Instrumentation, operational shield tests

Documentation of the tests should also be provided by still photography, video camera/recorder systems, and high speed photography. The high speed photography with a minimum speed of 500 frames per second Is necessary to be able to see any flame front exiting a shield. A list of typical Instrumentation used on an operational shield test Is shown on Table II, (see reference A). 

NOTE The P-particle source is 12 mCi of Ni electroplated on an electrode. Even though P-particles penetrate only 8-10 cm of air and the detector cover completely shields the source, in the U.S. this is considered to be a radioactive source and cannot be discarded when the instrument wears out. It must be labeled as being radioactive, it must be tested twice a year by wipe tests, and it must be sent to a licensed operator if it needs cleaning. It must be disposed of separately as a radioactive source and a record kept for its entire lifetime. This is not considered trivial by the U.S. Nuclear Regulatory Commission (NRC), even though common sense indicates otherwise. 

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