6533b85cfe1ef96bd12bcabe
RESEARCH PRODUCT
A calorimeter for the precise determination of the activity of the 144Ce-144Pr anti-neutrino source in the SOX experiment
A. TrantelG. TesteraPaolo SaraccoMatteo AgostiniH. HessM. NieslonyJ. MartynLothar OberauerTobias LachenmaierMarco PallaviciniMarco PallaviciniR. CeresetoRiccardo MusenichS. AppelK. AltenmüllerL. PappS. WeinzStefania FarinonA. CaminataS. RottenangerL. Di NotoL. Di NotoC. RossiBirgit NeumairMichael WurmLuigi CappelliS. SchönertSandra ZavatarelliM. Gschwendersubject
PhysicsRadiation monitoringPhysics::Instrumentation and Detectors010308 nuclear & particles physicsDetector01 natural sciencesParticle detectorCalorimeterNuclear physicsCalorimetersNeutrino detectorMockup0103 physical sciencesHigh Energy Physics::ExperimentNeutrinoCalorimeters; Radiation monitoring; Instrumentation; Mathematical Physics010306 general physicsNeutrino oscillationInstrumentationMathematical PhysicsBorexinodescription
We describe the design and the performance of a high precision thermal calorimeter, whose purpose was the measurement of the total activity of the 144Ce-144Pr anti-neutrino source of the SOX (Short distance neutrino Oscillation with BoreXino) experiment. SOX aimed at the search for eV-scale sterile neutrinos by means of the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy and of a very powerful artificial anti-neutrino source located at 8.51 m from the detector center. In order to obtain the required sensitivity, the activity of the source (approximately 150 kCi) had to be known at 1% precision. In this work we report the design of the experimental apparatus and the results of calibration measurements performed with an electrical mockup of the source. We show that the calorimeter sensitivity exceeds design goals, reaching a precision of a few %.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-09-12 | Journal of Instrumentation |