Extruded scintillator for the Calorimetry applications

Dyshkant, A.; Rykalin, V.; Pla‐Dalmau, A.; Beznosko, D.

doi:10.1063/1.2396992

Cited by 5 publications

(6 citation statements)

References 5 publications

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“…It also results in the reduction of detected light yield on optical sensors. Dyshkant et al reported that the TiO 2 coating on the surface of 1-m extruded triangular strips produced in the Fermi National Accelerator Laboratory (FNAL) substantially reduced the attenuation length from 25.4 cm (bulk scintillator) to 6.4 cm [21]. After gluing a long WLS fiber into the hole of the scintillator, the long and short components of the light attenuation length were measured to ∼ 42 cm and ∼ 31 cm, respectively.…”

Section: Jinst 18 P10034mentioning

confidence: 99%

“…According to the description above, the light collection property of plastic scintillators is crucial in the development of muography detector arrays. Almost all studies focus on the improvement of the detected light yield and the attenuation length of detector units [21][22][23]. The impact of these parameters on the position resolution of detector arrays is seldom investigated.…”

Section: Jinst 18 P10034mentioning

confidence: 99%

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Simulation study of the light collection efficiency and the dependency on position resolution in plastic scintillator-based muography detectors

Wang,

Pan,

Chen

et al. 2023

J. Inst.

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Cosmic-ray muon imaging (muography) has been applied in various fields in recent years, in which plastic scintillators are one of the frequently selected detectors internationally. Therefore, a triangular scintillator strip based muography detection system has been proposed in the development of the μ Scattering and Transmission imaging faCility (μSTC). Before the mass production of detector units, this work studied the impacts of multiple factors on the light collection efficiency (LCE) and the position resolution (σ) of plastic scintillators. These factors include configurations of wavelength shifting (WLS) fibers, fiber grooves on scintillators, coupling optical glues and silicon photomultiplier (SiPM) readout mode. According to the simulated results, an empirical formula was proposed to quantitatively describe the relation between the LCE and σ, which has seldom been studied before. In this formula, σ reduces as a power-law function of the LCE. The SiPM readout mode (single-end or double-end output) and fiber groove treatments show no significant influence on the σ-LCE relation. LCE variations due to different factors lead to a difference in σ of less than 0.2 mm in the whole range of LCE. Accordingly, these factors are nearly equivalent in the improvement of detector position resolution. In comparison, the muon hit position reconstruction method nearly halves the σ after using angular and gap corrections. Thus, a better reconstruction method shows greater importance than the efforts made to increase LCEs. The simulation study in this work will provide good references for the construction of plastic scintillators of the μSTC platform in the near future.

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Section: Jinst 18 P10034mentioning

confidence: 99%

Section: Jinst 18 P10034mentioning

confidence: 99%

Simulation study of the light collection efficiency and the dependency on position resolution in plastic scintillator-based muography detectors

Wang,

Pan,

Chen

et al. 2023

J. Inst.

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“…It should be remembered that the Uniplast strips are thinner (H s = 7 mm instead of 10 mm) and therefore produce less scintillation light, and have two grooves on the upper face rather than a central hole. Furthermore, the composition of the dopant material is different from the FNAL strips [27]. The general requirements are the same.…”

Section: Jinst 9 P11008mentioning

confidence: 99%

Strip detectors for a portal monitor application

et al. 2014

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A design for a new equipment for non intrusive inspection of containers in ports is described. The project involves the construction of a ∼125 m 3 cosmic muon-tracking detector, to measure the deflection of cosmic muons when traversing high-Z materials. The apparatus consists of four X-Y charged particle detector planes, two placed below and two above the container to be inspected. The detection planes are segmented into 300 cm long, 1 cm 2 square plastic scintillating strips with embedded WLS fibers that transport the scintillation light to photo-sensors (SiPMs) at one end of the fiber. Detailed GEANT4 simulations have demonstrated the possibility of reconstructing a 3D image of the container volume in a reasonable amount of time, compatible with the requirements of a fast inspection technique.

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“…In the literature, the effect of the scintillator volume has been previously analyzed in the medical area (dossimetry, radiotherapy) in case of plastics using a beam of cobalt-60 radiation (electrons of 315 KeV and gammas of ∼1 MeV) [13] but also in liquid scintillators radiated with electrons and protons in the MeV range [14] and with pure simulations [15], but as far as we know it has not been analyzed in the astrophysical scenario of a space mission where the energy input covers an extended spectrum and the mass is a critical issue. The effect of the reflective coating has also been analyzed in [2,16,17] and a general discussion could be found in [5]. However, most of the results are based on experimental setups with different geometries, scintillators, primary beams and photo-detectors.…”

Section: Introductionmentioning

confidence: 99%

On the design of experiments based on plastic scintillators using GEANT4 simulations

Ros

Sáez-Cano

Medina‐Tanco

et al. 2018

Radiation Physics and Chemistry

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Plastic scintillators are widely used as particle detectors in many fields, mainly, medicine, particle physics and astrophysics. Traditionally, they are coupled to a photo-multplier (PMT) but now silicon photo-multipliers (SiPM) are evolving as a promising robust alternative, specially in space born experiments since plastic scintillators may be a light option for low Earth orbit missions. Therefore it is timely to make a new analysis of the optimal design for experiments based on plastic scintillators in realistic conditions in such a configuration.We analyze here their response to an isotropic flux of electron and proton primaries in the energy range from 1 MeV to 1 GeV, a typical scenario for cosmic ray or space weather experiments, through detailed GEANT4 simulations. First, we focus on the effect of increasing the ratio between the plastic volume and the area of the photo-detector itself and, second, on the benefits of using a reflective coating around the plastic, the most common technique to increase light collection efficiency. In order to achieve a general approach, it is necessary to consider several detector setups. Therefore, we have performed a full set of simulations using the highly tested GEANT4 simulation tool: several parameters have been analyzed such as the energy lost in the coating, the deposited energy in the scintillator, the optical absorption, the fraction of scintillation photons that are not detected, the light collection at the photo-detector, the pulse shape and its time parameters and finally, other design parameters as the surface roughness, the coating reflectivity and the case of a scintillator with two decay components. This work could serve as a guide on the design of future experiments based on the use of plastic scintillators.

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Extruded scintillator for the Calorimetry applications

Cited by 5 publications

References 5 publications

Simulation study of the light collection efficiency and the dependency on position resolution in plastic scintillator-based muography detectors

Simulation study of the light collection efficiency and the dependency on position resolution in plastic scintillator-based muography detectors

Strip detectors for a portal monitor application

On the design of experiments based on plastic scintillators using GEANT4 simulations

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