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Автор: Grafiati
Опубліковано: 6 вересня 2023

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Статті в журналах з теми "XENON1T experiment"

1

Persiani, Rino. "RESULTS FROM THE XENON100 EXPERIMENT." Acta Polytechnica 53, A (December 18, 2013): 555–59. http://dx.doi.org/10.14311/ap.2013.53.0555.

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Анотація:
The XENON program consists in operating and developing double-phase time projection chambers using liquid xenon as the target material. It aims to directly detect dark matter in the form of WIMPs via their elastic scattering off xenon nuclei. The current phase is XENON100, located at the Laboratori Nazionali del Gran Sasso (LNGS), with a 62 kg liquid xenon target. We present the 100.9 live days of data, acquired between January and June 2010, with no evidence of dark matter, as well as the new results of the last scientific run, with about 225 live days. The next phase, XENON1T, will increase the sensitivity by two orders of magnitude.
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2

Ahlin, Daniel, Boris Bauermeister, Jan Conrad, Robert Gardner, Luca Grandi, Benedikt Riedel, Evan Shockley, et al. "The XENON1T Data Distribution and Processing Scheme." EPJ Web of Conferences 214 (2019): 03015. http://dx.doi.org/10.1051/epjconf/201921403015.

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The XENON experiment is looking for non-baryonic particle dark matter in the universe. The setup is a dual phase time projection chamber (TPC) filled with 3200 kg of ultra-pure liquid xenon. The setup is operated at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. We present a full overview of the computing scheme for data distribution and job management in XENON1T. The software package Rucio, which is developed by the ATLAS collaboration, facilitates data handling on Open Science Grid (OSG) and European Grid Infrastructure (EGI) storage systems. A tape copy at the Centre for High Performance Computing (PDC) is managed by the Tivoli Storage Manager (TSM). Data reduction and Monte Carlo production are handled by CI Connect which is integrated into the OSG network. The job submission system connects resources at the EGI, OSG, SDSC’s Comet, and the campus HPC resources for distributed computing. The previous success in the XENON1T computing scheme is also the starting point for its successor experiment XENONnT, which starts to take data in autumn 2019.
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3

Aprile, E., J. Aalbers, K. Abe, F. Agostini, S. Ahmed Maouloud, L. Althueser, B. Andrieu, et al. "The triggerless data acquisition system of the XENONnT experiment." Journal of Instrumentation 18, no. 07 (July 1, 2023): P07054. http://dx.doi.org/10.1088/1748-0221/18/07/p07054.

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Abstract The XENONnT detector uses the latest and largest liquid xenon-based time projection chamber (TPC) operated by the XENON Collaboration, aimed at detecting Weakly Interacting Massive Particles and conducting other rare event searches. The XENONnT data acquisition (DAQ) system constitutes an upgraded and expanded version of the XENON1T DAQ system. For its operation, it relies predominantly on commercially available hardware accompanied by open-source and custom-developed software. The three constituent subsystems of the XENONnT detector, the TPC (main detector), muon veto, and the newly introduced neutron veto, are integrated into a single DAQ, and can be operated both independently and as a unified system. In total, the DAQ digitizes the signals of 698 photomultiplier tubes (PMTs), of which 253 from the top PMT array of the TPC are digitized twice, at ×10 and ×0.5 gain. The DAQ for the most part is a triggerless system, reading out and storing every signal that exceeds the digitization thresholds. Custom-developed software is used to process the acquired data, making it available within ∼30 s for live data quality monitoring and online analyses. The entire system with all the three subsystems was successfully commissioned and has been operating continuously, comfortably withstanding readout rates that exceed ∼500 MB/s during calibration. Livetime during normal operation exceeds 99% and is ∼90% during most high-rate calibrations. The combined DAQ system has collected more than 2 PB of both calibration and science data during the commissioning of XENONnT and the first science run.
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4

Benabderrahmane, M. L. "Latest results from the XENON1T experiment." Journal of Physics: Conference Series 1258 (October 2019): 012009. http://dx.doi.org/10.1088/1742-6596/1258/1/012009.

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5

Fieguth, Alexander. "Distillation column for the XENON1T experiment." Journal of Physics: Conference Series 718 (May 2016): 042020. http://dx.doi.org/10.1088/1742-6596/718/4/042020.

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6

Aprile, E., J. Aalbers, F. Agostini, M. Alfonsi, F. D. Amaro, M. Anthony, L. Arazi, et al. "Physics reach of the XENON1T dark matter experiment." Journal of Cosmology and Astroparticle Physics 2016, no. 04 (April 14, 2016): 027. http://dx.doi.org/10.1088/1475-7516/2016/04/027.

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7

Rosendahl, S., E. Brown, I. Cristescu, A. Fieguth, C. Huhmann, M. Murra, and C. Weinheimer. "A cryogenic distillation column for the XENON1T experiment." Journal of Physics: Conference Series 564 (November 28, 2014): 012006. http://dx.doi.org/10.1088/1742-6596/564/1/012006.

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8

Brenner, Anja, Gonzalo Herrera, Alejandro Ibarra, Sunghyun Kang, Andreas Rappelt, Stefano Scopel, and Gaurav Tomar. "The impact of operator interference and target complementarity in dark matter direct detection experiments." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012069. http://dx.doi.org/10.1088/1742-6596/2156/1/012069.

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Анотація:
Abstract We present a method to determine the limits on the DM-nucleon interaction strengths for one experiment in the non-relativistic effective theory by taking the interference of operators into account. Further, we extend the method to combine several experiments. To apply the developed methods, we use data from the XENON1T and PICO6O collaborations. The relaxation caused by the interference among operators can be up to four orders of magnitude. The strengthening of the limits by combining the analysis of both experiments can be up to four orders of magnitude.
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9

Xia, Chen, Yan-Hao Xu, and Yu-Feng Zhou. "Production and attenuation of cosmic-ray boosted dark matter." Journal of Cosmology and Astroparticle Physics 2022, no. 02 (February 1, 2022): 028. http://dx.doi.org/10.1088/1475-7516/2022/02/028.

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Abstract Light sub-GeV halo dark matter (DM) particles up-scattered by high-energy cosmic-rays (CRs) (referred to as CRDM) can be energetic and become detectable by conventional DM direct detection experiments. We perform a refined analysis on the exclusion bounds of the spin-independent DM-nucleon scattering cross section σχ p in this approach. For the exclusion lower bounds, we determine the parameter of the effective distance Deff for CRDM production using spatial-dependent CR fluxes and including the contributions from the major heavy CR nuclear species. We obtain Deff≃ 9 kpc for CRDM particles with kinetic energy above ∼ 1 GeV, which pushes the corresponding exclusion lower bounds down to σχ p∼ 4× 10-32 cm2 for DM particle mass at MeV scale and below. For the exclusion upper bounds from Earth attenuation, previous estimations neglecting the nuclear form factor leaded to typical exclusion upper bounds of σχ p∼𝒪(10-28) cm2 from the XENON1T data. Using both the analytic and numerical approaches, we show that for CRDM particles, the presence of the nuclear form factor strongly suppresses the effect of Earth attenuation. Consequently, the cross section that can be excluded by the XENON1T data can be a few orders of magnitude higher, which closes the gap in the cross sections excluded by the XENON1T experiment and that by the astrophysical measurements such that for the cosmic microwave background (CMB), galactic gas cloud cooling, and structure formation, etc..
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10

Remenska, D., C. Tunnell, J. Aalbers, S. Verhoeven, J. Maassen, and J. Templon. "GivingpandasROOT to chew on: experiences with the XENON1T Dark Matter experiment." Journal of Physics: Conference Series 898 (October 2017): 042003. http://dx.doi.org/10.1088/1742-6596/898/4/042003.

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Дисертації з теми "XENON1T experiment"

1

Toschi, Francesco. "Study of the electronic recoil background of the XENON1T experiment." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15785/.

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Uno dei principali protagonisti della caccia alla Materia Oscura è il Progetto XENON presso i LNGS, con l'obiettivo di rivelare le WIMP. Forti dell'esperienza proveniente dalle precedenti fasi del Progetto, l'attuale esperimento XENON1T è il primo che contiene circa 3.2 t di xenon liquido, di cui circa 2 t costituiscono la massa attiva della TPC a doppia fase. E questa è la prima TPC con massa attiva superiore a 1 t e con il più basso livello di fondo tra tutti gli esperimenti di questo tipo. Nel 2017, con un tempo di esposizione di soli 34.2 giorni, XENON1T ha ottenuto uno dei miglior limiti di esclusione per la sezione d'urto di interazione WIMP-nucleo non dipendente dallo spin. Nella prima parte del presente lavoro di tesi, verifico la possibilità che il neutron generator (NG), una sorgente di neutroni per la calibrazione della risposta del rivelatore ai rinculi nucleari (NR), possa essere una sorgente di fondo per il rivelatore essendo posizionato vicino alla TPC. Dalla stima del rate di eventi in presenza o meno del NG, nessuna differenza è stata osservata per gli eventi da rinculo elettronico (ER) a bassa energia. Successivamente alla valutazione dell'attività di U238 e Th232 nei materiali del NG, è possibile stimare il fondo indotto da neutroni radiogenici atteso dal NG: poiché risulta essere due ordini di grandezza inferiore a quanto atteso dai materiali di costruzione del rivelatore, può essere considerato un contributo trascurabile. Nella parte finale della tesi si presentano tutte le possibili sorgenti di fondo per eventi ER nel rivelatore di XENON1T e la simulazione, con il programma GEANT4, di tale fondo. In particolare, è esaminata e discussa la nuova implementazione della simulazione per il doppio decadimento beta dell'isotopo Xe136. Lo stato dell'arte del confronto delle simulazioni Monte Carlo con i dati reali è mostrato alla fine del lavoro di tesi: i risultati preliminari evidenziano una buona conoscenza del fondo dell'ER nel rivelatore XENON1T.
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2

Corasaniti, Maria. "Monte Carlo simulation of a neutron veto for the XENONnT experiment." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13974/.

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Анотація:
XENON1T, located at the Laboratori Nazionali del Gran Sasso, is currently the largest experiment for direct dark matter search. It consists of a dual phase TPC filled with 2 tonnes of xenon, and has completed the first science run in January 2017, obtaining the most stringent exclusion limits on the spin-independent WIMP- nucleon interaction cross section for WIMP masses above 10 GeV/c2, with a minimum of 7.7·10−47 cm2 for 35-GeV/c2 WIMPs at 90% confidence level. Currently the experiment is still in data acquisition and aims at a sensitivity of 1.6 · 10−47 cm2 for WIMP masses of 50 GeV/c2 in 2 t·y exposure. A next generation detector, called XENONnT, is already foreseen by the collaboration. It will have a larger TPC with an increased xenon target (∼ 6 t) which will improve the WIMP sensitivity by another order of magnitude. For this purpose, it also requires a very low background level. The expected neutron background for the new designed time projection chamber is ∼5 events in the 4 t fiducial volume, in the nominal 20 ton·year exposure. In this work we present a Monte Carlo simulation study of a Gd-loaded liquid scintillator neutron veto for the XENONnT experiment, with the goal of tagging the background events from radiogenic neutrons. Results indicate that, for a scintillating mixture with 0.1% of gadolinium by weight, and a light collection efficiency of ∼7%, we obtain a neutron rejection factor higher than 80%. This allows to reduce the neutron background by a factor ∼5, in order to be in full agreement with the background goal of the XENONnT experiment: <1 background event in the total exposure.
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3

Rocchetti, Arianna. "MonteCarlo simulation of the XENON1T experiment and first comparison with the Muon Veto data." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13513/.

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Анотація:
L’esperimento XENON1T, in acquisizione dati presso i Laboratori Nazionali del Gran Sasso, è una Time Projection Chamber (TPC) contenente 2 t di xeno liquido ed ha come obiettivo una sensibilità per sezioni d'urto WIMP-nucleone indipendenti dallo spin pari a 1.6 10^(-47) cm^(2), per WIMP di massa 50 GeV/c^(2), in 2 t y. A tale scopo è fondamentale la riduzione di tutte le sorgenti di fondo. Per abbattere il fondo esterno la TPC è inserita all'interno di un Muon Veto: una vasca cilindrica riempita di acqua, dotata di 84 fotomoltiplicatori (PMT) , che funge sia da schermo passivo contro la radiazione esterna (gamma e neutroni), sia da veto per i muoni grazie alla rivelazione della luce Cherenkov da essi prodotta in acqua. In questo lavoro presentiamo uno studio sulle configurazioni di trigger del Muon Veto e sulla sua efficienza. Lo studio è basato sul confronto di simulazioni Monte Carlo con i primi dati del rivelatore. Si ottiene un'efficienza del 99.5% per eventi di muone e del 43% per sciami generati da interazioni del muone nella roccia che circonda la sala sperimentale, e conseguente riduzione degli eventi di background attesi nell'attuale run scientifico a 1.3 10^(-3) eventi. È già previsto dalla collaborazione il futuro upgrade dell'esperimento: XENONnT. Uno studio sulle possibili geometrie della TPC di XENONnT è stato effettuato mediante simulazioni Monte Carlo. Tra le possibili migliorie apportabili a XENONnT vi è la sostituzione degli attuali sensori di luce con fotomoltiplicatori al silicio (SiPM). Le simulazioni mostrano che, mediante una copertura totale della TPC con i SiPM, si ha un aumento dell'efficienza nella collezione di luce (LCE) del 20%. La LCE è un parametro fondamentale per la rivelazione del segnale di luce (S1) nella TPC; in questa configurazione si raggiunge una soglia in energia per rinculi nucleari di circa 3 keV, aumentando in modo significativo la sensibilità dell'esperimento, in particolare per WIMP di piccola massa.
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4

Geis, Christopher Werner [Verfasser]. "The XENON1T water Cherenkov muon veto system and commissioning of the XENON1T Dark Matter experiment / Christopher Werner Geis." Mainz : Universitätsbibliothek Mainz, 2018. http://d-nb.info/116644936X/34.

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5

Massoli, Fabio Valerio <1987&gt. "The XENON1T experiment: Monte Carlo background estimation and sensitivity curves study." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6776/1/Massoli_FabioValerio_tesi.pdf.

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Анотація:
Despite the scientific achievement of the last decades in the astrophysical and cosmological fields, the majority of the Universe energy content is still unknown. A potential solution to the “missing mass problem” is the existence of dark matter in the form of WIMPs. Due to the very small cross section for WIMP-nuleon interactions, the number of expected events is very limited (about 1 ev/tonne/year), thus requiring detectors with large target mass and low background level. The aim of the XENON1T experiment, the first tonne-scale LXe based detector, is to be sensitive to WIMP-nucleon cross section as low as 10^-47 cm^2. To investigate the possibility of such a detector to reach its goal, Monte Carlo simulations are mandatory to estimate the background. To this aim, the GEANT4 toolkit has been used to implement the detector geometry and to simulate the decays from the various background sources: electromagnetic and nuclear. From the analysis of the simulations, the level of background has been found totally acceptable for the experiment purposes: about 1 background event in a 2 tonne-years exposure. Indeed, using the Maximum Gap method, the XENON1T sensitivity has been evaluated and the minimum for the WIMP-nucleon cross sections has been found at 1.87 x 10^-47 cm^2, at 90% CL, for a WIMP mass of 45 GeV/c^2. The results have been independently cross checked by using the Likelihood Ratio method that confirmed such results with an agreement within less than a factor two. Such a result is completely acceptable considering the intrinsic differences between the two statistical methods. Thus, in the PhD thesis it has been proven that the XENON1T detector will be able to reach the designed sensitivity, thus lowering the limits on the WIMP-nucleon cross section by about 2 orders of magnitude with respect to the current experiments.
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6

Massoli, Fabio Valerio <1987&gt. "The XENON1T experiment: Monte Carlo background estimation and sensitivity curves study." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6776/.

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Анотація:
Despite the scientific achievement of the last decades in the astrophysical and cosmological fields, the majority of the Universe energy content is still unknown. A potential solution to the “missing mass problem” is the existence of dark matter in the form of WIMPs. Due to the very small cross section for WIMP-nuleon interactions, the number of expected events is very limited (about 1 ev/tonne/year), thus requiring detectors with large target mass and low background level. The aim of the XENON1T experiment, the first tonne-scale LXe based detector, is to be sensitive to WIMP-nucleon cross section as low as 10^-47 cm^2. To investigate the possibility of such a detector to reach its goal, Monte Carlo simulations are mandatory to estimate the background. To this aim, the GEANT4 toolkit has been used to implement the detector geometry and to simulate the decays from the various background sources: electromagnetic and nuclear. From the analysis of the simulations, the level of background has been found totally acceptable for the experiment purposes: about 1 background event in a 2 tonne-years exposure. Indeed, using the Maximum Gap method, the XENON1T sensitivity has been evaluated and the minimum for the WIMP-nucleon cross sections has been found at 1.87 x 10^-47 cm^2, at 90% CL, for a WIMP mass of 45 GeV/c^2. The results have been independently cross checked by using the Likelihood Ratio method that confirmed such results with an agreement within less than a factor two. Such a result is completely acceptable considering the intrinsic differences between the two statistical methods. Thus, in the PhD thesis it has been proven that the XENON1T detector will be able to reach the designed sensitivity, thus lowering the limits on the WIMP-nucleon cross section by about 2 orders of magnitude with respect to the current experiments.
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7

Di, Gangi Pietro. "Study of the sensitivity of the XENON1T experiment with the profile likelihood method." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8348/.

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Oggi sappiamo che la materia ordinaria rappresenta solo una piccola parte dell'intero contenuto in massa dell'Universo. L'ipotesi dell'esistenza della Materia Oscura, un nuovo tipo di materia che interagisce solo gravitazionalmente e, forse, tramite la forza debole, è stata avvalorata da numerose evidenze su scala sia galattica che cosmologica. Gli sforzi rivolti alla ricerca delle cosiddette WIMPs (Weakly Interacting Massive Particles), il generico nome dato alle particelle di Materia Oscura, si sono moltiplicati nel corso degli ultimi anni. L'esperimento XENON1T, attualmente in costruzione presso i Laboratori Nazionali del Gran Sasso (LNGS) e che sarà in presa dati entro la fine del 2015, segnerà un significativo passo in avanti nella ricerca diretta di Materia Oscura, che si basa sulla rivelazione di collisioni elastiche su nuclei bersaglio. XENON1T rappresenta la fase attuale del progetto XENON, che ha già realizzato gli esperimenti XENON10 (2005) e XENON100 (2008 e tuttora in funzione) e che prevede anche un ulteriore sviluppo, chiamato XENONnT. Il rivelatore XENON1T sfrutta circa 3 tonnellate di xeno liquido (LXe) e si basa su una Time Projection Chamber (TPC) a doppia fase. Dettagliate simulazioni Monte Carlo della geometria del rivelatore, assieme a specifiche misure della radioattività dei materiali e stime della purezza dello xeno utilizzato, hanno permesso di predire con accuratezza il fondo atteso. In questo lavoro di tesi, presentiamo lo studio della sensibilità attesa per XENON1T effettuato tramite il metodo statistico chiamato Profile Likelihood (PL) Ratio, il quale nell'ambito di un approccio frequentista permette un'appropriata trattazione delle incertezze sistematiche. In un primo momento è stata stimata la sensibilità usando il metodo semplificato Likelihood Ratio che non tiene conto di alcuna sistematica. In questo modo si è potuto valutare l'impatto della principale incertezza sistematica per XENON1T, ovvero quella sulla emissione di luce di scintillazione dello xeno per rinculi nucleari di bassa energia. I risultati conclusivi ottenuti con il metodo PL indicano che XENON1T sarà in grado di migliorare significativamente gli attuali limiti di esclusione di WIMPs; la massima sensibilità raggiunge una sezione d'urto σ=1.2∙10-47 cm2 per una massa di WIMP di 50 GeV/c2 e per una esposizione nominale di 2 tonnellate∙anno. I risultati ottenuti sono in linea con l'ambizioso obiettivo di XENON1T di abbassare gli attuali limiti sulla sezione d'urto, σ, delle WIMPs di due ordini di grandezza. Con tali prestazioni, e considerando 1 tonnellata di LXe come massa fiduciale, XENON1T sarà in grado di superare gli attuali limiti (esperimento LUX, 2013) dopo soli 5 giorni di acquisizione dati.
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Vargas, Miguel Ángel [Verfasser], and Christian [Akademischer Betreuer] Weinheimer. "Data analysis in the XENON1T Dark Matter Experiment / Miguel Ángel Vargas ; Betreuer: Christian Weinheimer." Münster : Universitäts- und Landesbibliothek Münster, 2019. http://d-nb.info/1191375730/34.

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9

Di, Gangi Pietro <1989&gt. "Dark Matter Search with the XENON1T Experiment: Background Predictions, Data Analysis and Final Results." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/9044/1/digangi-phd-thesis-final.pdf.

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Анотація:
The XENON1T experiment is currently the most sensitive in the world for the direct search for dark matter (DM). XENON1T employs a dual-phase (liquid-gas) time projection chamber (TPC) featuring 2.0 t liquid xenon (LXe) target mass. The detector is operated in the underground Laboratori Nazionali del Gran Sasso, in Italy. The search for WIMP, the most popular DMcandidate, conducted with the XENON1T detector for a total exposure of 1.0 t-y is presented in this work. The measured background level amounts to $ 82^{+5}_{-3}\rm{(syst)\pm3\rm{(stat)}}\,(\si{t}\cdot\si{y}\cdot\si{keV})^{-1} $, the lowest ever achieved in a direct detection DM experiment. The profile likelihood analysis of data collected in 278.8 live-days finds no significant excess over background. The statistical inference on the WIMP-nucleon spin-independent cross section sets the world-best exclusion limit for WIMP masses above 8\,GeV/c$ ^2 $, with a minimum of $ 4.1\times10^{-47} $\,cm$ ^2 $ at 30\,GeV/c$ ^2 $ and 90\% confidence level.
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10

Brünner, Stefan Augustin [Verfasser], and Manfred [Akademischer Betreuer] Lindner. "Mitigation of 222Rn induced background in the XENON1T dark matter experiment / Stefan Augustin Brünner ; Betreuer: Manfred Lindner." Heidelberg : Universitätsbibliothek Heidelberg, 2017. http://d-nb.info/1178009297/34.

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Книги з теми "XENON1T experiment"

1

Palacios, Hugo Alejandro Contreras. Research and Development of the Purification and Cryogenic Systems for the XENON1T Dark Matter Experiment. [New York, N.Y.?]: [publisher not identified], 2015.

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2

The Cryogenic Infrastructure of the XENON1T Dark Matter Experiment: From Design to Performance during the One Ton-Year WIMP Search. [New York, N.Y.?]: [publisher not identified], 2021.

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3

Zhu, Tianyu. The path to the search for rare event signals in XENON1T and XENONnT dark matter experiments. [New York, N.Y.?]: [publisher not identified], 2022.

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4

Plante, Guillaume. The XENON100 Dark Matter Experiment: Design, Construction, Calibration and 2010 Search Results with Improved Measurement of the Scintillation Response of Liquid Xenon to Low-Energy Nuclear Recoils. [New York, N.Y.?]: [publisher not identified], 2012.

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Частини книг з теми "XENON1T experiment"

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Aprile, Elena. "The Xenon1T Dark Matter Search Experiment." In Springer Proceedings in Physics, 93–96. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7241-0_14.

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Springuel-Huet, M. A. "129Xe NMR of Physisorbed Xenon." In Physical Adsorption: Experiment, Theory and Applications, 331–48. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5672-1_13.

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Springuel-Huet, M. A. "129Xe NMR of Physisorbed Xenon." In Physical Adsorption: Experiment, Theory and Applications, 349–68. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5672-1_14.

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Rupp, Daniela. "Experimental Setup." In Ionization and Plasma Dynamics of Single Large Xenon Clusters in Superintense XUV Pulses, 57–81. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28649-5_2.

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Terskikh, V. V., V. M. Mastikhin, L. G. Okkel’, V. B. Fenelonov, K. I. Zamaraev, H. Hu, and I. E. Wachs. "An Application of 129Xe NMR of Adsorbed Xenon to the Study of Silica-Based Catalysts." In Physical Adsorption: Experiment, Theory and Applications, 571–74. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5672-1_27.

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Ogawa, Shinji. "Liquid Xenon Detector with VUV-Sensitive MPPCs for MEG II Experiment." In Springer Proceedings in Physics, 76–79. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1316-5_14.

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Wolfson, S. K., H. Yonas, D. Gur, E. E. Cook, J. Greenberg, and R. P. Brenner. "Autoregulation Remains Intact during Stable Xenon Inhalation in the Baboon." In Advances in Experimental Medicine and Biology, 865–72. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-8181-5_99.

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Barocchi, F., and M. Zoppi. "Depolarized Interaction Induced Light Scattering Experiments in Argon, Krypton and Xenon." In Phenomena Induced by Intermolecular Interactions, 311–43. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2511-6_15.

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Petzelt, Christian, Juan Osés Prieto, Francisco Fernández Klett, Wolfgang Schmehl, and Wolfgang J. Kox. "Effects of xenon on intracellular Ca2+ release in human endothelial cells." In EBO — Experimental Biology Online Annual 1996/97, 175–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-00932-1_13.

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Yuan, Zhaojun, Yuting Wu, Yanhua Cheng, Chaohao Shang, Yulong Mao, and Yalun Yan. "The Investigation of Overpower ΔT Triggered Mechanism and Optimizing Strategy During Reactor Trip Experiment." In Springer Proceedings in Physics, 107–20. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_11.

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AbstractIn some nuclear power plants, the overpower ΔT protection signal may be triggered during the reactor trip test unexpectedly, which may guide operators’ unexpected operations. A reactor trip protection control logic model is established to simulate the response of overpower ΔT protection channel and the onsite data in the period of reactor trip test, such as nuclear power, ΔI, etc., are used as inputs for this model. The results show that protection signals simulated by the model are almost consistent with the process of triggering protection signal in plant. According to the simulation, the drastic change of core ΔI during the reactor trip process is the main cause of triggering overpower ΔT protection signal. In order to reveal the mechanism of ΔI change in the process of reactor trip and develop corresponding strategies, a two-group three-dimensional transient neutron code (SMART) is adopted to study the physical process of reactor trip test. The effects of initial core state parameters on ΔI evolution during reactor trip are studied. And it is concluded that the initial ΔI and R bank position are the main factors affecting the extreme value of ΔI in the process of reactor trip. To avoid unnecessary overpower ΔT triggering in reactor trip test, a xenon oscillation method is proposed and proved to be effective according to SMART’s simulation results.
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Тези доповідей конференцій з теми "XENON1T experiment"

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Levy, Cecilia. "Shield design for the XENON1T experiment at LSM." In Identification of Dark Matter 2010. Trieste, Italy: Sissa Medialab, 2011. http://dx.doi.org/10.22323/1.110.0004.

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Riedel, Benedikt, Boris Bauermeister, Lincoln Bryant, Jan Conrad, Patrick de Perio, Robert W. Gardner, Luca Grandi, et al. "Distributed Data and Job Management for the XENON1T Experiment." In PEARC '18: Practice and Experience in Advanced Research Computing. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3219104.3219155.

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Selvi, Marco. "Study of the performances of the shield and muon veto of the XENON1T experiment." In Identification of Dark Matter 2010. Trieste, Italy: Sissa Medialab, 2011. http://dx.doi.org/10.22323/1.110.0053.

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BAUDIS, Laura. "WIMP Searches with Liquid Xenon: the XENON10 Experiment." In International Europhysics Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2007. http://dx.doi.org/10.22323/1.021.0006.

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Tziaferi, E., Jean-Michel Alimi, and André Fuözfa. "The XENON100 Dark Matter Experiment." In INVISIBLE UNIVERSE: Proceedings of the Conference. AIP, 2010. http://dx.doi.org/10.1063/1.3462671.

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Aprile, Elena, and Shaaban Khalil. "The XENON100 Dark Matter Experiment." In THE DARK SIDE OF THE UNIVERSE: 4th International Workshop on the Dark Side of the Universe. AIP, 2009. http://dx.doi.org/10.1063/1.3131526.

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Schumann, Marc, and Marvin L. Marshak. "The XENON100 Dark Matter Experiment." In 10TH CONFERENCE ON THE INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS. AIP, 2009. http://dx.doi.org/10.1063/1.3293798.

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SORENSEN, P. F. "BACKGROUNDS AND THRESHOLD OF XENON10 DARK MATTER EXPERIMENT." In Proceedings of the Sixth International Workshop. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770288_0070.

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BERNABEI, R., P. BELLI, F. CAPPELLA, R. CERULLI, F. MONTECCHIA, F. NOZZOLI, A. INCICCHITTI, D. PROSPERI, and C. J. DAI. "THE DAMA PURE LIQUID XENON EXPERIMENT." In Proceedings of the International Workshop. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812705075_0005.

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Behrens, Annika. "Recent Results from the XENON Experiment." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.180.0392.

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Звіти організацій з теми "XENON1T experiment"

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Asenath-Smith, Emily, Emma Ambrogi, Lee Moores, Stephen Newman, and Jonathon Brame. Leveraging chemical actinometry and optical radiometry to reduce uncertainty in photochemical research. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42080.

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Subtle aspects of illumination sources and their characterization methods can introduce significant uncertainty into the data gathered from light-activated experiments, limiting their reproducibility and technology transition. Degradation kinetics of methyl orange (MO) and carbamazepine (CM) under illumination with TiO₂ were used as a case study for investigating the role of incident photon flux on photocatalytic degradation rates. Valerophenone and ferrioxalate actinometry were paired with optical radiometry in three different illumination systems: xenon arc (XE), tungsten halogen (W-H), and UV fluorescent (UV-F). Degradation rate constants for MO and CM varied similarly among the three light systems as k W-H < kiv-F < kXE, implying the same relative photon flux emission by each light. However, the apparent relative photon flux emitted by the different lights varied depending on the light characterization method. This discrepancy is shown to be caused by the spectral distribution present in light emission profiles, as well as absorption behavior of chemical actinometers and optical sensors. Data and calculations for the determination of photon flux from chemical and calibrated optical light characterization is presented, allowing us to interpret photo-degradation rate constants as a function of incident photon flux. This approach enabled the derivation of a calibrated ‘rate-flux’ metric for evaluating and translating data from photocatalysis studies.
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MacDonald, James D., Aharon Abeliovich, Manuel C. Lagunas-Solar, David Faiman, and John Kabshima. Treatment of Irrigation Effluent Water to Reduce Nitrogenous Contaminants and Plant Pathogens. United States Department of Agriculture, July 1993. http://dx.doi.org/10.32747/1993.7568092.bard.

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The contamination of surface and subterranean drinking water supplies with nitrogen-laden agricultural wastewater is a problem of increasing concern in the U.S. and Israel. Through this research, we found that bacteria could utilize common organic wastes (e.g. paper, straw, cotton) as carbon sources under anaerobic conditions, and reduce nitrate concentrations in wastewater to safe levels. Two species of bacteria, Cellulomonas uda and a Comamonas sp., were required for dentitrification. Celulomonas uda degraded cellulose and reduced nitrate to nitrite. In addition, it excreted soluble organic carbon needed as a food source by the Comamonas sp. for completion of denitrification. We also found that recirculated irrigation water contains substantial amounts of fungal inoculum, and that irrigating healthy plants with such water leads to significant levels of root infection. Water can be disinfected with UV, but our experiments showed that Hg-vapor lamps do not possess sufficient energy to kill spores in wastewater containing dissolved organics. Excimer lasers and Xenon flashlamps do possess the needed power levels, but only the laser had a high enough repetition rate to reliably treat large volumes of water. Ozone was highly efficacious, but it's use as a water treatment is probably best suited to moderate or low volume irrigation systems. This research provides critical data needed for the design of effective water denitrification and/or pathogen disinfection systems for different growing operations.
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