Luminosity measurement at ATLAS—Development, construction and test of scintillating fibre prototype detectors

Ask, S.; Barrillon, P.; Braem, A.; CHEIKLALI, C.; Efthymiopoulos, I.; Fournier, D.; Taille, C. De La; Girolamo, B. Di; Grafström, P.; Joram, C.; Haguenauer, M.; Hedberg, V.; Lavigne, B.; Maio, A.; Mapelli, A.; Mjörnmark, U.; Puzo, P.; Rijssenbeek, M.; Santos, Jorge A.; Saraiva, J. G.; Stenzel, H.; Thioye, M.; Valladolid, E.; Vorobel, V.

doi:10.1016/j.nima.2006.07.008

Cited by 23 publications

(15 citation statements)

References 2 publications

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“…This is less than expected since up to 60 % higher trapping efficiency could be theoretically obtained with double-clad fibres compared to single-clad fibres. Similar small beneficial effect has been observed when comparing squared fibers in other measurements (see [13] for example).…”

Section: Optical Fibressupporting

confidence: 83%

Optimisation of the scintillation light collection and uniformity for the SoLid experiment

et al. 2018

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A : This paper presents a comprehensive optimisation study to maximise the light collection efficiency of scintillating cube elements used in the SoLid detector. Very short baseline reactor experiments, like SoLid, look for active to sterile neutrino oscillation signatures in the anti-neutrino energy spectrum as a function of the distance to the core and energy. Performing a precise search requires high light yield of the scintillating elements and uniformity of the response in the detector volume. The SoLid experiment uses an innovative hybrid technology with two different scintillators: polyvinyltoluene scintillator cubes and 6 LiF:ZnS(Ag) screens. A precision test bench based on a 207 Bi calibration source has been developed to study improvements on the energy resolution and uniformity of the prompt scintillation signal of antineutrino interactions. A trigger system selecting the 1 MeV conversion electrons provides a Gaussian energy peak and allows for precise comparisons of the different detector configurations that were considered to improve the SoLid detector light collection. The light collection efficiency is influenced by the choice of wrapping material, the position of the 6 LiF:ZnS(Ag) screen, the type of fibre, the number of optical fibres and the type of mirror at the end of the fibre. This study shows that large gains in light collection efficiency are possible compared to the SoLid SM1 prototype. The light yield for the SoLid detector is expected to be at least 52±2 photo-avalanches per MeV per cube, with a relative non-uniformity of 6 %, demonstrating that the required energy resolution of at least 14 % at 1 MeV can be achieved.

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Section: Optical Fibressupporting

confidence: 83%

Optimisation of the scintillation light collection and uniformity for the SoLid experiment

et al. 2018

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“…The attenuation length of the liquid scintillator EJ-305 is reported by Eljen Technology to be in the order of 3 m. One can safely assume that there is virtually no attenuation along the 2 cm long channels and that the transmission efficiency ε att is about 0.99. Around 425 nm, the wavelength of maximum emission of the liquid scintillator, the quantum efficiency of the photomultiplier tube ε Q eff is estimated to be about 0.14 [14]. The equation leads toN pe 1.7.…”

Section: Resultsmentioning

confidence: 99%

Scintillation particle detection based on microfluidics

Mapelli

Gorini

Haguenauer

et al. 2010

Sensors and Actuators A: Physical

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a b s t r a c t A novel type of particle detector based on scintillation, with precise spatial resolution and high radiation hardness, is being studied. It consists of a single microfluidic channel filled with a liquid scintillator and is designed to define an array of scintillating waveguides each independently coupled to a photodetector. Prototype detectors built using an SU-8 epoxy resin have been tested with electrons from a radioactive source. The experimental results show a light yield compatible with the theoretical expectations and confirm the validity of the approach.

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“…Cross talk in adjacent fibres or MAPMT channels fakes signals which degrade the performance of a tracking detector. The first measurement of cross talk measurements was based on the early DESY data [8]. Later, measurements with cosmic particles and SPS test beams were done with final detectors and front-end electronics.…”

Section: Cross Talkmentioning

confidence: 99%

The ALFA Roman Pot detectors of ATLAS

Khalek¹,

Allongue²,

Anghinolfi³

et al. 2016

J. Inst.

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The ATLAS Roman Pot system is designed to determine the total proton-proton crosssection as well as the luminosity at the Large Hadron Collider (LHC) by measuring elastic proton scattering at very small angles. The system is made of four Roman Pot stations, located in the LHC tunnel in a distance of about 240 m at both sides of the ATLAS interaction point. Each station is equipped with tracking detectors, inserted in Roman Pots which approach the LHC beams vertically. The tracking detectors consist of multi-layer scintillating fibre structures readout by Multi-Anode-Photo-Multipliers.

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Luminosity measurement at ATLAS—Development, construction and test of scintillating fibre prototype detectors

Cited by 23 publications

References 2 publications

Optimisation of the scintillation light collection and uniformity for the SoLid experiment

Optimisation of the scintillation light collection and uniformity for the SoLid experiment

Scintillation particle detection based on microfluidics

The ALFA Roman Pot detectors of ATLAS

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