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000057721 0247_ $$2doi$$a10.1016/j.nima.2015.07.062
000057721 0248_ $$2sideral$$a91107
000057721 037__ $$aART-2015-91107
000057721 041__ $$aeng
000057721 100__ $$0(orcid)0000-0002-2417-7121$$aRuiz Chóliz, Elisa$$uUniversidad de Zaragoza
000057721 245__ $$aModelling the behaviour of microbulk Micromegas in xenon/trimethylamine gas
000057721 260__ $$c2015
000057721 5060_ $$aAccess copy available to the general public$$fUnrestricted
000057721 5203_ $$aWe model the response of a state of the art micro-hole single-stage charge amplification device ('microbulk' Micromegas) in a gaseous atmosphere consisting of xenon/trimethylamine at various concentrations and pressures. The amplifying structure, made with photo-lithographic techniques similar to those followed in the fabrication of gas electron multipliers (GEMs), consisted of a 100 mu m-side equilateral-triangle pattern with 50 pm-diameter holes placed at its vertexes. Once the primary electrons are guided into the holes by virtue of an optimized field configuration, avalanches develop along the 50 [an-height channels etched out of the original doubly copper-clad polyimide foil. In order to properly account for the strong field gradients at the holes' entrance as well as for the fluctuations of the avalanche process (that ultimately determine the achievable energy resolution), we abandoned the hydrodynamic framework, resorting to a purely microscopic description of the electron trajectories as obtained from elementary cross-sections. We show that achieving a satisfactory description needs additional assumptions about atom-molecule (Penning) transfer reactions and charge recombination to be made. (C) 2015 Elsevier B.V. All rights reserved.
000057721 536__ $$9info:eu-repo/grantAgreement/EUR/FP7/ERC2009-StG-240054$$9info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio-2010/CSD2008-00037$$9info:eu-repo/grantAgreement/ES/MICINN/CPAN-CSD2007-00042$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2009-13697$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2008-03456$$9info:eu-repo/grantAgreement/ES/MINECO/FPA2013-41085-P$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2011-24058
000057721 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000057721 590__ $$a1.2$$b2015
000057721 591__ $$aNUCLEAR SCIENCE & TECHNOLOGY$$b9 / 32 = 0.281$$c2015$$dQ2$$eT1
000057721 591__ $$aINSTRUMENTS & INSTRUMENTATION$$b31 / 56 = 0.554$$c2015$$dQ3$$eT2
000057721 591__ $$aSPECTROSCOPY$$b28 / 43 = 0.651$$c2015$$dQ3$$eT2
000057721 591__ $$aPHYSICS, PARTICLES & FIELDS$$b24 / 28 = 0.857$$c2015$$dQ4$$eT3
000057721 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000057721 700__ $$aGonzález-Díaz, D.
000057721 700__ $$aDiago, A.
000057721 700__ $$0(orcid)0000-0003-3532-7540$$aCastel Pablo, Juan Francisco
000057721 700__ $$0(orcid)0000-0002-8921-910X$$aDafni , Theopisti$$uUniversidad de Zaragoza
000057721 700__ $$aHerrera, D.C.
000057721 700__ $$0(orcid)0000-0001-6327-9369$$aIguaz Gutiérrez, Francisco José$$uUniversidad de Zaragoza
000057721 700__ $$0(orcid)0000-0003-1163-1687$$aGarcía Irastorza, Igor$$uUniversidad de Zaragoza
000057721 700__ $$0(orcid)0000-0002-5352-1884$$aLuzón Marco, Gloria$$uUniversidad de Zaragoza
000057721 700__ $$0(orcid)0000-0002-9951-8680$$aMirallas Sánchez, Héctor
000057721 700__ $$aSahin, O.
000057721 700__ $$aVeenhof, R.
000057721 7102_ $$12004$$2390$$aUniversidad de Zaragoza$$bDepartamento de Física Teórica$$cFísica Atómica, Molecular y Nuclear
000057721 773__ $$g799 (2015), 137-146$$pNucl. instrum. methods phys. res., Sect. A$$tNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT$$x0168-9002
000057721 8564_ $$s1938937$$uhttp://zaguan.unizar.es/record/57721/files/texto_completo.pdf$$yVersión publicada
000057721 8564_ $$s114977$$uhttp://zaguan.unizar.es/record/57721/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000057721 909CO $$ooai:zaguan.unizar.es:57721$$particulos$$pdriver
000057721 951__ $$a2016-11-28-12:09:02
000057721 980__ $$aARTICLE