Microstructure photomultiplier assembly

H - Electricity – 01 – J

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01J 43/02 (2006.01) H01J 40/00 (2006.01) H01J 43/12 (2006.01)

Patent

CA 2684811

The subject invention provides for a novel photomultiplier assembly, termed the Microstructure Photomultiplier Assembly (MPA), which enables the effective conversion of light signals (received at the front of the assembly) into readily-detectable electrical signals. The MPA comprises a photocathode (which converts light into electrons and which is located in front of or on the front surface of the assembly), followed by an electron-multiplying plate, or series of plates, each made from an insulating substrate which does not emit sufficient contaminants to poison the photocathode. Each plate is coated on the front and rear faces with a conductive layer. In addition, the front face of each plate is further coated with a layer of secondary electron-emissive material which, when struck by an incoming electron, can produce secondary electrons. Each plate is perforated with channels (with non-conducting walls) and the number and geometry of these channels is designed to promote the efficient transfer and acceleration of electrons through the channel, under an applied voltage differential across the plate(s). The number of plates placed in series is determined by the desired degree of electron multiplication. At the exit of the last plate, an anode is located to collect the electrons and generate an electrical signal that can be read by conventional electronics. The anode can be a simple anode or can be a position-sensitive anode. The spacing between the photocathode, the electron- multiplying plates, and the anode is selected to promote the efficient transfer and acceleration of electrons across the assembly, as well as to promote the efficient production of secondary electrons. The photocathode, electron-multiplying plate(s) and anode are all contained within a vacuum enclosure.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Microstructure photomultiplier assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microstructure photomultiplier assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microstructure photomultiplier assembly will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1356429

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.