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Double beta decay with large scale Yb-loaded scintillators  [PDF]
K. Zuber
Physics , 2000, DOI: 10.1016/S0370-2693(00)00644-4
Abstract: The potential of large scale Yb-loaded liquid scintillators as proposed for solar neutrino spectroscopy are investigated with respect to double beta decay. The potential for beta-beta- - decay of 176Yb as well as the beta+/EC - decay for 168Yb is discussed. Not only getting for the first time an experimental half-life limit on 176Yb - decay, this will even be at least comparable or better than existing ones from other isotopes. Also for the first time a realistic chance to detect beta+/EC - decay exists. Effects of MeV-neutrinos are discussed as well.
Double Beta Decay: Scintillators  [PDF]
Mark C. Chen
Physics , 2008, DOI: 10.1088/1742-6596/136/2/022035
Abstract: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into scintillators or can be loaded into scintillators. Experimental programs developing liquid xenon, inorganic crystals, and Nd-loaded liquid scintillator are described in this review. Experiments with 48Ca and 150Nd benefit from their high endpoint which places the neutrinoless double beta decay signal above most backgrounds from natural radioactivity.
Solubility, Light Output and Energy Resolution Studies of Molybdenum-Loaded Liquid Scintillators  [PDF]
V. M. Gehman,P. J. Doe,R. G. H. Robertson,D. I. Will,H. Ejiri,R. Hazama
Physics , 2009, DOI: 10.1016/j.nima.2010.07.054
Abstract: The search for neutrinoless double-beta decay is an important part of the global neutrino physics program. One double-beta decay isotope currently under investigation is 100Mo. In this article, we discuss the results of a feasibility study investigating the use of molybdenum-loaded liquid scintillator. A large, molybdenum-loaded liquid scintillator detector is one potential design for a low-background, internal-source neutrinoless double-beta decay search with 100Mo. The program outlined in this article included the selection of a solute containing molybdenum, a scintillating solvent and the evaluation of the mixture's performance as a radiation detector.
Measurement of ortho-Positronium Properties in Liquid Scintillators  [PDF]
S. Perasso,G. Consolati,D. Franco,S. Hans,C. Jollet,A. Meregaglia,A. Tonazzo,M. Yeh
Physics , 2013, DOI: 10.1088/1748-0221/9/03/C03028
Abstract: Pulse shape discrimination in liquid scintillator detectors is a well-established technique for the discrimination of heavy particles from light particles. Nonetheless, it is not efficient in the separation of electrons and positrons, as they give rise to indistinguishable scintillator responses. This inefficiency can be overtaken through the exploitation of the formation of ortho-Positronium (o-Ps), which alters the time profile of light pulses induced by positrons. We characterized the o-Ps properties in the most commonly used liquid scintillators, i.e. PC, PXE, LAB, OIL and PC + PPO. In addition, we studied the effects of scintillator doping on the o-Ps properties for dopants currently used in neutrino experiments, Gd and Nd. Further measurements for Li-loaded and Tl-loaded liquid scintillators are foreseen. We found that the o-Ps properties are suitable for enhancing the electron-positron discrimination.
Sound and light from fractures in scintillators  [PDF]
A. Tantot,S. Santucci,O. Ramos,S. Deschanel,M. -A. Verdier,E. Mony,Y. Wei,S. Ciliberto,L. Vanel,P. C. F. Di Stefano
Physics , 2013, DOI: 10.1103/PhysRevLett.111.154301
Abstract: Prompted by intriguing events observed in certain particle-physics searches for rare events, we study light and acoustic emission simultaneously in some inorganic scintillators subject to mechanical stress. We observe mechanoluminescence in ${Bi}_4{Ge}_{3}{O}_{12}$, ${CdWO}_{4}$ and ${ZnWO}_{4}$, in various mechanical configurations at room temperature and ambient pressure. We analyze how the light emission is correlated to acoustic emission during fracture. For ${Bi}_4{Ge}_{3}{O}_{12}$, we set a lower bound on the energy of the emitted light, and deduce that the fraction of elastic energy converted to light is at least $3 \times 10^{-5}$.
Plastic scintillators for positron emission tomography obtained by the bulk polymerization method  [PDF]
?ukasz Kap?on,Andrzej Kochanowski,Marcin Molenda,Pawe? Moskal,Anna Wieczorek,Tomasz Bednarski,Piotr Bia?as,Eryk Czerwiński,Grzegorz Korcyl,Jakub Kowal,Pawe? Kowalski,Tomasz Kozik,Wojciech Krzemień,Szymon Nied?wiecki,Marek Pa?ka,Monika Pawlik,Lech Raczyński,Zbigniew Rudy,Piotr Salabura,Neha Gupta-Sharma,Micha? Silarski,Artur S?omski,Jerzy Smyrski,Adam Strzelecki,Wojciech Wi?licki,Marcin Zieliński,Natalia Zoń
Physics , 2015, DOI: 10.1515/bams-2013-0108
Abstract: This paper describes three methods regarding the production of plastic scintillators. One method appears to be suitable for the manufacturing of plastic scintillator, revealing properties which fulfill the requirements of novel positron emission tomography scanners based on plastic scintillators. The key parameters of the manufacturing process are determined and discussed.
Wide-band chalcogenide scintillators on the basis of AIIBVI compounds
Starzhinskiy N. G.,Grinyov B. V.,Ryzhikov V. D.,Maliykin Yu. V.
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature , 2012,
Abstract: The formation characteristics of chalcogenide scintillators (CS) based on zinc sulfide and selenide are considered. The research has shown that such scintillators have high specific light yield, low afterglow level, short luminescence time, low value of the effective atomic number (Zeff=26—33), large band gap (Eg=2,8—3,6 eV), high thermal stability of output parameters. The prospects of use of such scintillators in various devices of modern radiation instrumentation has been shown.
Discovery of the Indium Isotopes  [PDF]
S. Amos,M. Thoennessen
Physics , 2010,
Abstract: Thirty-eight indium isotopes (A = 98-135) have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.
Antibacterial activity of indium curcumin and indium diacetylcurcumin
S Tajbakhsh, K Mohammadi, I Deilami, K Zandi, M Fouladvand, E Ramedani, G Asayesh
African Journal of Biotechnology , 2008,
Abstract: Studies on curcumin, the principal element of turmeric powder, have demonstrated several biological actions such as antibacterial activity. Evaluation of new analogs or new compounds of curcumin for their antibacterial effect is interesting for researchers. In this in vitro study, we attempted to test the antibacterial activity of indium curcumin (In(CUR)3), indium diacetylcurcumin (In(DAC)3), and diacetylcurcumin (DAC) in comparison with curcumin. The action of these agents were examined on Staphylococcus aureus (ATCC 25923), Staphylococcus epidermidis (ATCC 14990), Pseudomonas aeruginosa (ATCC 27853), and Escerichia coli (ATCC 25922). Curcumin was effective against S. aureus and S. epidermidis, whereas In(DAC)3 showed activity against S. epidermidis and P. aeruginosa. The effect of In(DAC)3 on P. aeruginosa is an advantage. Strikingly, In(CUR)3 exhibited antibacterial activity on all the four mentioned strains. DAC did not show antibacterial effect on any of the four test bacteria. The minimum inhibitory concentration (MIC) of curcumin was 187.5 ìg/ml for S. aureus, and 46.9 ìg/ml for S. epidermidis. However, the MIC of In(CUR)3 was lower for the same bacterial strains (93.8 ìg/ml for S.aureus and 23.4 ìg/ml for S. epidermidis). Therefore, In(CUR)3 was found to have more antibacterial effect than curcumin itself and could be a suitable candidate for further in vivo investigations.
A mobile antineutrino detector with plastic scintillators  [PDF]
Yasuhiro Kuroda,Shugo Oguri,Yo Kato,Ryoko Nakata,Yoshizumi Inoue,Chikara Ito,Makoto Minowa
Physics , 2012, DOI: 10.1016/j.nima.2012.06.040
Abstract: We propose a new type segmented antineutrino detector made of plastic scintillators for the nuclear safeguard application. A small prototype was built and tested to measure background events. A satisfactory unmanned field operation of the detector system was demonstrated. Besides, a detailed Monte Carlo simulation code was developed to estimate the antineutrino detection efficiency of the detector.
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