TY  - JOUR
A1  - Ziemons, Karl
A1  - Heinrichs, U.
A1  - Streun, M.
A1  - Pietrzyk, U.
T1  - Validation of GEANT3 simulation studies with a dual-head PMT ClearPET™ prototype
JF  - 2003 IEEE Nuclear Science Symposium Conference Record, Vol. 5
N2  - The ClearPET™ project is proposed by working groups of the Crystal Clear Collaboration (CCC) to develop a 2nd generation high performance small animal positron emission tomograph (PET). High sensitivity and high spatial resolution is foreseen for the ClearPET™ camera by using a phoswich arrangement combining mixed lutetium yttrium aluminum perovskite (LuYAP:Ce) and lutetium oxyorthosilicate (LSO) scintillating crystals. Design optimizations for the first photomultiplier tube (PMT) based ClearPET camera are done with a Monte-Carlo simulation package implemented on GEANT3 (CERN, Geneva, Switzerland). A dual-head prototype has been built to test the frontend electronics and was used to validate the implementation of the GEANT3 simulation tool. Multiple simulations were performed following the experimental protocols to measure the intrinsic resolution and the sensitivity profile in axial and radial direction. Including a mean energy resolution of about 27.0% the simulated intrinsic resolution is about (1.41±0.11)mm compared to the measured of (1.48±0.06)mm. The simulated sensitivity profiles show a mean square deviation of 12.6% in axial direction and 3.6% in radial direction. Satisfactorily these results are representative for all designs and confirm the scanner geometry.
Y1  - 2004
SN  - 1082-3654
SP  - 3053
EP  - 3056
ER  - 
TY  - JOUR
A1  - Auffray, E.
A1  - Bruyndonckx, P.
A1  - Devroede, O.
A1  - Fedorov, A.
A1  - Ziemons, Karl
T1  - The ClearPET project
JF  - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
N2  - The Crystal Clear Collaboration has designed and is building a high-resolution small animal PET scanner. The design is based on the use of the Hamamatsu R7600-M64 multi-anode photomultiplier tube and a LSO/LuYAP phoswich matrix with one to one coupling between the crystals and the photo-detector. The complete system will have 80 PM tubes in four rings with an inner diameter of 137 mm and an axial field of view of 110 mm. The PM pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the pulse arrival time. Single gamma interactions are recorded and coincidences are found by software. The gantry allows rotation of the detector modules around the field of view. Simulations, and measurements a 2×4 module test set-up predict a spatial resolution of 1.5 mm in the centre of the field of view and a sensitivity of 5.9% for a point source in the centre of the field of view.
Y1  - 2004
SN  - 0168-9002
N1  - Proceedings of the 2nd International Conference on Imaging Technologies in Biomedical Sciences
VL  - 527
IS  - 1-2
SP  - 171
EP  - 174
ER  - 
TY  - JOUR
A1  - Hagebeuker, Bianca
A1  - Lange, Robert
A1  - Ringbeck, Thorsten
T1  - Bildverarbeitung mit der dritten Dimension : wenn die Pixel auch Laufzeiten auswerten
JF  - Sensor-Report : Sensorik, Messtechnik, Bildverarbeitung, Fabrikautomation. - 2004, H. 2
Y1  - 2004
SN  - 0179-9592
SP  - 11
EP  - 17
PB  - Rek & Thomas
CY  - St. Gallen
ER  - 
TY  - BOOK
A1  - Dören, Horst-Peter
T1  - Fügetechnik, Schweißtechnik / Horst-Peter Dören (Hrsg.).- 6. Aufl.
Y1  - 2013
SN  - 3-87155-786-2
PB  - DVS Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Müller, Karsten
T1  - Selektive Inspektion von Kanalisationen
JF  - KA Abwasser Abfall. Bd 51 (2004), H. 8
Y1  - 2004
SN  - 1616-430X
N1  - Artikel bei angegebenem Link unter Jg. 2004, H. 8, Entwässerungssysteme
SP  - 831
EP  - 836
ER  - 
TY  - JOUR
A1  - Müller, Karsten
T1  - Weg von der Feuerwehrstrategie
JF  - Der Gemeinderat. Bd. 47 (2004), H. 8
Y1  - 2004
N1  - ISSN 0723-8274
SP  - 22
EP  - 23
ER  - 
TY  - CHAP
A1  - Müller, Karsten
T1  - Strategien der Zustandserfassung von Abwasserkanälen
T2  - Entwicklungen in der Kanalisationstechnik : schriftliche Fassungen der Vorträge zur 5. Tagung "Entwicklungen in der Kanalisationstechnik" : am 22. und 23. Juni 2004 in Köln / MUNLV, Ministerium für Umwelt und Naturschutz, Landwirtschaft und Verbraucherschutz des Landes Nordrhein-Westfalen, Düsseldorf ... Tagungsleitung: Max Dohmann ... Aachener Schriften zur Stadtentwaesserung ASS. Bd. 5
Y1  - 2004
SP  - 1
EP  - 16
PB  - Institut für Siedlungswasserwirtschaft der RWTH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Faber, Christian
T1  - Solare Meerwasser-Entsalzungsanlage mit mehrstufiger Wärmerückgewinnung
T2  - 14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management
Y1  - 2004
SN  - 3-934681-33-6
SP  - 154
EP  - 161
PB  - OTTI-Energie-Kolleg
CY  - Regensburg
ER  - 
TY  - CHAP
A1  - Faber, Christian
T1  - Einfache Systeme zur solaren Deckung des Wärmebedarfs zur Raumheizung, Brauchwassererwärmung und Essenszubereitung in Hochgebirgsregionen
T2  - 14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management
Y1  - 2004
SN  - 3-934681-33-6
SP  - 264
EP  - 271
PB  - OTTI-Energie-Kolleg
CY  - Regensburg
ER  - 
TY  - CHAP
A1  - Hartz, Thomas
T1  - Solare Brauchwasserversorgung in Siedlungen - zentral oder dezentral?
T2  - 14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management
Y1  - 2004
SN  - 3-934681-33-6
SP  - 331
EP  - 336
PB  - OTTI-Energie-Kolleg
CY  - Regensburg
ER  - 
TY  - CHAP
A1  - Hartz, Thomas
T1  - LACASA - ein Instrument zur energetischen Analyse und Optimierung von Gebäuden mit Anlagentechnik
T2  - 14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management
Y1  - 2004
SP  - 402
EP  - 406
PB  - OTTI-Energie-Kolleg
CY  - Regensburg
ER  - 
TY  - CHAP
A1  - Faber, Christian
T1  - Solare Großbäckerei in Burkina Faso als Beispiel eines solaren Prozesswärmesystems
T2  - 14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management
Y1  - 2004
SN  - 3-934681-33-6
SP  - 500
EP  - 505
PB  - OTTI-Energie-Kolleg
CY  - Regensburg
ER  - 
TY  - CHAP
A1  - Dilthey, Ulrich
A1  - Mund, F.
A1  - Raupach, Michael
A1  - Schleser, Markus
A1  - Walk-Lauffer, Bernd
T1  - Improvement of textile reinforced concrete by polymer additives
T2  - ICPIC '04 : 11th International Congress on Polymers in Concrete : 2nd-4th June, 2004 at BAM, Berlin, Germany : proceedings / ed. by M. Maultzsch
Y1  - 2004
SN  - 3-00-013706-8
SP  - 469
EP  - 476
PB  - BAM
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Dilthey, Ulrich
A1  - Brandenburg, Annette
A1  - Schleser, Markus
T1  - Dispensing and application of unfilled adhesives in the micro range
JF  - Welding and cutting. 3 (2004), H. 4
Y1  - 2004
SN  - 1612-3433
SP  - 250
EP  - 254
ER  - 
TY  - JOUR
A1  - Sedlacek, G.
A1  - Schätzke, C.
A1  - Geßler, M.
A1  - Schleser, Markus
T1  - Fügen von Bauteilen aus textilbewehrtem Beton
JF  - Der Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik.  Bd. 79 (2004), H. 12
Y1  - 2004
SN  - 0005-6650
N1  - Printausg. in der Bibliothek der FH Aachen vorhanden: 13 Z 049-2004
SP  - 569
EP  - 575
ER  - 
TY  - CHAP
A1  - Walk-Lauffer, Bernd
A1  - Raupach, Michael
A1  - Dilger, Klaus
A1  - Böhm, Stefan
A1  - Mundt, F.
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
T1  - The interconnection between inner filaments of textile reinforcement by means of polymer modified concrete
T2  - Proceedings of the First International Conference on Innovative Materials and Technologies for Construction and Restoration : : Lecce, June 6 - 9, 2004 / Università degli Studi di Lecce / ed. Antonio La Tegola. Vol. 1: Key-notes, materials, construction
Y1  - 2004
SP  - 150
EP  - 159
PB  - Liguori
CY  - Napoli
ER  - 
TY  - JOUR
A1  - Hellwig, Angelika
A1  - Volkmann, Lutz
T1  - Maximally local-edge-connected graphs and digraphs
JF  - Ars combinatoria
Y1  - 2004
SN  - 0381-7032
VL  - Vol. 72
SP  - 295
EP  - 306
ER  - 
TY  - JOUR
A1  - Hellwig, Angelika
A1  - Volkmann, Lutz
T1  - Neighborhood and degree conditions for super-edge-connected bipartite digraphs
JF  - Results in mathematics
Y1  - 2004
SN  - 1420-9012 (E-Journal); 1422-6383 (Print)
VL  - Vol. 45
IS  - Iss. 1-2
SP  - 45
EP  - 58
ER  - 
TY  - JOUR
A1  - Hellwig, Angelika
A1  - Volkmann, Lutz
T1  - Sufficient conditions for λ′-optimality in graphs of diameter 2
JF  - Discrete mathematics
Y1  - 2004
SN  - 1872-681X (E-Journal); 0012-365X (Print)
VL  - Vol. 283
IS  - Iss. 1-3
SP  - 113
EP  - 120
ER  - 
TY  - BOOK
A1  - Sedlacek, Gerhard
A1  - Ziller, Claudia
A1  - Weynand, Klaus
A1  - Stark, Sebastian
A1  - Thiel, Dieter
A1  - Lemke, H.-J.
A1  - Döring, Bernd
A1  - Lenzen, Kersten
T1  - Integration von Tragwerk und Haustechnik in Büro- und Produktionsgebäuden aus Stahl für eine flexible Nutzung : Forschungsvorhaben. (Forschung für die Praxis : Projekt ; P 447)
Y1  - 2004
SN  - 9783937567051
PB  - Forschungsvereinigung Stahlanwendung e.V. -FOSTA-
CY  - Düsseldorf
ER  -