Design Validation Test Stand Guide Inserts for the Spallation Neutron Source

摘要

Successful operation of the Spallation Neutron Source (SNS) Facility in Oak Ridge, Tennessee, depends on providing guide systems that channel neutrons to each experimental instrument position with a minimum loss in flux. These guide systems originate approximately 1m from the moderator and pass through Shutter Gates. The guide sections passing through the Shutter Gate, called Shutter Inserts, align with features separate from the Shutter Gate. These features are located on the first guide section called the Core Vessel Insert. This arrangement accommodates accurate alignment of the guide system without requiring accurate alignment of the heavy Shutter Gate. These Core Vessel and Shutter Inserts are being developed for the SNS Facility and will be tested in the Design Validation Test Stand (DVTS). This paper addresses the DVTS Core Vessel and Shutter Inserts.