FNAL-NICADD Extruded Scintillator

Beznosko, D.; Bross, A.; Dyshkant, A.; Rykalin, V.

doi:10.1109/nssmic.2004.1462328

Cited by 16 publications

(17 citation statements)

References 6 publications

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“…It is an inexpensive scintillator with emission in the blue, with a good yield of light, a rather fast response (τ ∼ few ns) and a good radiation resistance (5% degradation after a dose of 10 4 Gy gamma irradiation). The bars, produced by FNAL-NICADD [6], have a cross section in the shape of an isosceles triangle with base 33 mm and height 17 mm (figure 2 on the left) and carry a co-extruded TiO 2 coating 0.25 mm thick. The bars, arranged next to each other in the way indicated in figure 2, centre, allow to realize a plane counter 17 mm thick, essentially with no fractures for tracks that pass through it.…”

Section: Basic Elementsmentioning

confidence: 99%

CHANTI: a fast and efficient charged particle veto detector for the NA62 experiment at CERN

et al. 2016

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The design, construction and test of a charged particle detector made of scintillation counters read by Silicon Photomultipliers (SiPM) is described. The detector, which operates in vacuum and is used as a veto counter in the NA62 experiment at CERN, has a single channel time resolution of 1.14 ns, a spatial resolution of ∼ 2.5 mm and an efficiency very close to 1 for penetrating charged particles.

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Section: Basic Elementsmentioning

confidence: 99%

CHANTI: a fast and efficient charged particle veto detector for the NA62 experiment at CERN

et al. 2016

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“…The basic building block of the CHANTI is a scintillator bar in form of a triangular prism similar to the ones used in the D0 pre-shower detectors [9] and in the MINERVA experiment [10]. It is produced at the NICADD-FNAL extruded scintillator facility [11] and consists of an extruded polystyrene core (Dow Styron 663 W) doped with blueemitting fluorescent compounds (PPO 1% by weight and POPOP 0.03% by weight) and a co-extruded T iO 2 coating (0.25 mm thick) for reflectivity. The cross-section of the bar is a isosceles triangle with a base 33 mm and height of 17 mm, with a hole placed at 8.5 mm from the base .…”

Section: Chanti Designmentioning

confidence: 99%

The Charged Anticounter for the Na62 Experiment at Cern

Ambrosino¹,

Capussela²,

Filippo³

et al. 2014

Astroparticle, Particle, Space Physics and Detectors for Physics Applications

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The NA62 experiment at CERN aims at the very challenging task of measuring with 10% relative error the Branching Ratio of the ultra-rare decay K + → π + νν, which is expected to occur only in about 8 out of 10 11 kaon decays. This will be achieved by means of an intense hadron beam, an accurate kinematical reconstruction and a redundant veto system for identifying and suppressing all spurious events. In particular, beam induced background, caused by inelastic interactions of the hadron beam with the Si based detector which measures kaon momentum (the so called Gigatracker, GTK) can mimic the signal in case only one pion is detected downstream. To suppress this background we have designed the so called CHarged ANTIcounter (CHANTI) i.e. a series of six guard counters, to be operated in vacuum and covering a wide angular region downstream the last GTK station. CHANTI must have time resolution ∼1 ns, must be highly efficient in detecting charged particles and must cope with rates which in the inner part can be some kHz/cm 2 . We have adopted a solution based on triangularly shaped scintillator bars coupled with fast wavelength shifting fibers and individually read by means of Silicon Photomultipliers (SiPM). The full scale prototype of one counter has been built and tested using a prototype front end electronic board which allows fast amplification and individual channel fine bias setting with O(mV) resolution and 0.1% stability. We show first results on the response of the detector to minimum ionizing particles as well as on its time resolution, which are well in line with the specifications.

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“…For the scintillator-based hadron calorimeter, the thickness of about 5 mm is both reasonable and available from extrusion process [8]. Moreover, the 10-cm-wide strips are available and can be co-extruded with up to ten holes [8].…”

Section: Three Implemented Cell Formation Geometriesmentioning

confidence: 99%

“…In this way, usage of clear fiber can be avoided completely, WLS fibers are used in the minimum amount and fiber routing problems are avoided. In the future, scintillating elements can be produced by extrusion process [8]. This note reports on the first promising indication for the similar cell performance with machining grooves that were tested using 90 Sr radioactive source by measuring current and rate.…”

Section: Introductionmentioning

confidence: 98%