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thermopneumatic detector definition

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when the radiation incident on a gas in a closed chamber increases the temperature and pressure of a gas, a mirror on the cell wall moves.  This movement is measured optically, and can be used to determine the amount of radiation incident on the cell.

See also:

tetrapyrroles definition
thiyl radicals definition
thiyl radicals definition
threshold limit value (TLV) definition
thiocyanates definition