A Search for Evidence of the Radioactive Decomposition of by Rachel Ruth Comroe

By Rachel Ruth Comroe

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Rem Abbreviation for “roentgen equivalent man”. It is the biological effect of absorbing one roentgen. 083 × 109 ion-pairs in 1 cubic centimeter of air. It is a level of energy equal to 1 esu or 83 ergs. sievert A unit of radiation dose equal to 100 rem. Saudi Aramco DeskTop Standards 36 Engineering Encyclopedia Laboratory Radioactive Scales spectral analysis Identifying substances by the characteristic energy or wave length of the γ-rays they emit. survey meter Small, portable meters, usually of the ion chamber type, used to detect and measure higher levels of radiation.

The process equipment will require decontamination prior to reassembly by mechanics. This is accomplished in place for large equipment by high pressure jets of water operated by protected personnel under the supervision of a radiation health specialist. Personnel should be protected by washable or disposable outerwear including coveralls, breathing apparatus, gloves, shoe coverings, and head coverings. Outerwear should be disposed in an approved manner, or personnel should shower in their protective clothing until decontaminated.

If decontamination is not practical, the equipment can be stored in a remote, protected area with suitable posting. In some areas, contaminated pipe and equipment can be scrapped by licensed companies that have access to approved decontamination and dump sites. The most desirable form of decontamination is by solvents where possible. Exposure to radioactive dusts is avoided, and it is usually not necessary for anyone to enter the equipment. Spent solvents can be injected in a well for disposal.

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