A graphite transmission ionization chamber.
A pancake-type transmission chamber made of high-purity graphite and open to the atmosphere has been designed and constructed at the Secondary Standard Dosimetry Laboratory (SSDL-Rio de Janeiro). Tests performed on the chamber following the International Electrotechnical Commission recommendations indicate that its performance characteristics are comparable to those expected from a secondary standard ionization chamber.
Instituto de Radioproteção e Dosinetria, Comissão Nacionai de Energia Nuclear, Rio de Janeiro, Brazil.
C
C
Austerlitz
C H
CH
Sibata
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de Almeida
D003037:Cobalt Radioisotopes; D006108:Graphite; D006801:Humans; D011829:Radiation Dosage; D011867:Radioisotope Teletherapy / Q000295:instrumentation; D011878:Radiotherapy / Q000295:instrumentation*; D011879:Radiotherapy Dosage
D003037:Cobalt Radioisotopes; D006108:Graphite