TITLE

Room-temperature liquid dielectrics for high-energy x-ray tomography

AUTHOR(S)
Lepert, S.
PUB. DATE
November 1990
SOURCE
Review of Scientific Instruments;Nov90, Vol. 61 Issue 11, p3456
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The purpose of this study considers the possibility to use room-temperature liquid dielectrics for computed x-ray tomography (250-keV average energy). For this application, the most important consequence of a device, using a room-temperature liquid dielectric as detector in the ionization chambers, will be the lowering of the cost by removing some present technological constraints (cryogenics, high pressure). The studied liquids are tetramethylsilane (C4H12Si, TMS), tetramethylgermanium (C4H12Ge, TMGe), and tetramethyltin (C4H12Sn, TMSn). Experimental results are presented to characterize these room-temperature liquid dielectrics with x rays. The liquid, which has the most interesting characteristics for x-ray detection (low dark current, high ionization current, high ionic mobility, low average energy to generate electron-ion pairs), is tetramethylgermanium. Its use in an industrial tomographic device is then possible.
ACCESSION #
9786130

 

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