Radiation Quantities and Units (I)

Radiation Quantities and Units

The unique radiation exposure conditions that exist in computed tomography (CT), during which thin slices of the patient are irradiated by a narrow, fan-shaped beam of x rays emitted from the x-ray tube during its rotation around the patient, have required the use of special dosimetry techniques to characterize the radiation doses to patients and to monitor CT system performance. This section d...

Radiation Quantities and Units , Dose to the Patients , and Image Quality in Computed Tomography ( CT ) ( RAD UNITS )

Quantities and units in clinical chemistry.

HE COMMISSION ON CLINICAL CHESIIsTEY (CCC) of 1UPACt in 1965 nominated a Subeommission for Standards and Units ill Clinical Chemistry4 Concerning units, the primary task of the subcommission was to study (1) the individual and iiational efforts to counteract the increasingly chaotic use of quantities and units in clinical chemistry; (2) the current usage in related fields of science, especially...

Authoring and Publishing of Units and Quantities in Semantic Documents

This paper shows how an explicit representation of units and quantities can improve the experience of semantically published documents, and provides a first authoring method in this respect. To exemplify the potential and practical advantages of encoding explicit semantics regarding units w.r.t. user experience, we demonstrate a unit system preference service, which enables the user to choose t...

I TABLE II POLYMER UNITS AND THEIR RESISTANCE TO RADIATION Simplified Polymer Unit Threshold Radiation

Magnet coil insulation consists of inorganic materials such as glass fiber, fillers, and organic thermosetting resins. Most of the usual insulation systems are damaged if subjected to high radiation levels such as those anticipated at the Stanford Linear Accelerator, where the expected dose rate may be as high as lOi rads per year. This paper describes tests carried out at SLAC in which several...