Abstract
To better understand the mechanical impact of the proton beam on the lifetime on Spallation Neutron Source (SNS*) mercury-filled, stainless steel targets, these targets are now instrumented with optical and metal strain sensors, temperature sensors, and accelerometers. The strain and temperature sensors are placed inside the target vessel, between the water shroud and mercury vessel, while the accelerators are placed outside on the target mount and on the mercury return line. We now have data from four targets. The first instrumented target used regular multimode optical sensors, while later targets have used radhard multimode sensors. We are also developing super-radhard single-mode optical strain sensors to get data further into the production cycle. In this paper, we describe the data-acquisition system, compare the measured strain to the simulated strain for the different targets, estimate the survivable radiation level for each type of sensor, and discuss the implications of the results on the lifetime of the target.
| Original language | English |
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| Title of host publication | IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference |
| Publisher | Joint Accelerator Conferences Website - JACoW |
| Pages | 1230-1233 |
| Number of pages | 4 |
| ISBN (Electronic) | 9783954501823 |
| State | Published - Jul 2017 |
| Event | 8th International Particle Accelerator Conference, IPAC 2017 - Bella Conference Center, Denmark Duration: May 14 2017 → May 19 2017 |
Publication series
| Name | IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference |
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Conference
| Conference | 8th International Particle Accelerator Conference, IPAC 2017 |
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| Country/Territory | Denmark |
| City | Bella Conference Center |
| Period | 05/14/17 → 05/19/17 |
Funding
This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC0500OR22725 with the U.S. Department of Energy. This research was supported by the DOE Office of Science, Basic Energy Science, and Scientific User Facilities. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for the United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). *This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC0500OR22725 with the U.S. Department of Energy. This research was supported by the DOE Office of Science, Basic Energy Science, and Scientific User Facilities. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for the United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). † [email protected]