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  • Photomultiplier Connector Sums Pixel Output

May 2008
SensLRequest Info
• 1.3 x 1.3-cm total active area
• <1-mm source-detector distance
• 30-V bias voltage operation

SenseL_spmplus_NEW_edited_2.jpgSensL has launched the SPMPlus, a large-area version of the company’s silicon photomultiplier detectors. A viable solid-state alternative to large-area analog photomultiplier tubes, the device’s 1.3 × 1.3-cm total active area is achieved with a transparent glass substrate and connector design that allows the array of individual silicon photomultiplier pixel signals to be summed as a single output. The detector features include a <1-mm working distance between the source and the detector surface, 30-V bias voltage operation, magnetic insensitivity and high tolerance to ambient light. The company’s biasing circuitry ensures onset times <10 ns and recovery time <60 ns. The device achieves 106 gain and a gain stability comparable to that of traditional photomultiplier tubes. Applications include nuclear medicine, environmental monitoring, fluorescence spectrometry and imaging, and microarray imaging.


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