PHOTOMULTIPLIER APPARATUS AND RADIATION DETECTOR INCORPORATING SUCH APPARATUS

摘要

A radiation detection apparatus (2) is disclosed. The apparatus includes a housing (20), a window (26) at least partially transparent to electromagnetic radiation in a first wavelength range and a photomultiplier tube (24) for generating an electrical output signal dependent on the intensity of the electromagnetic radiation. A resiliently deformable optical coupling (28) is located between the window and the photomultiplier tube for allowing at least some electromagnetic radiation passing through the window to enter the photomultiplier tube, and a scintillator element 8 converts gamma radiation into visible light in the first wavelength range entering the photomultiplier tube.

主权项

1. A photomultiplier apparatus comprising:
a. a first housing; b. window means mounted to the first housing, the window means being at least partially transparent to electromagnetic radiation of a first wavelength range; c. photomultiplier means provided in the first housing for receiving electromagnetic radiation of said first wavelength range passing through said window means and generating an electrical output signal dependent on the intensity of said electromagnetic radiation; d. sealing means for isolating electrical terminals of said photomultiplier means from said window means; and e. resiliently deformable optical coupling means located between said window means and said photomultiplier means, for allowing at least some electromagnetic radiation of said first wavelength range passing through said window means to enter said photomultiplier means, wherein said resiliently deformable optical coupling means encapsulates an end of the photomultiplier means facing said window means.