14-15 January 2013
Asia/Tokyo timezone

A new design of large area MCP-PMT for the next generation neutrino experiments

15 Jan 2013, 10:35
20m
Photo-Detector and Support Photodetectors

Speaker

Prof. Yuekun Heng (Experimental Physics Center, Institute of High Energy Physics)

Description

The next generation neutrino experiments call for significantly increasing the total detector volume. Inexpensive PMTs with large size and high efficiency photocathode are needed in order for these experiments to become reality. We have developed a conceptual design of large focusing type PMT aiming for improving the PMT photon detection efficiency. The transmission photocathode coated on the front hemisphere and the reflection photocathode coated on the rear hemisphere are assembled in the same glass envelope to form nearly 4π viewing angle to enhance the efficiency of the photoelectron detection. The two sets of small MCP units replace the traditional dynodes in the center of the big glass pulp. The photoelectrons from the 4π photocathode are collected and amplified by the two sets of MCP units. Some calculations about the photon-electron moving and collecting are introduced. And the prototypes of this kinds of PMT are being made in China.

Primary author

Prof. Yuekun Heng (Experimental Physics Center, Institute of High Energy Physics)

Presentation Materials

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