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   Neutron Beam Shutter of CSNS White Neutron Source Developed TEXT SIZE: A A A

The neutron beam shutter for the China Spallation Neutron Source (CSNS) expansion project – the back-streaming white neutron source project (Back-n project) -- passed acceptance tests in Hefei on October 12, 2016. The CSNS Chief Engineer, Prof. Qu Huamin, Project Director, Prof. Tang Jingyu, and some other experts from CSNS and the China Institute of Atomic Energy (CIAE) attended the acceptance meeting, and made an on-site inspection.

At the review meeting, Hefei Juneng Ltd reported on "Neutron beam shutter development" and a Back-n project member gave a report on "Neutron beam shutter design". The acceptance panel made a comprehensive and detailed inspection of the technical documents, and the test results on machining accuracy and positioning accuracy. They also made an on-site inspection of the control of the shutter moving parts and vacuum conditions. They agreed that the device meets its acceptance criteria. The CSNS group hopes that Hefei Juneng will complete the transportation as soon as possible and install the device on the CSNS site according to schedule.

The neutron beam shutter is one of the key devices in the Back-n beamline, and its main function is to cut off and collimate the neutron beam. It is also the first completed piece of key equipment for the Back-n project. As one of the five institutions in the Back-n project consortium, CIAE provided the funding for the fabrication of the device.

Neutron Beam Shutter of CSNS White Neutron Source developed(Image by IHEP)

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