Measurement of gamma quantum interaction point in plastic scintillator with WLS strips

Smyrski, J.; Alfs, D.; Bednarski, T.; Białas, P.; Czerwiński, E.; Dulski, K.; Gajos, A.; Głowacz, B.; Gupta-Sharma, N.; Gorgol, M.; Jasińska, B.; Kajetanowicz, M.; Kamińska, D.; Korcyl, G.; Krzemień, W.; Krawczyk, N.; Kubicz, E.; Mohammed, M.; Niedźwiecki, Sz.; Pawlik-Niedźwiecka, M.; Raczyński, L.; Rudy, Z.; Salabura, P.; Silarski, M.; Strzelecki, Adam; Wieczorek, A.; Wiślicki, W.; Wojnarska, Joanna; Zgardzińska, B.; Zieliński, Marcin; Moskal, P.

doi:10.1016/j.nima.2017.01.045

Cited by 36 publications

(40 citation statements)

References 26 publications

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“…[31] show that values equal to 5-7 mm and 9-20 mm for transverse and longitudinal directions can be obtained. In order to improve the resolution along scanner length a method utilising Wavelength Shifting strips placed perpendicular to the detection modules was tested [32], indicating that even 5 mm (σ) resolution can be achieved, with not optimized setup, leaving room for further improvement by optimisation of the WLS parameters and plastic strips. As next steps we intend to improve data selection and estimation of time of the interaction with the scintillator.…”

Section: Discussionmentioning

confidence: 99%

J-PET: A New Technology for the Whole-body PET Imaging

Niedźwiecki¹,

Białas²,

Curceanu³

et al. 2017

Acta Phys. Pol. B

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117

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The Jagiellonian Positron Emission Tomograph (J-PET) is the first PET built from plastic scintillators. J-PET prototype consists of 192 detection modules arranged axially in three layers forming a cylindrical diagnostic chamber with the inner diameter of 85 cm and the axial field-of-view of 50 cm. An axial arrangement of long strips of plastic scintillators, their small light attenuation, superior timing properties, and relative ease of the increase of the axial field-of-view opens promising perspectives for the cost effective construction of the whole-body PET scanner, as well as construction of MR and CT compatible PET inserts. Present status of the development of the J-PET tomograph will be presented and discussed.

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Section: Discussionmentioning

confidence: 99%

J-PET: A New Technology for the Whole-body PET Imaging

Niedźwiecki¹,

Białas²,

Curceanu³

et al. 2017

Acta Phys. Pol. B

Self Cite

117

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“…J-PEM uses a dedicated instrument for breast cancer detection that is equipped with two parallel photon detectors in a configuration similar to mammography compressors. The detector system consists of two modules of plastic scintillators, with each module built from two layers of plastic scintillator and the wavelength shifters [34,35] placed orthogonally between them, as shown in Fig. 6.…”

Section: Concept Of J-pemmentioning

confidence: 99%

“…In the J-PET, solution for the position of the interaction point of photons is based on the measurement of the time of the signals arrival to the ends of the long scintillator strips. So far a resolution of about 10 mm was achieved [35]. In order to achieve high resolution, we propose to register scintillation light escaping the scintillator bar through a side wall using an array of WLS.…”

Section: Concept Of J-pemmentioning

confidence: 99%

Development of J-PEM for Breast Cancer Detection and Diagnosis Using Positronium Imaging

Shivani¹,

Luczynska²,

Heinze³

et al. 2020

Acta Phys. Pol. B

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The purpose of the presented investigations is to design, construct and establish the characteristic performance of the Jagiellonian Positron Emission Mammography(J-PEM), being designed for the detection and diagnosis of breast cancer. Its construction is based on a novel idea of PET tomography based on plastic scintillators and wavelength shifter (WLS) and a new concept of positronium imaging. We have prepared a simulation program based on Monte Carlo methods for optimizing the geometry and material of the J-PEM prototype. Here we present the first results from the simulations and a brief review of the state of art of breast imaging modalities and their characteristics motivating our investigation.

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“…The innovative construction concept was recently proposed by the J-PET collaboration [24][25][26][27][28][29][30][31]. One of the advantages of J-PET is a possibility of multi-photon imaging [32,33] which enables the diagnosis based on positron and positronium lifetime [16] as well as on the ratio of 3γ and 2γ annihilation rates [17,34,35].…”

Section: Introductionmentioning

confidence: 99%

Human Tissue Investigations Using PALS Technique - Free Radicals Influence

et al. 2017

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The positron annihilation lifetime spectroscopy was applied to the samples of the human uterine leiomyomas and the normal myometrium tissues taken from the selected place of the uterus during a surgery. The method indicated differences in values of the measured positron annihilation lifetime spectroscopy parameters (lifetimes and intensities) between healthy and diseased tissue samples. The additional measurements were performed either in darkness or in presence of visible light which influenced the free radicals present in both kind of tissues and, as a result, made changes in free annihilation and o-Ps decay lifetime and intensity values.

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Measurement of gamma quantum interaction point in plastic scintillator with WLS strips

Cited by 36 publications

References 26 publications

J-PET: A New Technology for the Whole-body PET Imaging

J-PET: A New Technology for the Whole-body PET Imaging

Development of J-PEM for Breast Cancer Detection and Diagnosis Using Positronium Imaging

Human Tissue Investigations Using PALS Technique - Free Radicals Influence

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