Related papers: A Rn-220 source for the calibration of low-backgro…

The 16N Calibration Source for the Sudbury Neutrino Observatory

A calibration source using gamma-rays from 16N (t_1/2 = 7.13 s) beta-decay has been developed for the Sudbury Neutrino Observatory (SNO) for the purpose of energy and other calibrations. The 16N is produced via the (n,p) reaction on 16O in…

Nuclear Experiment · Physics 2009-11-07 M. R. Dragowsky , A. Hamer , Y. D. Chan , R. Deal , E. D. Earle , W. Frati , E. Gaudette , A. Hallin , C. Hearns , J. Hewett , G. Jonkmans , Y. Kajiyama , A. B. McDonald , B. A. Moffat , E. B. Norman , B. Sur , N. Tagg

X-Ray Detection of an Obscured Active Galactic Nucleus in a z=3.09 Radio-quiet Ly-alpha Nebula

We present evidence for a highly obscured X-ray source in one of two giant Ly-alpha emission nebulae in the z=3.09 proto-cluster region SSA22. Neither Ly-alpha nebula is associated with significant radio emission. While one has a…

Astrophysics · Physics 2009-11-10 Antara Basu-Zych , Caleb Scharf

325-MHz observations of the ELAIS-N1 field using the Giant Metrewave Radio Telescope

We present observations of the European Large-Area {\it ISO} Survey-North 1 (ELAIS-N1) at 325 MHz using the Giant Metrewave Radio Telescope (GMRT), with the ultimate objective of identifying active galactic nuclei and starburst galaxies and…

Astrophysics · Physics 2009-11-13 S. K. Sirothia , M . Dennefeld , D. J. Saikia , H. Dole , F. Ricquebourg , J. Roland

The NEXT-100 Detector

The NEXT collaboration is dedicated to the study of double beta decays of $^{136}$Xe using a high-pressure gas electroluminescent time projection chamber. This advanced technology combines exceptional energy resolution ($\leq 1\%$ FWHM at…

Instrumentation and Detectors · Physics 2026-02-12 NEXT Collaboration , C. Adams , H. Almazán , V. Álvarez , A. I. Aranburu , L. Arazi , I. J. Arnquist , F. Auria-Luna , S. Ayet , Y. Ayyad , C. D. R. Azevedo , K. Bailey , F. Ballester , J. E. Barcelon , M. del Barrio-Torregrosa , A. Bayo , J. M. Benlloch-Rodríguez , F. I. G. M. Borges , A. Brodoline , N. Byrnes , A. Castillo , E. Church , L. Cid , M. Cid , X. Cid , C. A. N. Conde , C. Cortes-Parra , F. P. Cossío , R. Coupe , E. Dey , P. Dietz , C. Echeverria , M. Elorza , R. Esteve , R. Felkai , L. M. P. Fernandes , P. Ferrario , F. W. Foss , Z. Freixa , J. García-Barrena , J. J. Gómez-Cadenas , J. W. R. Grocott , R. Guenette , J. Hauptman , C. A. O. Henriques , J. A. Hernando Morata , P. Herrero-Gómez , V. Herrero , C. Hervés Carrete , Y. Ifergan , A. F. B. Isabel , B. J. P. Jones , F. Kellerer , L. Larizgoitia , A. Larumbe , P. Lebrun , F. Lopez , N. López-March , R. Madigan , R. D. P. Mano , A. Marauri , A. P. Marques , J. Martín-Albo , A. Martínez , G. Martínez-Lema , M. Martínez-Vara , R. L. Miller , K. Mistry , J. Molina-Canteras , F. Monrabal , C. M. B. Monteiro , F. J. Mora , K. E. Navarro , P. Novella , D. R. Nygren , E. Oblak , I. Osborne , J. Palacio , B. Palmeiro , A. Para , I. Parmaksiz , A. Pazos , J. Pelegrin , M. Pérez Maneiro , M. Querol , J. Renner , I. Rivilla , C. Rogero , L. Rogers , B. Romeo , C. Romo-Luque , E. Ruiz-Chóliz , P. Saharia , F. P. Santos , J. M. F. dos Santos , M. Seemann , I. Shomroni , A. L. M. Silva , P. A. O. C. Silva , A. Simón , S. R. Soleti , M. Sorel , J. Soto-Oton , J. M. R. Teixeira , S. Teruel-Pardo , J. F. Toledo , C. Tonnelé , S. Torelli , J. Torrent , A. Trettin , P. R. G. Valle , M. Vanga , P. Vázquez Cabaleiro , J. F. C. A. Veloso , J. D. Villamil , J. Waiton , A. Yubero-Navarro

Search for point sources and diffuse emission from the Galactic plane with the HEGRA-IACT-system

The HEGRA-IACT-system with a FoV of ~1.5 deg radius has been used for surveying one quater of the Galactic disc in respect to point sources, moderately extended sources and for diffuse emission in the energy range above 1 TeV. In total 140…

Astrophysics · Physics 2007-05-23 H. Lampeitl , K. Bernloehr , A. Daum , W. Hofmann , A. Konopelko , G. Puehlhofer , HEGRA-Collaboration

Near-Intrinsic Energy Resolution for 30 to 662 keV Gamma Rays in a High Pressure Xenon Electroluminescent TPC

We present the design, data and results from the NEXT prototype for Double Beta and Dark Matter (NEXT-DBDM) detector, a high-pressure gaseous natural xenon electroluminescent time projection chamber (TPC) that was built at the Lawrence…

Instrumentation and Detectors · Physics 2012-11-20 NEXT Collaboration , V. Álvarez , F. I. G. M. Borges , S. Cárcel , J. Castel , S. Cebrián , A. Cervera , C. A. N. Conde , T. Dafni , T. H. V. T. Dias , J. Díaz , M. Egorov , R. Esteve , P. Evtoukhovitch , L. M. P. Fernandes , P. Ferrario , A. L. Ferreira , E. D. C. Freitas , V. M. Gehman , A. Gil , A. Goldschmidt , H. Gómez , J. J. Gómez-Cadenas , D. González-Díaz , R. M. Gutiérrez , J. Hauptman , J. A. Hernando Morata , D. C. Herrera , F. J. Iguaz , I. G. Irastorza , M. A. Jinete , L. Labarga , A. Laing , I. Liubarsky , J. A. M. Lopes , D. Lorca , M. Losada , G. Luzón , A. Marí , J. Martín-Albo , A. Martínez , T. Miller , A. Moiseenko , F. Monrabal , C. M. B. Monteiro , F. J. Mora , L. M. Moutinho , J. Muñoz Vidal , H. Natal da Luz , G. Navarro , M. Nebot , D. Nygren , C. A. B. Oliveira , R. Palma , J. Pérez , J. L. Pérez Aparicio , J. Renner , L. Ripoll , A. Rodríguez , J. Rodríguez , F. P. Santos , J. M. F. dos Santos , L. Segui , L. Serra , D. Shuman , A. Simón , C. Sofka , M. Sorel , J. F. Toledo , A. Tomás , J. Torrent , Z. Tsamalaidze , D. Vázquez , J. F. C. A. Veloso , J. A. Villar , R. Webb , J. T White , N. Yahlali

Online $^{222}$Rn removal by cryogenic distillation in the XENON100 experiment

We describe the purification of xenon from traces of the radioactive noble gas radon using a cryogenic distillation column. The distillation column is integrated into the gas purification loop of the XENON100 detector for online radon…

Instrumentation and Detectors · Physics 2017-06-05 XENON Collaboration , E. Aprile , J. Aalbers , F. Agostini , M. Alfonsi , F. D. Amaro , M. Anthony , F. Arneodo , P. Barrow , L. Baudis , B. Bauermeister , M. L. Benabderrahmane , T. Berger , P. A. Breur , A. Brown , E. Brown , S. Bruenner , G. Bruno , R. Budnik , L. Bütikofer , J. Calvén , J. M. R. Cardoso , M. Cervantes , D. Cichon , D. Coderre , A. P. Colijn , J. Conrad , J. P. Cussonneau , M. P. Decowski , P. de Perio , P. Di Gangi , A. Di Giovanni , S. Diglio , E. Duchovni , G. Eurin , J. Fei , A. D. Ferella , A. Fieguth , D. Franco , W. Fulgione , A. Gallo Rosso , M. Galloway , F. Gao , M. Garbini , C. Geis , L. W. Goetzke , L. Grandi , Z. Greene , C. Grignon , C. Hasterok , E. Hogenbirk , R. Itay , B. Kaminsky , G. Kessler , A. Kish , H. Landsman , R. F. Lang , D. Lellouch , L. Levinson , M. Le Calloch , Q. Lin , S. Lindemann , M. Lindner , J. A. M. Lopes A. Manfredini , I. Maris , T. Marrodán Undagoitia , J. Masbou , F. V. Massoli , D. Masson , D. Mayani , Y. Meng , M. Messina , K. Micheneau , B. Miguez , A. Molinario , M. Murra , J. Naganoma , K. Ni , U. Oberlack , S. E. A. Orrigo , P. Pakarha , B. Pelssers , R. Persiani , F. Piastra , J. Pienaar , M. -C. Piro , V. Pizzella , G. Plante , N. Priel , L. Rauch , S. Reichard , C. Reuter , A. Rizzo , S. Rosendahl , N. Rupp , R. Saldanha , J. M. F. dos Santos , G. Sartorelli , M. Scheibelhut , S. Schindler , J. Schreiner , M. Schumann , L. Scotto Lavina , M. Selvi , P. Shagin , E. Shockley , M. Silva , H. Simgen , M. v. Sivers , A. Stein , D. Thers , A. Tiseni , G. Trinchero , C. Tunnell , N. Upole , H. Wang , Y. Wei , C. Weinheimer , J. Wulf , J. Ye , Y. Zhang , I. Cristescu

X-ray imaging of the ionisation cones in NGC 5252

The physical conditions of the gas forming the narrow line regions (NLR) in active galactic nuclei (AGN) have been extensively studied in the optical band. We take advantage of the spectacular extension ($\sim$15") of the NLR in the type II…

Astrophysics of Galaxies · Physics 2015-05-18 M. Dadina , M. Guainazzi , M. Cappi , S. Bianchi , C. Vignali , G. Malaguti , A. Comastri

Precision $\bar \nu_e$-electron Scattering Measurements with IsoDAR to Search for New Physics

IsoDAR provides a pure and intense $\bar \nu_e$ source with an average energy of 6.5 MeV produced through $^8$Li $\beta$-decay. This source can be paired with a large scintillator detector, such as KamLAND, to produce a sample of $\bar…

High Energy Physics - Experiment · Physics 2014-04-23 J. M. Conrad , M. H. Shaevitz , I. Shimizu , J. Spitz , M. Toups , L. Winslow

Discovery of the neutron star nature of SLX 1737-282

SLX 1737-282 is a persistent moderately bright X-ray source 1.2 deg from the Galactic center. X-ray observations with the Wide Field Cameras on BeppoSAX have for the first time revealed the true nature of SLX 1737-282: a 15-min long…

Astrophysics · Physics 2009-11-07 J. J. M. in 't Zand , F. Verbunt , E. Kuulkers , C. Markwardt , A. Bazzano , M. Cocchi , R. Cornelisse , J. Heise , L. Natalucci , P. Ubertini

The CERN n TOF NEAR station for astrophysics- and application-related neutron activation measurements

A new experimental area, the NEAR station, has recently been built at the CERN n TOF facility, at a short distance from the spallation target (1.5 m). The new area, characterized by a neutron beam of very high flux, has been designed with…

Instrumentation and Detectors · Physics 2022-09-13 N. Patronis , A. Mengoni , N. Colonna , M. Cecchetto , C. Domingo-Pardo , O. Aberle , J. Lerendegui-Marco , G. Gervino , M. E. Stamati , S. Goula , A. P. Bernardes , M. Mastromarco , A. Manna , R. Vlastou , C. Massimi , M. Calviani , V. Alcayne , S. Altieri , S. Amaducci , J. Andrzejewski , V. Babiano-Suarez , M. Bacak , J. Balibrea , C. Beltrami , S. Bennett , E. Berthoumieux , M. Boromiza , D. Bosnar , M. Caamano , F. Calvino , D. Cano-Ott , A. Casanovas , F. Cerutti , G. Cescutti , S. Chasapoglou , E. Chiaveri , P. Colombetti , P. Console Camprini , G. Cortes , M. A. Cortes-Giraldo , L. Cosentino , S. Cristallo , S. Dellmann , M. Di Castro , S. Di Maria , M. Diakaki , M. Dietz , R. Dressler , E. Dupont , I. Duran , Z. Eleme , S. Fargier , B. Fernandez , B. Fernandez-Dominguez , P. Finocchiaro , S. Fiore , V. Furman , F. Garcia-Infantes , A. Gawlik-Ramiega , S. Gilardoni , E. Gonzalez-Romero , C. Guerrero , F. Gunsing , C. Gustavino , J. Heyse , W. Hillman , D. G. Jenkins , E. Jericha , A. Junghans , Y. Kadi , K. Kaperoni , G. Kaur , A. Kimura , I. Knapova , M. Kokkoris , Y. Kopatch , M. Krticka , N. Kyritsis , I. Ladarescu , C. Lederer-Woods , G. Lerner , T. Martınez , A. Masi , P. Mastinu , E. A. Maugeri , A. Mazzone , E. Mendoza , P. M. Milazzo , R. Mucciola , F. Murtas , E. Musacchio-Gonzalez , A. Musumarra , A. Negret , A. Perez de Rada , P. Perez-Maroto , J. A. Pavon-Rodrıguez , M. G. Pellegriti , J. Perkowski , C. Petrone , E. Pirovano , J. Plaza , S. Pomp , I. Porras , J. Praena , J. M. Quesada , R. Reifarth , D. Rochman , Y. Romanets , C. Rubbia , A. Sanchez , M. Sabate-Gilarte , P. Schillebeeckx , D. Schumann , A. Sekhar , A. G. Smith , N. V. Sosnin , A. Sturniolo , G. Tagliente , D. Tarrio , P. Torres-Sanchez , S. Urlass , E. Vagena , S. Valenta , V. Variale , P. Vaz , G. Vecchio , D. Vescovi , V. Vlachoudis , T. Wallner , P. J. Woods , T. Wright , R. Zarrella , P. Zugec

The Physical Nature of the Off-centered Extended Emission Associated with the Little Red Dots

A significant fraction of little red dots (LRDs) exhibit nearby extended emission of unknown origin. If physically associated with the LRD, this component may trace stellar emission from an off-centered host galaxy, neighboring companions,…

Astrophysics of Galaxies · Physics 2025-05-07 Chang-Hao Chen , Luis C. Ho , Ruancun Li , Kohei Inayoshi

Mid-infrared spectral evidence for a luminous dust enshrouded source in Arp220

We have re-analyzed the 6-12 micron ISO spectrum of the ultra-luminous infrared galaxy Arp220 with the conclusion that it is not consistent with that of a scaled up version of a typical starburst. Instead, both template fitting with spectra…

Astrophysics · Physics 2009-11-10 H. W. W. Spoon , A. F. M. Moorwood , D. Lutz , A. G. G. M. Tielens , R. Siebenmorgen , J. V. Keane

A Chandra X-ray survey of nearby dwarf starburst galaxies: I. Data reduction and results

(abridged) We present an analysis of Chandra X-ray observations of a sample of eight dwarf starburst galaxies (I Zw 18, VII Zw 403, NGC 1569, NGC 3077, NGC 4214, NGC 4449, NGC 5253, and He 2-10). Extended, diffuse X-ray emission is detected…

Astrophysics · Physics 2009-11-10 Juergen Ott , Fabian Walter , Elias Brinks

Experimental setup and procedure for the measurement of the 7Be(n,{\alpha}){\alpha} reaction at n_TOF

The newly built second experimental area EAR2 of the n_TOF spallation neutron source at CERN allows to perform (n, charged particles) experiments on short-lived highly radioactive targets. This paper describes a detection apparatus and the…

Instrumentation and Detectors · Physics 2016-06-01 L. Cosentino , A. Musumarra , M. Barbagallo , A. Pappalardo , N. Colonna , L. Damone , M. Piscopo , P. Finocchiaro , E. Maugeri , S. Heinitz , D. Schumann , R. Dressler , N. Kivel , O. Aberle , J. Andrzejewski , L. Audouin , M. Ayranov , M. Bacak , S. Barros , J. Balibrea-Correa , V. Beecares , F. Becvar , C. Beinrucker , E. Berthoumieux , J. Billowes , D. Bosnar , M. Brugger , M. Caamano , M. Calviani , F. Calvino , D. Cano-Ott , R. Cardella , A. Casanovas , D. M. Castelluccio , F. Cerutti , Y. H. Chen , E. Chiaveri , G. Cortes , M. A. Cortes-Giraldo , M. Diakaki , C. Domingo-Pardo , E. Dupont , I. Duran , B. Fernandez-Dominguez , A. Ferrari , P. Ferreira , W. Furman , S. Ganesan , A. Garcia-Rios , A. Gawlik , I. Gheorghe , T. Glodariu , K. Goebel , I. F. Goncalves , E. Gonzalez-Romero , E. Griesmayer , C. Guerrero , F. Gunsing , H. Harada , T. Heftrich , J. Heyse , D. G. Jenkins , E. Jericha , F. Kaeppeler , T. Katabuchi , P. Kavrigin , A. Kimura , M. Kokkoris , M. Krticka , E. Leal-Chidonca , J. Lerendegui , C. Lederer , H. Leeb , S. Lo Meo , S. Lonsdale , R. Losito , D. Macina , J. Marganiec , T. Martinez , C. Massimi , P. Mastinu , M. Mastromarco , F. Matteucci , A. Mazzone , E. Mendoza , A. Mengoni , P. M. Milazzo , F. Mingrone , M. Mirea , S. Montesano , R. Nolte , A. Oprea , N. Patronis , A. Pavlik , J. Perkowski , J. Praena , J. Quesada , K. Rajeev , T. Rauscher , R. Reifarth , A. Riego-Perez , P. Rout , C. Rubbia , J. Ryan , M. Sabate-Gilarte , A. Saxena , P. Schillebeeckx , S. Schmidt , P. Sedyshev , A. Stamatopoulos , G. Tagliente , J. L. Tain , A. Tarifeno-Saldivia , L. Tassan-Got , A. Tsinganis , S. Valenta , G. Vannini , V. Variale , P. Vaz , A. Ventura , V. Vlachoudis , R. Vlastou , J. Vollaire , A. Wallner , S. Warren , M. Weigand , C. Weiß , C. Wolf , P. J. Woods , T. Wright , P. Zugec , n_TOF collaboration

A Chandra Deep X-ray Exposure on the Galactic Plane and Near Infrared Identification

Using the Chandra ACIS-I instruments, we have carried out a deep X-ray observation on the Galactic plane region at (l,b) ~ (28.5, 0.0), where no discrete X-ray sources have been known previously. We have detected, as well as strong diffuse…

Astrophysics · Physics 2007-05-23 K. Ebisawa , A. Paizis , T. J. -L. Couvoisier , P. Dubath , M. Tsujimoto , K. Hamaguchi , V. Beckmann , A. Bamba , A. Senda , M. Ueno , H. Kaneda , Y. Maeda , G. Sato , S. Yamauchi , R. Cutri , E. Nishihara

RF acceleration of ultracold electron bunches

The ultrafast and ultracold electron source, based on laser cooling and trapping of an atomic gas and its subsequent near-threshold photoionization, is capable of generating electron bunches with a high transverse brightness at energies of…

Accelerator Physics · Physics 2023-06-09 D. F. J. Nijhof , T. C. H. de Raadt , J. V. Huijts , J. G. H. Franssen , P. H. A. Mutsaers , O. J. Luiten

Gain limits of a Thick GEM in high-purity Ne, Ar and Xe

The dependence of the avalanche charge gain in Thick Gas Electron Multipliers (THGEM) on the purity of Ne, Ar and Xe filling gases was investigated. The gain, measured with alpha-particles in standard conditions (atmospheric pressure, room…

Instrumentation and Detectors · Physics 2014-11-20 J. Miyamoto , A. Breskin , V. Peskov

Modelling the ENLR in NGC1068

We present photoionization models of the high excitation gas in the Extended Narrow Line Region (ENLR) of NGC1068. The ENLR line fluxes have been calculated allowing for attenuation of the central-source ionizing continuum as a function of…

Astrophysics · Physics 2007-05-23 L. S. Nazarova , P. T. O'Brien , M. J. Ward , P. M. Gondhalekar

X-raying Abell 2125 -- a Large-scale Hierarchical Complex of Galaxies and Hot Gas

We present an 82 ksec Chandra ACIS-I observation of a large-scale hierarchical complex, which consists of various clusters/groups of galaxies and low-surface brightness X-ray emission at z = 0.247. This high-resolution {\sl Chandra}…

Astrophysics · Physics 2009-11-10 Q. Daniel Wang , Frazer Owen , Michael Ledlow