000301889 001__ 301889 000301889 005__ 20211110134751.0 000301889 0247_ $$2datacite_doi$$a10.3204/PUBDB-2016-02948 000301889 037__ $$aPUBDB-2016-02948 000301889 041__ $$aEnglish 000301889 0881_ $$aDESY-M-00-04ZD 000301889 088__ $$2DESY$$aDESY-M-00-04ZD 000301889 1001_ $$0P:(DE-HGF)0$$aHillert, S.$$b0$$eCorresponding author 000301889 1112_ $$aThe 7th European Particle Accelerator Conference EPAC 2000$$cVienna$$d2000-06-26 - 2000-06-30$$gEPAC 2000$$wAustria 000301889 245__ $$aThe Beam Trajectory Monitor for the TTF-FEL at DESY 000301889 260__ $$aHamburg$$bDESY$$c2000 000301889 300__ $$a1803-1805 000301889 3367_ $$2ORCID$$aCONFERENCE_PAPER 000301889 3367_ $$033$$2EndNote$$aConference Paper 000301889 3367_ $$2BibTeX$$aINPROCEEDINGS 000301889 3367_ $$2DRIVER$$aconferenceObject 000301889 3367_ $$0PUB:(DE-HGF)29$$2PUB:(DE-HGF)$$aReport$$mreport 000301889 3367_ $$2DataCite$$aOutput Types/Conference Paper 000301889 3367_ $$0PUB:(DE-HGF)8$$2PUB:(DE-HGF)$$aContribution to a conference proceedings$$bcontrib$$mcontrib$$s1473424348_14072 000301889 520__ $$aThe design, construction and first tests of a prototype of the beam trajectory monitor at the TTF-FEL are presented. With this monitor the off-axis spontaneous undulator radiation is imaged through a set of pinholes onto silicon pixel detectors. This allows to measure simultaneously 12 points of the transverse beam position with an accuracy of better than 10 $\mu$m over a length of 5 m. The prototype consists of a pinhole mask and the pixel detectors accurately placed to each other inside a vacuum chamber which is held under beam vacuum. We first present the design and the production technology of the silicon pixel detector. Then the optimization of the pinhole mask and its realization using lithographic methods are discussed. To determine its spatial accuracy the detector is scanned using a laser test stand and a low-intensity electron beam of an electron microscope. The symmetry axis of the detector defines a straight line within 0.4 $\mu$m. Additionally, the electron microscope is used to study the radiation hardness of the detector. The sensitivity of the detector to low energy X-rays is measured using a vacuum ultraviolet beam at the synchrotron light source HASYLAB. Finally first calibration measurementsof the BTM prototype detectors are shown. 000301889 536__ $$0G:(DE-H253)POF1-HGF-No-Prog-20130405$$aNo facility / HGF program None (POF1-890)$$cPOF1-890$$x0 000301889 588__ $$aDataset connected to INSPIRE 000301889 650_7 $$2INSPIRE$$atalk: Vienna 2000/06/26 000301889 650_7 $$2INSPIRE$$aelectron positron: linear collider 000301889 650_7 $$2INSPIRE$$alinear collider: proposed 000301889 650_7 $$2INSPIRE$$afree electron laser 000301889 650_7 $$2INSPIRE$$abeam monitoring: beam position 000301889 650_7 $$2INSPIRE$$amagnet: undulator 000301889 650_7 $$2INSPIRE$$asynchrotron radiation 000301889 650_7 $$2INSPIRE$$asemiconductor detector: pixel 000301889 650_7 $$2INSPIRE$$aradiation: damage 000301889 650_7 $$2INSPIRE$$aDESY TESLA Linac 000301889 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0 000301889 7001_ $$0P:(DE-HGF)0$$aHoll, P.$$b1 000301889 7001_ $$0P:(DE-H253)PIP1012197$$aLechner, P.$$b2 000301889 7001_ $$0P:(DE-HGF)0$$aIschebeck, R.$$b3 000301889 7001_ $$0P:(DE-H253)PIP1002264$$aKarstensen, S.$$b4$$udesy 000301889 7001_ $$0P:(DE-H253)PIP1020806$$aMuller, U. 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