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Glossary
Search Glossary Term: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | C Carcinogenic Capable of producing cancer. Chemical form Pure uranium or combined with other elements such as oxygen Class Also referred to as Lung Class or Inhalation Class. A solubility classification scheme for inhaled material which ranks the material according to its rate of clearance from the pulmonary region of the lungs. Materials are classified as D, W, or Y, depending on how fast the material clears the lungs. Class D (days) materials are cleared in less than 10 days. Class W (weeks) materials are cleared between 10 and 100 days. Class Y (years) materials are cleared in more than 100 days. Recent recommendations in the International Commission on Radiological Protection Report 66 have replaced classes D, W, and Y with lung absorption Types F (fast), M (moderate), and S (slow). Committed Dose Equivalent (CDE) The dose equivalent to organs or tissues (targets) of reference that will be received from an intake of radioactive material by an individual during the 50 year period following the intake of the radioactive material, such as DU. Committed Effective Dose Equivalent (CEDE) The sum of the committed dose equivalents to various tissues in the body, each multiplied by its tissue weighting factor. Conexes Storage trailers used to store DU munitions. Also called MILVANs. Congenital Existing at or dating from birth. Creatinine A metabolic waste product in urine that remains relatively constant in an individual and that may be used to establish baseline renal function. Curie (Ci) A unit of radioactivity. One curie is the amount of material in which 3.7 X 1010 atoms transform per second. A unit known as the becquerel (Bq) is also commonly used. One Bq is equal to 2.7 X 10-11 Ci (or 1.0 disintegration per second). The activity of 1 gram of radium is approximately 1 Ci. Several fractions of the curie are in common usage: Millicurie (mCi): One-thousandth of a curie (3.7 X107 disintegrations per second). Microcurie (m Ci): One-millionth of a curie (3.7 X 104disintegrations per second). Picocurie (pCi): One-millionth of a microcurie (3.7 X 10-2 disintegrations per second or 2.2 disintegrations per minute). Return to alphabet |
