نتایج جستجو برای: high natural background radiation hnbr

تعداد نتایج: 3249405  

Journal: :Radiation protection dosimetry 2001
A Geranios M Kakoulidou P Mavroidi M Moschou S Fischer I Burian J Holecek

A national radon survey is still lacking for Greece. Some groups have carried out several more or less local or extended radon surveys and valuable experience has been gained. After the first preliminary survey carried out by our group, where 500 Kodak LR-115 etched track detectors were placed in Greek schools and dwellings for one year, indoor radon measurements were continued by placing the s...

1998
Lajos Diósi

The calculations of Guang-Wen Ma’s recent Letter [Phys.Lett. A239, (1998) 209] contain an easily detectable error which makes his conclusions irrelevant. ∗E-mail: [email protected]

1995
Arnon Dar Nir J. Shaviv

Blazar emission of gamma rays and cosmic ray production of gamma rays in gas-rich clusters have been proposed recently as alternative sources of the high energy extragalactic diffuse gamma ray background radiation. We show that these sources also produce a very different high energy extragalactic diffuse neutrino background radiation. This neutrino background may be detected by the new generati...

2008
Raghavan Rangarajan

An epoch of accelerated expansion, or inflation, in the early universe solves several cosmological problems. While there are many models of inflation only recently has it become possible to discriminate between some of the models using observations of the cosmic microwave background radiation and large-scale structure. In this talk, we discuss inflation and its observational consequences, and t...

2002
Joseph Silk

I review the discovery of the temperature fluctuations in the cosmic microwave background radiation. The underlying theory and the implications for cosmology are reviewed, and I describe the prospects for future progress.

Journal: :Blood 1958
E E SCHWARTZ A C UPTON

S INCE 1920 there has been a marke(l increase in the recorded incidence of leukemia and the lymphomas. At the same time, exposure to iomiizing radiation has been shown to increase the frequency of these diseases. Consequently there is now mounting concern about tile gradually rising level of background radiation in the environment. In this paper, the incidence of leukemia and the Ivniphomnas in...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Sayaka Wakayama Yuko Kamada Kaori Yamanaka Takashi Kohda Hiromi Suzuki Toru Shimazu Motoki N Tada Ikuko Osada Aiko Nagamatsu Satoshi Kamimura Hiroaki Nagatomo Eiji Mizutani Fumitoshi Ishino Sachiko Yano Teruhiko Wakayama

We would like to thank Ferlazzo and Foray (1) for their very important comments and suggestions. We will keep in mind that “scientists should take particular care to justify their methodology and moderate their conclusions.” One concern of Ferlazzo and Foray (1) is that our control experiment entailed exposure to the ground radiation of Japan, rather than to a high natural radiation background ...

Journal: :Science 2007
J Abraham P Abreu M Aglietta C Aguirre D Allard I Allekotte J Allen P Allison C Alvarez J Alvarez-Muñiz M Ambrosio L Anchordoqui S Andringa A Anzalone C Aramo S Argirò K Arisaka E Armengaud F Arneodo F Arqueros T Asch H Asorey P Assis B S Atulugama J Aublin M Ave G Avila T Bäcker D Badagnani A F Barbosa D Barnhill S L C Barroso P Bauleo J Beatty T Beau B R Becker K H Becker J A Bellido S Benzvi C Berat T Bergmann P Bernardini X Bertou P L Biermann P Billoir O Blanch-Bigas F Blanco P Blasi C Bleve H Blümer M Bohácová C Bonifazi R Bonino M Boratav J Brack P Brogueira W C Brown P Buchholz A Bueno N G Busca K S Caballero-Mora B Cai D V Camin R Caruso W Carvalho A Castellina O Catalano G Cataldi L Cazón-Boado R Cester J Chauvin A Chiavassa J A Chinellato A Chou J Chye P D J Clark R W Clay E Colombo R Conceição B Connolly F Contreras J Coppens A Cordier U Cotti S Coutu C E Covault A Creusot J Cronin S Dagoret-Campagne K Daumiller B R Dawson R M de Almeida C De Donato S J de Jong G De La Vega W J M de Mello Junior J R T de Mello Neto I De Mitri V de Souza L Del Peral O Deligny A Della Selva C Delle Fratte H Dembinski C Di Giulio J C Diaz C Dobrigkeit J C D'Olivo D Dornic A Dorofeev J C Dos Anjos M T Dova D D'Urso M A Duvernois R Engel L Epele M Erdmann C O Escobar A Etchegoyen P Facal San Luis H Falcke G Farrar A C Fauth N Fazzini A Fernández F Ferrer S Ferry B Fick A Filevich A Filipcic I Fleck R Fonte C E Fracchiolla W Fulgione B García D García Gámez D Garcia-Pinto X Garrido H Geenen G Gelmini H Gemmeke P L Ghia M Giller H Glass M S Gold G Golup F Gomez Albarracin M Gómez Berisso R Gómez Herrero P Gonçalves M Gonçalves do Amaral D Gonzalez J G Gonzalez M González D Góra A Gorgi P Gouffon V Grassi A Grillo C Grunfeld Y Guardincerri F Guarino G P Guedes J Gutiérrez J D Hague J C Hamilton P Hansen D Harari S Harmsma J L Harton A Haungs T Hauschildt M D Healy T Hebbeker D Heck C Hojvat V C Holmes P Homola J Hörandel A Horneffer M Horvat M Hrabovsky T Huege M Iarlori A Insolia F Ionita A Italiano M Kaducak K H Kampert B Keilhauer E Kemp R M Kieckhafer H O Klages M Kleifges J Kleinfeller R Knapik J Knapp D-H Koang A Kopmann A Krieger O Krömer D Kümpel N Kunka A Kusenko G La Rosa C Lachaud B L Lago D Lebrun P Lebrun J Lee M A Leigui de Oliveira A Letessier-Selvon M Leuthold I Lhenry-Yvon R López A Lopez Agüera J Lozano Bahilo M C Maccarone C Macolino S Maldera M Malek G Mancarella M E Manceñido D Mandat P Mantsch A G Mariazzi I C Maris D Martello J Martínez O Martínez Bravo H J Mathes J Matthews J A J Matthews G Matthiae D Maurizio P O Mazur T McCauley M McEwen R R McNeil M C Medina G Medina-Tanco A Meli D Melo E Menichetti A Menschikov Chr Meurer R Meyhandan M I Micheletti G Miele W Miller S Mollerach M Monasor D Monnier Ragaigne F Montanet B Morales C Morello E Moreno J C Moreno C Morris M Mostafá M A Muller R Mussa G Navarra J L Navarro S Navas L Nellen C Newman-Holmes D Newton T Nguyen Thi N Nierstenhöfer D Nitz D Nosek L Nozka J Oehlschläger T Ohnuki A Olinto V M Olmos-Gilbaja M Ortiz S Ostapchenko L Otero D Pakk Selmi-Dei M Palatka J Pallotta G Parente E Parizot S Parlati S Pastor M Patel T Paul V Pavlidou K Payet M Pech J Pekala R Pelayo I M Pepe L Perrone S Petrera P Petrinca Y Petrov Dieppham Ngoc Dongpham Ngoc T N Pham Thi A Pichel R Piegaia T Pierog M Pimenta T Pinto V Pirronello O Pisanti M Platino J Pochon T A Porter P Privitera M Prouza E J Quel J Rautenberg S Reucroft B Revenu F A S Rezende J Rídky S Riggi M Risse C Rivière V Rizi M Roberts C Robledo G Rodriguez D Rodríguez Frías J Rodriguez Martino J Rodriguez Rojo I Rodriguez-Cabo G Ros J Rosado M Roth B Rouillé-d'Orfeuil E Roulet A C Rovero F Salamida H Salazar G Salina F Sánchez M Santander C E Santo E M Santos F Sarazin S Sarkar R Sato V Scherini H Schieler F Schmidt T Schmidt O Scholten P Schovánek F Schüssler S J Sciutto M Scuderi A Segreto D Semikoz M Settimo R C Shellard I Sidelnik B B Siffert G Sigl N Smetniansky De Grande A Smialkowski R Smída A G K Smith B E Smith G R Snow P Sokolsky P Sommers J Sorokin H Spinka R Squartini E Strazzeri A Stutz F Suarez T Suomijärvi A D Supanitsky M S Sutherland J Swain Z Szadkowski J Takahashi A Tamashiro A Tamburro O Tascau R Tcaciuc D Thomas R Ticona J Tiffenberg C Timmermans W Tkaczyk C J Todero Peixoto B Tomé A Tonachini D Torresi P Travnicek A Tripathi G Tristram D Tscherniakhovski M Tueros V Tunnicliffe R Ulrich M Unger M Urban J F Valdés Galicia I Valiño L Valore A M van den Berg V van Elewyck R A Vázquez D Veberic A Veiga A Velarde T Venters V Verzi M Videla L Villaseñor S Vorobiov L Voyvodic H Wahlberg O Wainberg T Waldenmaier P Walker D Warner A A Watson S Westerhoff G Wieczorek L Wiencke B Wilczynska H Wilczynski C Wileman M G Winnick H Wu B Wundheiler J Xu T Yamamoto P Younk E Zas D Zavrtanik M Zavrtanik A Zech A Zepeda M Ziolkowski B Kégl

Using data collected at the Pierre Auger Observatory during the past 3.7 years, we demonstrated a correlation between the arrival directions of cosmic rays with energy above 6 x 10(19) electron volts and the positions of active galactic nuclei (AGN) lying within approximately 75 megaparsecs. We rejected the hypothesis of an isotropic distribution of these cosmic rays with at least a 99% confide...

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