Single photon detection Planacon

The Planacon™ family of products are square-shaped MCP-PMTs designed to capture fast timing events such as those found in single photon counting applications.

Specialized Medical Imaging
Cherenkov – RICH, TOF, TOP, DIRC
High Energy Physics Detectors
Homeland Security
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Technical information

Type Anode Square MCP-PMT
Mini PLANACON XPM85112 4x4 25mm 10µm
PLANACON XP85122 32x32 53mm 10µm
PLANACON XP85112 8x8 53mm 10µm
PLANACON XP85022 32x32 53mm 25µm
PLANACON XP85012 8x8 53mm 25µm




Planacons provide superior immunity to magnetic influence, down to 2T, while providing high quality images. Photonis' Planacon brings all the high speed, single photon counting features of a traditionally round MCP-PMT while providing a square sensor, allowing multiple sensors to be tiled together to image large areas.

Plancons can be ordered in two sizes, 53mm2 and 27mm2 with a choice of photocathodes to optimize your spectral requirements. Larger Planacons are ideal for use in high energy physics applications to monitor and measure photon activity over a large area.  Miniature Planacons can be used in medical devices such as PET scan units. Planacons are also radiation hardened, making them useful in space exploration.

We now also offer a high voltage resistive divider network as a safe way to power your Planacon detector and avoid mis-wiring. The schematic corresponds to the recommended voltage divider in the Planacon datasheet. We use only high quality components, heavily overspecified on high voltage ratings, and the exposed contacts potted in a high voltage grade compound. You can power it through a standard SHV connector (at the far end), while the connection with the Planacon goes through a 5-pin Lemo high voltage connector (visible in front).

Did you know?

Photonis also manufactures Planacon, a square-shaped MCP-PMT which can be tiled together to acquire a larger image.

Miniature Planacons are also available for medical imaging applications, such as PET scanning.


Related applications

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