidistant from two support cylinders, the distance between which is 10 times the minimum cross-sectional dimension of the source.

Notes

La. Admin. Code tit. 33, § XV-1713
Promulgated by the Department of Environmental Quality, Office of Air Quality and Radiation Protection, Radiation Protection Division, LR 24:2113 (November 1998), amended by the Office of Environmental Assessment, Environmental Planning Division, LR 26:2603 (November 2000).
AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2001 et seq.

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