This comprises a radiation source (5) and radiation detector (3).

The oxygen content is determined on the basis of the radiation detected by the radiation detector.

The blood gas parameter is determined on the basis of the radiation detected by the radiation detector.

A radiation detector (6) detects radiation passing through an inspection object (2) by discriminating it into a different energy levels of the radiation.

A touch-sensitive key has a radiation-propagating prism or plate (2) between a radiation source (1) and a radiation detector (6).

The user's body shields the radiation detector from radiation in at least one direction, thereby providing directionality to the radiation detector.

A radiation source or detector including a nested waveguide structure is provided.

Each controller is operable to receive a radiation signal and identify a radiation source present in a traffic way adjacent to the at least one radiation detector assembly.

Disclosed is a radiation detector wherein battery exchange can be performed easily if necessary.

The invention also relates to an optical analyzer including a sample holder and radiation detector.

The task of becoming a diagnostic radiologist is not an easy one.

A portable, directional radiation detector includes a radiation detector that is positioned proximate a person's body.

The analyte content is determined on the basis of detection of the radiation transmitted from the radiation source through the deformed measuring chamber and the transparent body and to the radiation detector.

Vacuum ultraviolet radiation detection apparatus (10) comprises a radiation detector (30) in a chamber (12).

This system also includes at least one radiation detector configured to detect radiation from the radioactive source.