Silicon avalanche photodiodes are capable of achieving and sustaining higher gain than traditional APDs because they are fabricated using a deep diffused planar manufacturing process. Our APDs have a high quantum detection efficiency, a wide spectral response, are compact, and are rugged. APDs are also insensitive to magnetic fields, unlike photomultiplier tubes, which allows them to be used in hybrid PET/MRI systems. They are available in discrete devices, arrays, and position sensitive structures. Dynasil produces avalanche photodiodes (APDs) through RMD. Please contact RMD directly to discuss your avalanche photodiode needs.
Photodetectors convert light into voltage or current. They are used in many applications including medical imaging, radiation detection, x-ray detection and infrared imaging. Dynasil designs and manufactures photodetectors through our company, RMD. RMD produces two types of photodetectors, avalanche photodiodes and solid state photomultipliers.
Solid State, Silicon Photomultiplier (SPM) detectors are the preferred choice for applications such as high energy physics, radiation detection, PET/MRI, confocal microscopy, cytometry and spectroscopy. In particular, the SPM has been shown to be a key technology enabler in applications that reside in environments which are detrimental to the operation of current PMT technology. Dynasil has developed large area SSPM’s using wide-band-gap semiconductor materials. These materials provide low dark noise, are radiation hard, and have a high sensitivity in the blue to UV spectrum. These photodetectors also provide large gains (~105-106), an important characteristic for detecting low signals from scintillation materials. Our SSPM features include:
- Independent readout of each sub-array
- Completely protected; scintillator mount ready
- Tiling is possible without custom design using the chip-scale packaging
- One silicon die per device – minimizing dead space between die when tiling
- Energy resolution with LYSO Scintillator on 1 cm2 SSPM is 13% at 511 keV
Dynasil manufactures solid state photomultipliers through RMD. Please contact RMD directly to discuss your SSPM needs.