oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 11 )

2019 ( 752 )

2018 ( 886 )

2017 ( 890 )

Custom range...

Search Results: 1 - 10 of 527582 matches for " M. D Incecco "
All listed articles are free for downloading (OA Articles)
Page 1 /527582
Display every page Item
Performance of a SensL-30035-16P Silicon Photomultiplier array at liquid argon temperature
S. Catalanotti,A. G. Cocco,G. Covone,M. D Incecco,G. Fiorillo,G. Korga,B. Rossi,S. Walker
Physics , 2015,
Abstract: Next generation multi-ton scale noble liquid experiments have the unique opportunity to discover dark matter particles at the TeV scale, reaching the sensitivity of 10^-48 cm2 in the WIMP nucleon scattering cross-section. A prerequisite will be the reduction of radiogenic background sources to negligible levels. This is only possible if ultra pure high efficiency photosensors are available for the scintillation light readout. Current experiments (e.g. Xenon, LUX, Darkside, ArDM) use cryogenic PMTs as photosensors. An attractive alternative is represented by silicon photomultiplier arrays (SiPM arrays), which show unrivalled performances in single photon detection. This paper reports on the performance of the SensL-30035-16P SiPM array and a custom made cryogenic front-end board at the liquid argon temperature.
Tests of PMT Signal Read-out of Liquid Argon Scintillation with a New Fast Waveform Digitizer
R. Acciarri,N. Canci,F. Cavanna,A. Cortopassi,M. D'Incecco,G. Mini,F. Pietropaolo,A. Romboli,E. Segreto,A. M. Szelc
Physics , 2012, DOI: 10.1088/1748-0221/7/07/P07003
Abstract: The CAEN V1751 is a new generation of Waveform Digitizer recently introduced by CAEN SpA. It features 8 Channels per board, 10 bit, 1 GS/s using Flash ADCs Waveform Digitizers (or 4 channels at 2 GS/s in Dual Edge Sampling mode) with threshold and Auto-Trigger capabilities. This provides a good basis for data acquisition in Dark Matter searches using PMTs to detect scintillation light in liquid argon, as it matches the requirements for measuring the fast scintillation component. The board was tested by operating it in real experimental conditions and by comparing it with a state of the art digital oscilloscope. We find that the sampling at 1 or 2 GS/s is appropriate for the reconstruction of the fast component of the scintillation light in argon (characteristic time of about 6-7 ns) and the extended dynamic range, after a small customization, allows for the detection of signals in the range of energy needed. The bandwidth is found to be adequate and the intrinsic noise is very low.
Effect of osteopathic manipulative treatment on gastrointestinal function and length of stay of preterm infants: an exploratory study
Gianfranco Pizzolorusso, Patrizia Turi, Gina Barlafante, Francesco Cerritelli, Cinzia Renzetti, Vincenzo Cozzolino, Marianna D'Orazio, Paola Fusilli, Fabrizio Carinci, Carmine D'Incecco
Chiropractic & Manual Therapies , 2011, DOI: 10.1186/2045-709x-19-15
Abstract: We conducted a prospective study on the effect of osteopathic manipulative treatment in a cohort of N = 350 consecutive premature infants admitted to a neonatal intensive care unit without any major complication between 2005 and 2008. In addition to ordinary care, N = 162 subjects received osteopathic treatment. Endpoints of the study were differences between study and control groups in terms of excessive length of stay and gastrointestinal symptoms, defined as the upper quartiles in the distribution of the overall population. Statistical analysis was based on crude and adjusted odds ratios from multivariate logistic regression.Baseline characteristics were evenly distributed across treated/control groups, except for the rate of infants unable to be oral fed at admission, significantly higher among those undergoing osteopathic care (p = .03). Osteopathic treatment was significantly associated with a reduced risk of an average daily occurrence of gut symptoms per subject above .44 (OR = 0.45; 0.26-0.74). Gestational age lower or equal to 32 weeks, birth weight lower or equal to 1700 grams and no milk consumption at admission were associated with higher rates of length of stay in the unit of at least 28 days, while osteopathic treatment significantly reduced such risk (OR = 0.22;0.09-0.51).In a population of premature infants, osteopathic manipulative treatment showed to reduce a high occurrence of gastrointestinal symptoms and an excessive length of stay in the NICU. Randomized control studies are needed to generalize these results to a broad population of high risk newborns.Significant improvements in neonatal technology utilized in neonatal intensive care units (NICUs) over the last 2 decades, along with evidence-based care guidelines, have significantly improved hospitalization and survival for both low birth weight (LBW) infants and the residual preterm population, albeit at a high cost. A major proportion of pediatric hospital stays in the United States is attri
The veto system of the DarkSide-50 experiment
The DarkSide Collaboration,P. Agnes,L. Agostino,I. F. M. Albuquerque,T. Alexander,A. K. Alton,K. Arisaka,H. O. Back,B. Baldin,K. Biery,G. Bonfini,M. Bossa,B. Bottino,A. Brigatti,J. Brodsky,F. Budano,S. Bussino,M. Cadeddu,L. Cadonati,M. Cadoni,F. Calaprice,N. Canci,A. Candela,H. Cao,M. Cariello,M. Carlini,S. Catalanotti,P. Cavalcante,A. Chepurnov,A. G. Cocco,G. Covone,L. Crippa,D. D'Angelo,M. D'Incecco,S. Davini,S. De Cecco,M. De Deo,M. De Vincenzi,A. Derbin,A. Devoto,F. Di Eusanio,G. Di Pietro,E. Edkins,A. Empl,A. Fan,G. Fiorillo,K. Fomenko,G. Foster,D. Franco,F. Gabriele,C. Galbiati,C. Giganti,A. M. Goretti,F. Granato,L. Grandi,M. Gromov,M. Guan,Y. Guardincerri,B. R. Hackett,K. R. Herner,E. V. Hungerford,Aldo Ianni,Andrea Ianni,I. James,T. Johnson,C. Jollet,K. Keeter,C. L. Kendziora,V. Kobychev,G. Koh,D. Korablev,G. Korga,A. Kubankin,X. Li,M. Lissia,P. Lombardi,S. Luitz,Y. Ma,I. N. Machulin,A. Mandarano,S. M. Mari,J. Maricic,L. Marini,C. J. Martoff,A. Meregaglia,P. D. Meyers,T. Miletic,R. Milincic,D. Montanari,A. Monte,M. Montuschi,M. E. Monzani,P. Mosteiro,B. J. Mount,V. N. Muratova,P. Musico,J. Napolitano,A. Nelson,S. Odrowski,M. Orsini,F. Ortica,L. Pagani,M. Pallavicini,E. Pantic,S. Parmeggiano,K. Pelczar,N. Pelliccia,S. Perasso,A. Pocar,S. Pordes,D. A. Pugachev,H. Qian,K. Randle,G. Ranucci,A. Razeto,B. Reinhold,A. L. Renshaw,A. Romani,B. Rossi,N. Rossi,S. D. Rountree,D. Sablone,P. Saggese,R. Saldanha,W. Sands,S. Sangiorgio,C. Savarese,E. Segreto,D. A. Semenov,E. Shields
Physics , 2015,
Abstract: Nuclear recoil events produced by neutron scatters form one of the most important classes of background in WIMP direct detection experiments, as they may produce nuclear recoils that look exactly like WIMP interactions. In DarkSide-50, we both actively suppress and measure the rate of neutron-induced background events using our neutron veto, composed of a boron-loaded liquid scintillator detector within a water Cherenkov detector. This paper is devoted to the description of the neutron veto system of DarkSide-50, including the detector structure, the fundamentals of event reconstruction and data analysis, and basic performance parameters.
Low radioactivity argon dark matter search results from the DarkSide-50 experiment
The DarkSide Collaboration,P. Agnes,L. Agostino,I. F. M. Albuquerque,T. Alexander,A. K. Alton,K. Arisaka,H. O. Back,B. Baldin,K. Biery,G. Bonfini,M. Bossa,B. Bottino,A. Brigatti,J. Brodsky,F. Budano,S. Bussino,M. Cadeddu,L. Cadonati,M. Cadoni,F. Calaprice,N. Canci,A. Candela,H. Cao,M. Cariello,M. Carlini,S. Catalanotti,P. Cavalcante,A. Chepurnov,A. G. Cocco,G. Covone,L. Crippa,D. D'Angelo,M. D'Incecco,S. Davini,S. De Cecco,M. De Deo,M. De Vincenzi,A. Derbin,A. Devoto,F. Di Eusanio,G. Di Pietro,E. Edkins,A. Empl,A. Fan,G. Fiorillo,K. Fomenko,G. Forster,D. Franco,F. Gabriele,C. Galbiati,C. Giganti,A. M. Goretti,F. Granato,L. Grandi,M. Gromov,M. Guan,Y. Guardincerri,B. R. Hackett,K. Herner,E. V. Hungerford,Al. Ianni,An. Ianni,I. James,C. Jollet,K. Keeter,C. L. Kendziora,V. Kobychev,G. Koh,D. Korablev,G. Korga,A. Kubankin,X. Li,M. Lissia,P. Lombardi,S. Luitz,Y. Ma,I. N. Machulin,A. Mandarano,S. M. Mari,J. Maricic,L. Marini,C. J. Martoff,A. Meregaglia,P. D. Meyers,T. Miletic,R. Milincic,D. Montanari,A. Monte,M. Montuschi,M. Monzani,P. Mosteiro,B. J. Mount,V. N. Muratova,P. Musico,J. Napolitano,A. Nelson,S. Odrowski,M. Orsini,F. Ortica,L. Pagani,M. Pallavicini,E. Pantic,S. Parmeggiano,K. Pelczar,N. Pelliccia,S. Perasso,A. Pocar,S. Pordes,D. A. Pugachev,H. Qian,K. Randle,G. Ranucci,A. Razeto,B. Reinhold,A. L. Renshaw,A. Romani,B. Rossi,N. Rossi,D. Rountree,D. Sablone,P. Saggese,R. Saldanha,W. Sands,S. Sangiorgio,C. Savarese,E. Segreto,D. A. Semenov,E. Shields,P. N. Singh
Physics , 2015,
Abstract: The DarkSide-50 dark matter search reports the first results obtained using a target of low-radioactivity argon extracted from underground sources. The experiment is located at the Laboratori Nazionali del Gran Sasso and uses a two-phase time projection chamber as a detector. A total of 155 kg of low radioactivity argon has been obtained, and we have determined that underground argon is depleted in Ar-39 by a factor (1.4 +- 0.2) x 10^3 relative to atmospheric argon. The underground argon is also found to contain (2.05 +- 0.13) mBq/kg of Kr-85. We find no evidence for dark matter in the form of WIMPs in 70.9 live-days of data with a fiducial mass of (36.9 +- 0.6) kg. When combined with our preceding search with an atmospheric argon target, we set a 90 % C.L. upper limit on the WIMP-nucleon spin-independent cross section of 2.0 x 10^-44 cm^2 (8.6 x 10^-44 cm^2, 8.0 x 10^-43 cm^2) for a WIMP mass of 100 GeV/c^2 (1 TeV/c^2 , 10 TeV/c^2).
The Electronics and Data Acquisition System of the DarkSide Dark Matter Search
The DarkSide Collaboration,P. Agnes,T. Alexander,A. Alton,K. Arisaka,H. O. Back,B. Baldin,K. Biery,G. Bonfini,M. Bossa,A. Brigatti,J. Brodsky,F. Budano,L. Cadonati,F. Calaprice,N. Canci,A. Candela,H. Cao,M. Cariello,P. Cavalcante,A. Chavarria,A. Chepurnov,A. G. Cocco,L. Crippa,D. D'Angelo,M. D'Incecco,S. Davini,M. De Deo,A. Derbin,A. Devoto,F. Di Eusanio,G. Di Pieto,E. Edkins,A. Empl,A. Fan,G. Fiorillo,K. Fomenko,G. Forster,D. Franco,F. Gabriele,C. Galbiati,A. Goretti,L. Grandi,M. Gromov,M. Y. Guan,Y. Guardincerri,B. Hackett,K. Herner,E. Hungerford,Al. Ianni,An. Ianni,C. Jollet,K. Keeter,C. Kendziora,S. Kidner,V. Kobychev,G. Koh,D. Korablev,G. Korga,A. Kurlej,P. X. Li,B. Loer,P. Lombardi,C. Love,L. Ludhova,S. Luitz,Y. Q. Ma,I. Machulin,A. Mandarano,S. M. Mari,J. Maricic,L. Marini,J. Martoff,A. Meregaglia,E. Meroni,P. D. Meyers,R. Milincic,D. Montanari,M. Montuschi,M. E. Monzani,P. Mosteiro,B. Mount,V. Muratova,P. Musico,A. Nelson,S. Odrowski,M. Okounkoa,M. Orsini,F. Ortica,L. Pagani,M. Pallavicini,E. Pantic,L. Papp,S. Parmeggiano,Bob Parsells,K. Pelczar,N. Pelliccia,S. Perasso,A. Pocar,S. Pordes,D. Pugachev,H. Qian,K. Randle,G. Ranucci,A. Razeto,B. Reinhold,A. Renshaw,A. Romani,B. Rossi,N. Rossi,S. D. Rountree,D. Sablone,P. Saggese,R. Saldanha,W. Sands,S. Sangiorgio,E. Segreto,D. Semenov,E. Shields,M. Skorokhvatov,O. Smirnov,A. Sotnikov,C. Stanford,Suvorov,R. Tartaglia,J. Tatarowicz,G. Testera,A. Tonazzo,E. Unzhakov,R. B. Vogelaar,M. Wada,S. E. Walker,H. Wang,Y. Wang
Physics , 2014,
Abstract: It is generally inferred from astronomical measurements that Dark Matter (DM) comprises approximately 27\% of the energy-density of the universe. If DM is a subatomic particle, a possible candidate is a Weakly Interacting Massive Particle (WIMP), and the DarkSide-50 (DS) experiment is a direct search for evidence of WIMP-nuclear collisions. DS is located underground at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, and consists of three active, embedded components; an outer water veto (CTF), a liquid scintillator veto (LSV), and a liquid argon (LAr) time projection chamber (TPC). This paper describes the data acquisition and electronic systems of the DS detectors, designed to detect the residual ionization from such collisions.
First Results from the DarkSide-50 Dark Matter Experiment at Laboratori Nazionali del Gran Sasso
P. Agnes,T. Alexander,A. Alton,K. Arisaka,H. O. Back,B. Baldin,K. Biery,G. Bonfini,M. Bossa,A. Brigatti,J. Brodsky,F. Budano,L. Cadonati,F. Calaprice,N. Canci,A. Candela,H. Cao,M. Cariello,P. Cavalcante,A. Chavarria,A. Chepurnov,A. G. Cocco,L. Crippa,D. D'Angelo,M. D'Incecco,S. Davini,M. De Deo,A. Derbin,A. Devoto,F. Di Eusanio,G. Di Pietro,E. Edkins,A. Empl,A. Fan,G. Fiorillo,K. Fomenko,G. Forster,D. Franco,F. Gabriele,C. Galbiati,A. Goretti,L. Grandi,M. Gromov,M. Y. Guan,Y. Guardincerri,B. Hackett,K. Herner,E. V. Hungerford,Al. Ianni,An. Ianni,C. Jollet,K. Keeter,C. Kendziora,S. Kidner,V. Kobychev,G. Koh,D. Korablev,G. Korga,A. Kurlej,P. X. Li,B. Loer,P. Lombardi,C. Love,L. Ludhova,S. Luitz,Y. Q. Ma,I. Machulin,A. Mandarano,S. Mari,J. Maricic,L. Marini,C. J. Martoff,A. Meregaglia,E. Meroni,P. D. Meyers,R. Milincic,D. Montanari,A. Monte,M. Montuschi,M. E. Monzani,P. Mosteiro,B. Mount,V. Muratova,P. Musico,A. Nelson,S. Odrowski,M. Okounkova,M. Orsini,F. Ortica,L. Pagani,M. Pallavicini,E. Pantic,L. Papp,S. Parmeggiano,R. Parsells,K. Pelczar,N. Pelliccia,S. Perasso,A. Pocar,S. Pordes,D. Pugachev,H. Qian,K. Randle,G. Ranucci,A. Razeto,B. Reinhold,A. Renshaw,A. Romani,B. Rossi,N. Rossi,S. D. Rountree,D. Sablone,P. Saggese,R. Saldanha,W. Sands,S. Sangiorgio,E. Segreto,D. Semenov,E. Shields,M. Skorokhvatov,O. Smirnov,A. Sotnikov,C. Stanford,Y. Suvorov,R. Tartaglia,J. Tatarowicz,G. Testera,A. Tonazzo,E. Unzhakov,R. B. Vogelaar,M. Wada,S. Walker,H. Wang,Y. Wang,A. Watson
Physics , 2014, DOI: 10.1016/j.physletb.2015.03.012
Abstract: We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4+-0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a (1422+-67) kg d exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1x10^-44 cm^2 for a WIMP mass of 100 GeV/c^2.
A Form of Information Entropy  [PDF]
M. Divari, D. Vivona
Natural Science (NS) , 2014, DOI: 10.4236/ns.2014.617118
Abstract: In this paper, by axiomatic way, a form of information entropy will be presented on crisp and fuzzy setting. Information entropy is the unavailability of information about a crisp or fuzzy event. It will use measure of information defined without any probability or fuzzy measure: for this reason it is called general information.
Design of Efficient Router with Low Power and Low Latency for Network on Chip  [PDF]
M. Deivakani, D. Shanthi
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.74029
Abstract: The NoC consists of processing element (PE), network interface (NI) and router. This paper proposes a hybrid scheme for Netwok of Chip (NoC), which aims at obtaining low latency and low power consumption by concerning wired and wireless links between routers. The main objective of this paper is to reduce the latency and power consumption of the network on chip architecture using wireless link between routers. In this paper, the power consumption is reduced by designing a low power router and latency is reduced by implementing a on-chip wireless communication as express links for transferring data from one subnet routers to another subnet routers. The average packet latency and normalized power consumption of proposed hybrid NoC router are analyzed for synthetic traffic loads as shuffle traffic, bitcomp traffic, transpose traffic and bitrev traffic. The proposed hybrid NoC router reduces the normalized power over the wired NoC by 12.18% in consumer traffic, 12.80% in AutoIndust traffic and 12.5% in MPEG2 traffic. The performance is also analyzed with real time traffic environments using Network simulator 2 tool.
Spacetime Geometry and the Laws of Physics  [PDF]
D. M. Kalassa
Journal of Modern Physics (JMP) , 2017, DOI: 10.4236/jmp.2017.83022
Abstract: The Laws of Classical and Quantum Mechanics are well known. However, their origin remains mysterious and their interpretation controversial. It has been argued that this situation will continue until one manages to derive the Laws of Physics from some very first principles. In this paper, we use basic concepts of Differential Geometry to yield the Klein-Gordon equation and the Lagrange equations of Relativistic Mechanics without using the standard postulates of Quantum Mechanics, Special Relativity or even General Relativity.
Page 1 /527582
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.