Dual integrator for a radiation detector
US4486663A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1982 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | May 10, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/1642
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Improved detection circuitry is disclosed for calculating the position on the crystal of a scintillation event in a scintillation camera. Electrical signals developed by photomultiplier tubes for successive events are weighted by a resistor matrix and transferred to integrators which develop event position signals based on the quanta of radiation incident on the scintillation crystal. To improve the count rate without sacrificing the resolution, parallel integrators are provided so that a second integrator can integrate electrical signals from a second scintillation event during the time that a first integrator is processing the signals from a first scintillation event. Common storage buffers are connected to the integrators to hold the integrated signals for further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.