Sentences with phrase «ionization chambers»

Finally, he advises, use a more advanced detector that uses boron or an ionization chamber.

The six benchmarks are: 1) HDR brachytherapy procedures are supported with the appropriate team as described in the report of the AAPM TG 59 and the American College of Radiology HDR Brachytherapy Practice Standard; 2) commissioning of the treatment unit, treatment planning system and each new source is performed by a qualified medical physicist and verified through a QA process; 3) assay of the HDR brachytherapy unit source is performed using a well - type ionization chamber with a calibration traceable to the National Institute of Standards and Technology, and this assay is performed or confirmed for each source change.

perhaps it helps with the current flow in the ionization chamber.

Not exact matches

It would have to be a process that magnified the tiny effect of the atomic particle itself, as the condensation of droplets in supersaturated vapor magnifies the ionization produced by a particle in a cloud chamber.

Cosmic rays are so penetrating that there's always ionization in our chamber and we can not get to zero ionization.

But the vacuum chamber was not designed to allow lasers in; it was surrounded by metal mesh and intended for thermal ionization, in an oven.

A possible connection between cosmic rays and clouds was already established at the end of the 19th century by the inventor of the cloud chamber, Wilson (1899); it was admittedly «speculation» that ionization in the upper troposphere affected storminess.