Conveners
Poster Session 2
- Remi Chipaux (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))
- Marco Pizzichemi (CERN)
- Kristof Pauwels (Universita & INFN, Milano-Bicocca (IT))
Eu2+ doped LiCaAlF6 and LiSrAlF6 [Eu:LiCAF, Eu:LiSAF] single crystals have been investigated as a neutron scintillator for homeland security. The Eu:LiCAF and Eu:LiSAF single crystals indicated high light yield, ~30,000 photons/neutron, compared to present neutron scintillators. However, the segregation coefficient, keff, of Eu2+ ion...
Novel applications of neutron have been developed such as imaging method using a pulsed neutron source and neutron resonance absorption spectroscopy. These methods require position sensitive detectors for neutron with the Time-of-Flight (TOF), and one of the issues is development of fast response scintillator. Some of halide scintillators show high light yield and fast decay time, however,...
Recently, halide scintillators have been developed because of their high light yield which is originated from their narrow band gap. Thanks to great researchers’ efforts, some excellent scintillators have been found, such as Eu:SrI2 for high light yield, CeBr3 and Ce:LaBr3 for high light yield and fast decay time. In addition to these promising scintillators, new halide scintillator screening...
P. Arhipov1, S. Tkachenko1, S. Vasiukov1, I. Gerasymov1, N. Shiran1, O. Sidletskiy1, M. Fasoli2, F. Moretti2, A. Vedda2, M. Korjik3, Y. Zorenko4,5, T. Zorenko4, K. Paprocki4
1 Institute for Scintillation Materials NAS of Ukraine, pr. Nauky 60, 61017 Kharkiv, Ukraine
2Department of Materials Science, University of Milano-Bicocca, Via Cozzi 55, 20125 Milano, Italy
3 Research Institute for...
Currently, CsI:Tl and Gd2O2S:Tb (GOS) were recent commercially available scintillators for X-ray imaging. In this applications improvements of sensitivity and special resolution are required to obtain much fine morphological information. To improve sensitivity and special resolution, increase of thickness of scintillator plates or discover of new heavier scintillation materials were necessary....
SrI2(Eu) is a promising scintillator having high brightness, 3% energy resolution at 662 keV, and no self-activity. The elpasolite Cs26LiYCl6(Ce) (CLYC) has also shown great promise for dual-gamma-neutron detection. However, high production costs have slowed their adoption into mainstream detection technologies. Costs related to precursors may be mitigated through continuing improvements, but...
Various types of binary or ternary complex halides between alkaline and rare earth halides such as K2LaBr5:Ce, RbGd2Br7:Ce, Cs2LiYCl6:Ce and LiGdCl4:Ce have been developed as scintillators in the last two decades. Many of them, especially the elpasolite series, show excellent scintillation performance and good application prospect. Current crystal growth of complex rare earth halides usually...
Recent results of neutrino oscillations have shown that neutrinos have masses. However, the results do not provide absolute masses and properties of neutrinos. To answer these questions, many experiments have been being carried out or prepared. One of the experiments is the Advanced Mo Based Rare Process Experiment (AMoRE) searching for the neutrino-less double beta decays (0ν2β) of 100Mo...
LaBr_{3}:Ce is known as an efficient scintillation material with $\gamma$-ray spectroscopic properties for isotopes identification applications. Energy resolution of industrial detectors is on the order of 3.0% . Material engineering with $Me^{2+}$ co-doping demonstrated an efficient way of improving the proportionality and consequently the energy resolution of the co-doped scintillator...
The light output from high-aspect ratio scintillators used in Positron Emission Tomography (PET) detectors is a critical factor to achieve good energy and time resolution. However, only a fraction of the light generated in the crystals is actually extracted from these scintillators, hence raising the need to identify the predominant causes of signal loss.
As a first step, in order to identify...
Positron Emission Tomography (PET) and detectors in High Energy Physics (HEP) both use scintillating crystals and face similar problems when it comes to light extraction. A large fraction of light produced in the crystals is trapped inside the crystal due to total internal reflection caused by their high refraction index. In previous works[1,2] we already showed the light extraction...
S. Sykorovaa, S.Valkovaa, R. Kucerkovab, J. Houzvickaa, M. Niklb
a Crytur Ltd., Palackého 175, Turnov, 511 01, Czech Republic
b Institute of Physics AS CR, Cukrovarnická 10, Prague 6, 162 00, Czech Republic
In the recent years, the demand for faster scintillators increased significantly in many areas of research in nuclear and particle physics, in medicine and industry.
Crytur company is...
With LuAG:RE3+ (RE = rare-earth elements) single crystal and fiber applications in many fields of scintillator industry, including high-energy particle physics, medical imaging and security measures [1], there is a growing interest in the LuAG:Re3+ powders. Due to the luminescence properties and very high chemical stability, such powders may be used as a light-emitting...
One crucial issue for applications of scintillation crystals in future HEP calorimeters is radiation damage in severe radiation environment, such as at the HL-LHC. While radiation damage induced by ionization dose in inorganic crystal scintillators is well understood, investigations are on-going to understand radiation damage caused by hadrons, including both charged hadrons and neutrons. In...
X-ray phase imaging techniques has been developing for the last decade because of its attractive potentials [1–7]. X-ray phase imaging provides three images such absorption, differential-phase, and visibility-contrast images. This future causes to higher resolution density variations in the sample than that conventional absorption-contrast X-ray imaging. Medical and biological imaging is the...
Multicomponent oxide scintillators with the garnet structure (space group Ia-3d) have attracted significant attention in recent decade due to the possibility of alleviating structural defects and changing the luminescence properties by tuning the composition. Very often, the admixture of Ga into Ce-doped aluminate garnets is used to lower the conduction band minimum and thus to bury the...
The development of new generation of scintillating crystals for High-Energy Physics, Medical Imaging and Security, asks for reliable and fast inspection techniques. Since the crystal production cost is a large part of instrumentation final expenses, it is mandatory an improvement of the production process in terms of production efficiency, i.e. reduced number of defected crystals. The residual...
Because of their superb energy resolution and detection efficiency, inorganic crystal scintillators are widely used in HEP experiments. Future high energy physics experiments at the energy and intensity frontiers will face challenges of a severe radiation environment from both ionization dose and charged and neutral hadrons. The HL-LHC, for example, will present a very severe radiation...
Radiation damage tests of diamond and scintillation detector
components for the ITER Radial Neutron Camera
S. Baccaro, A. Cemmi, I. Di Sarcina, B. Esposito, G. Ferrara, A. Grossi,
M. Montecchi, S. Podda, F. Pompili, L. Quintieri, M. Riva.
During the ITER reactor operation time, the plasma will give rise to high energy neutron and gamma flux and this intense radiation field will result in...
GSI [1] is a unique large scale facility for heavy ion research. Ion beams of many elements, including H and U, are produced with energies up to 4.5 GeV/u. For absolute beam intensity measurements a BC-400, organic scintilator, is used. Due to the low radiation hardness of this material, alternative inorganic scintilators like ZnO(Ga) and ZnO(In) [2] were investigated during the 2016...
Engineering of garnet scintillators by co-doping with the divalent ions of the second group appears to be a powerful tool to improve the scintillation response. It leads to a strong suppression of phosphorescence in different garnets like Y3Al5O12 (YAG), Y3Al2Ga3O12, Gd3Al2Ga3O12 and diminishing the afterglow parameter correspondingly. However, crystal co-doping with Mg2+ or Ca2+ decreases the...
Crystalline scintillators with high Z numbers, good energy resolution, and the ability to detect neutrons are highly attractive for threat discrimination and special nuclear materials identification. Traditional scintillators NaI and CsI have effective Z numbers of 50 and 54. However, they do not offer neutron detection. CLYC (Cs2LiYCl6:Ce) scintillator offers gamma energy resolution near 4%,...
In this work, we continued our research directed on crystallization and investigation of the luminescent and scintillation properties of scintillating screens based on the single crystalline films (SCFs) of Eu3+ doped RAlO3 (R= Tb, Gd, Lu) mixed perovskites [1, 2]. SCFs of the solid solutions of (Tb1-xLux)AP:Ce and Gd1-xTbxAP:Ce, x=0-1.0 perovskites were grown by the liquid phase epitaxy...
The Gd3(Al,Ga)5O12:Ce single crystalline films were grown by liquid phase epitaxy (LPE) technique from BaO-B2O3-BaF2 flux. The scintillation characteristics were investigated and compared to the bulk Czochralski-grown single crystal of similar composition. The light yield (LY) and energy resolution were measured using an R6231 photomultiplier under excitation with α - rays. At 5.155 MeV -...
A plastic scintillator (PLS) is a potential material for developing a dosimeter based on measurement of linear energy transfer (LET) for mixed radiation fields such as the accelerators' surroundings or in space because PLSs are composed mainly of hydrocarbon molecules, and have the effective atomic number and the density similar to those of water and human tissues. Additionally, there is a...
One of the main challenges in the development of detectors for future collider
experiments is finding materials that can operate in high radiation environments
while maintaining their physical, chemical, and optical properties.
In this framework, scintillating materials and Cherenkov radiators, such as crystals
and glasses, represent a powerful tool for the design of large area...
Scintillating nanoparticles (NPs) may find various applications in medicine, one of them being X-ray induced photodynamic therapy (PDTX) [1]. In general, a material suitable for PDTX is a nanocomposite consisting of silica-coated scintillating core (e. g. Pr3+-doped lutetium aluminium garnet) subsequently functionalised with protoporphyrin IX (PpIX) [2] at its surface.
The first...
In this work, we present for the first time the results on crystallization and investigation of the luminescent and scintillation properties of new prospective scintillators based on the single crystalline films (SCFs) of Ce3+ doped Ca2RMgScSi3O12 (R=Y, Lu) silicate garnet, grown by the liquid phase epitaxy (LPE) method onto Y3Al5O12 (YAG) substrates. The luminescent properties of...
Recently, oil well logging in the shale layer that exists at a depth greater than conventional oil resources have been required due to increase oil demand. Operating in a deep underground region at high temperature, the scintillator is required that a high light output can be maintained even at high temperature. In previous study, our group has been investigated Ce-doped (Gd,La,Y)2Si2O7, and...
The MAX IV Laboratory (Lund, Sweden) is a new synchrotron radiation research center located in Lund Sweden. It was inaugurated in June 2016. Currently, seven beamlines have been installed at the MAX IV facility. With a circumference of 96 m and an electron energy of 1.5 GeV, the new storage ring at MAX IV Laboratory is a perfect synchrotron source for VUV and soft x-ray (XUV) photon...
