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Attenuation length measurements of liquid scintillator with LabVIEW and reliability evaluation of the device

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arxiv 1305.1471 v1 pith:TZGDV6FX submitted 2013-05-07 physics.ins-det hep-ex

Attenuation length measurements of liquid scintillator with LabVIEW and reliability evaluation of the device

classification physics.ins-det hep-ex
keywords deviceattenuationlengthexperimentgd-lslabviewliquidmeasurement
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The attenuation length measuring device was constructed by using oscilloscope and LabVIEW for signal acquisition and processing. The performance of the device has been tested with a variety of ways, the test results show that the set-up has a good stability and high precision (sigma/mean reached 0.4 percent). Besides, the accuracy of the measurement system will decrease by about 17 percent if a filter is used. The attenuation length of gadolinium-loaded liquid scintillator (Gd-LS) was measured as 15.10 plus or minus 0.35 m where Gd-LS was heavily used in Daya Bay Neutrino Experiment. In addition, one method based on the Beer-Lambert law was proposed to investigate the reliability of the measurement device, the R-square reached 0.9995. Moreover, three purification methods for Linear Alkyl Benzene (LAB) production were compared in the experiment.

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