Strip detectors for a portal monitor application

Russo, Giovanni; Presti, D. Lo; Bonanno, D.; Indelicato, V.; Leonora, E.; Longhitano, F.; Pugliatti, C.; Randazzo, N.; Riggi, F.; Santagati, G.; Zappalà, G.; Blancato, A.

doi:10.1088/1748-0221/9/11/p11008

Cited by 12 publications

(8 citation statements)

References 27 publications

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“…In comparison, the solid state detectors using plastic scintillator with high detection efficiency are relatively cheap and robust, especially easy to construct a large-area detector. Although the position resolution achieved by current plastic scintillation detectors is not as good as gaseous detectors, it is now possible to be improved to millimeter resolution using a special geometric design [9], which has extended their applications to the field of scattering imaging, such as the CRIPT project [10], the Muon-Portal project [11] and the LUMIS [12]. In addition, silicon photomultipliers (SiPMs) are replacing the traditional photomultiplier tube (PMT) in scintillation detectors.…”

Section: Jinst 19 P02033mentioning

confidence: 99%

Electronics design for a muon imaging system using triangular plastic scintillators with WLS fiber readouts

Wang,

et al. 2024

J. Inst.

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Muon imaging technology has developed rapidly over the past decades with extensive applications. In many cases, plastic scintillator detectors are preferred because of their high cost performance, ease of processing and robustness in harsh environments. To reduce imaging time and improve imaging quality, detectors tend to have large areas and high position resolutions. The challenge to the electronics for such detectors is to maintain the scale of electronics acceptable while improving the high position resolution of the detector. In this paper, the basic detector unit is a triangular strip of plastic scintillator, each embedded with two wavelength-shifting (WLS) fibers read out by the silicon photomultipliers (SiPMs). Since the hit position of muon on the detector is determined by the splitting ratio of the scintillation light on two adjacent scintillator strips, it is necessary the readout electronics has high linearity and low noise. The possibility of the electronics channel multiplexing on the same detector plane is fully explored so that four WLS fibers can be read out by one SiPM realizing 2:1 readout channel compression. Furthermore, since multiple electronics modules are connected by a daisy chain structure, the electronics system is very scalable with its data acquisition system (DAQ) independent of detector size. In addition to detailing the position encoding readout scheme, the design of electronics module and the DAQ system, the electronics system has been implemented and applied to a prototype detector for performance evaluation. Using scintillator strips with 11 mm pitch size, the position resolution of the detector reaches 1.49 mm, which demonstrates that the designed electronics is suitable for the new detector structure, and the combination of the two has a good application prospect in muon imaging.

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Section: Jinst 19 P02033mentioning

confidence: 99%

Electronics design for a muon imaging system using triangular plastic scintillators with WLS fiber readouts

Wang,

et al. 2024

J. Inst.

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“…The overall number of channels (fibers and photosensors) is 9600. Extensive tests of the individual strips and WLS fibres have been reported in previous papers [16,17].…”

Section: The Detection Modulesmentioning

confidence: 99%

“…As part of a local project we have built a full-scale prototype (18 m 2 sensitive area) of a muon tomograph with all features to be potentially employed for the inspection of a standard Twenty-Foot Equivalent (TEU) container, a volume of about 6 m × 2.4 m × 2.6 m. A description of this facility and several aspects of its construction and test have been reported in previous papers [12][13][14][15][16][17][18][19][20][21][22]. The main aim of this project was to explore all the main aspects of a large-scale installation for muon tomography, especially the ones related with building a detector with a large sensitive area and a modular structure, operating a large number of photosensors and electronic channels (O(10 4 )), controlling the data flow and the operational conditions even by remote, testing simulation procedures of the entire setup and comparing different reconstruction and imaging strategies.…”

Section: Introductionmentioning

confidence: 99%

Multiparametric approach to the assessment of muon tomographic results for the inspection of a full-scale container

et al. 2021

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Experimental results from a dataset collected with a full-scale muon tomograph for the inspection of cargo containers were studied in a single scattering scenario with a multiparametric analysis based on the method of the Point Of Closest Approach (Poca). To search for high-Z materials, a 4 $$\hbox {dm}^3$$ dm 3 Pb block was positioned inside the volume to be inspected, in order to quantitatively investigate the appearance of the Poca signal. Signal-to-noise ratio and significance of the Poca signal were investigated by means of mono-dimensional spectra of the Poca components, for different values of the scattering angle between the incoming and outgoing muon tracks and with different angle-dependent weights. A systematic scan of two-dimensional maps was also carried out, as a strategy to search for possible enhancements to the Poca signal. A comparison was also done between the results obtained from the two half-volumes, one containing the Pb block and one left empty, to take into account the response of the detector and some aspects of the Poca strategy.

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“…Extensive tests of the individual strips and WLS fibres have been done and are reported in a previous paper [7].…”

Section: The Detection Modulesmentioning

confidence: 99%

“…A considerable amount of simulations and experimental tests on the individual components (scintillators, WLS fibres, photosensors, frontend electronics,...) have been already done. Different reconstruction and visualization algorithms have been implemented and have demonstrated the feasibility of this Project, with several papers reporting specific aspects [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

The Muon Portal Project: A large-area tracking detector for muon tomography

Riggi

2016

EPJ Web of Conferences

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The Muon Portal Project [1] is a joint initiative between research and industrial partners, aimed at the construction of a real size detector protoype to search for hidden high-Z fissile materials inside containers by the muon scattering technique. The detector is based on a set of 48 detection modules (1 m × 3 m), so as to provide four X-Y detection planes, two placed above and two below the container to be inspected. After a research and development phase, which led to the choice and test of the individual components, the construction of the full size detector has already started and will be completed in a few months. IntroductionAn estimate of about 200 million containers are traveling each year through the custom borders of many countries. They are in principle potential sources of small quantities of hidden nuclear material, such as fissile elements. As an alternative to traditional systems based on X-ray inspection it has been long suggested [2] to employ the scattering process of the secondary cosmic muons, which strongly depends on the atomic number of the traversed material, hence particularly sensitive to high-Z fissile elements. For a detection system employing such technique (muon tomography) a large area muon detector is required, to reconstruct the muon tracks with good angular resolution before and after traversing the container volume. 201, 05003 (2016) EPJ Web of Conferences

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Strip detectors for a portal monitor application

Cited by 12 publications

References 27 publications

Electronics design for a muon imaging system using triangular plastic scintillators with WLS fiber readouts

Electronics design for a muon imaging system using triangular plastic scintillators with WLS fiber readouts

Multiparametric approach to the assessment of muon tomographic results for the inspection of a full-scale container

The Muon Portal Project: A large-area tracking detector for muon tomography

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