Hamamatsu R446 Photomultiplier Tube

Hamamatsu R446 Photomultiplier Tube

The Hamamatsu R446 Photomultiplier Tube is a 28 mm, nine-stage, side-on photomultiplier tube with a multialkali photocathode. Hamamatsu specifies the R446 for broad-band spectrophotometers, atomic absorption spectrophotometers, chromatographs, NOx analyzers, and other precision photometric instruments. Its broad spectral response makes the device suitable for optical detection where weak light signals must be converted into an electrical signal.

Photomultiplier tubes use a photocathode and dynode structure to convert incident photons into amplified electrical output. The R446 uses a UV-transmitting glass envelope to extend sensitivity into the ultraviolet and provides a spectral response extending from ultraviolet through near-infrared wavelengths. Its nine-stage circular-cage structure is part of the device’s electron-multiplication architecture.

Key Features

• Hamamatsu R446 multialkali photomultiplier tube.
• 28 mm (1-1/8 inch) diameter side-on construction.
• Nine-stage dynode structure.
• UV-transmitting glass window.
• Broad UV-to-near-infrared spectral response.

Technical Specifications

• Spectral Response: 185 to 870 nm.
• Wavelength of Maximum Response: 330 nm.
• Photocathode: Multialkali.
• Minimum Effective Area: 8 ? 24 mm.
• Window Material: UV glass.
• Dynode Structure: Circular-cage.
• Number of Stages: 9.
• Base: 11-pin base, JEDEC No. B11-88.
• Operating Ambient Temperature: -30 to +50 ?C.
• Storage Temperature: -30 to +50 ?C.

Applications

The R446 is intended for optical detection in analytical instruments including broad-band spectrophotometers, atomic absorption systems, chromatographic detectors, NOx analyzers, and other precision photometric equipment. Its spectral response and photomultiplier architecture make it relevant to applications where sensitive detection of optical signals is required.

The listed specifications are manufacturer specifications for the R446 model. They do not establish the gain, dark current, calibration, or operational condition of the individual tube offered for sale.

Additional Benefits

• Local pickup available in Houston, Texas.
• Free shipping on select products within the USA.
• International shipping via FedEx available upon request.

Contact us today to request a customized quote and help ensure your laboratory or industrial workflow operates efficiently using the Hamamatsu R446 Photomultiplier Tube.