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2. Scintillation proximity assay - Wikipedia

   en.wikipedia.org/wiki/Scintillation_proximity_assay

   The SPA method depends on the short pathlength of tritium-released beta particles. For instance, the decay of a Tritium atom releases a beta particle, which is well-suited to SPA due to a very short (1.5 μm) path length through water. So, when the β-particle is within 1.5 μm of the scintillant bead, there is sufficient energy to stimulate ...

3. Single photon absorptiometry - Wikipedia

   en.wikipedia.org/wiki/Single_photon_absorptiometry

   Single photon absorptiometry (SPA) was developed in 1963 by Steichen et al. In 1976, it was an important tool for quantifying bone mineralization in infants. The single photon absorption method operates when a certain amount of gamma rays emitted by isotopes, pass through human tissues.

4. Water detector - Wikipedia

   en.wikipedia.org/wiki/Water_detector

   A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage. A common design is a small cable or device that lies flat on a floor and relies on the electrical conductivity of water to decrease the resistance across two contacts.

5. Leak detection - Wikipedia

   en.wikipedia.org/wiki/Leak_detection

   Methods of detection include hydrostatic testing, tracer-gas leak testing, infrared, laser technology, and acoustic or sonar technologies. Some technologies are used only during initial pipeline installation and commissioning, while other technologies can be used for continuous monitoring during service.

6. Water testing - Wikipedia

   en.wikipedia.org/wiki/Water_testing

   Water testing being conducted at a treatment facility in Broken Bow, Oklahoma. Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety. [1] Testing may be performed to evaluate:

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!