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RIS citation export for MOPMR055: Radiation-Resistant Fiber Optic Strain Sensors for SNS Target Instrumentation

AU - Liu, Y.
AU - Blokland, W.
AU - Bryan, J.D.
AU - Rakhman, A.
AU - Riemer, B.W.
AU - Sangrey, R.L.
AU - Strum, R.
AU - Wendel, M.
AU - Winder, D.E.
ED - Petit-Jean-Genaz, Christine
ED - Kim, Dong Eon
ED - Kim, Kyung Sook
ED - Ko, In Soo
ED - Schaa, Volker RW
TI - Radiation-Resistant Fiber Optic Strain Sensors for SNS Target Instrumentation
J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016
C1 - Busan, Korea
T2 - International Particle Accelerator Conference
T3 - 7
LA - english
AB - Measurement of stresses and strains in the mercury target vessel of the Spallation Neutron Source (SNS) is important to understand the structural dynamics of the target. Owing to their compactness, easy system integration, and invulnerability to the electromagnetic interference, fiber optic strain sensors have been installed into the SNS target module starting from the fall of 2015. In this talk, we report on the development of radiation-resistant fiber optic strain sensors for subsequent generations of SNS target instrumentation. The sensors are extrinsic Fabry-Perot interferometers (EFPIs) made from fluorine-doped single-mode fibers. The radiation induced loss of the fiber has been measured in the SNS target 13 at the energy-on-target level exceeding 500 MWhr which results in peak doses on fiber of more than 10⁹ Gy. A superluminescent diode laser at 1300 nm is used as the light source and the strain is measured in real-time using quadrature phase shifted signals generated from a local interferometer. We have demonstrated successful measurements of strains from 1 to 1000 με at a kHz frequency range on a test plate using the developed interrogation optical system.
CP - Geneva, Switzerland
SP - 371
EP - 373
KW - target
KW - radiation
KW - neutron
KW - proton
KW - detector
DA - 2016/06
PY - 2016
SN - 978-3-95450-147-2
DO - 10.18429/JACoW-IPAC2016-MOPMR055
UR - http://jacow.org/ipac2016/papers/mopmr055.pdf
ER -