The BGO Calorimeter of BGO-OD Experiment

The BGO Rugby Ball is a large solid angle electromagnetic calorimeter now installed in the ELSA Facility in Bonn. The BGO is operating in the BGO-OD experiment aiming to study meson photoproduction off proton and neutron induced by a Bremsstrahlung polarized gamma beam of energies from 0.2 to 3.2 Ge...

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Bibliographic Details
Published in:Journal of physics. Conference series 2015-01, Vol.587 (1), p.12042-12
Main Authors: Bantes, B, Bayadilov, D, Beck, R, Becker, M, Bella, A, Bielefeldt, P, Bieling, J, Bleckwenn, M, Böse, S, Braghieri, A, Brinkmann, K-Th, Burdeynyi, D, Curciarello, F, Leo, V De, Salvo, R Di, Dutz, H, Elsner, D, Fantini, A, Freyermuth, O, Friedrich, S, Frommberger, F, Ganenko, V, Geffers, D, Gervino, G, Ghio, F, Giardina, G, Girolami, B, Glazier, D, Goertz, S, Gridnev, A, Gutz, E, Hammann, D, Hannappel, J, Hartmann, P-F, Hillert, W, Ignatov, A, Jahn, R, Joosten, R, Jude, T C, Klein, F, Koop, K, Krusche, B, Lapik, A, Sandri, P Levi, Lopatin, I, Mandaglio, G, Mei, P, Messi, F, Messi, R, Metag, V, Moricciani, D, Nanova, M, Nedorezov, V, Novinskiy, D, Pedroni, P, Romaniuk, M, Rostomyan, T, Rudnev, N, Schaerf, C, Scheluchin, G, Schmieden, H, Sumachev, V, Tarakanov, V, Vegna, V, Walther, D, Watts, D, Zaunick, H-G, Zimmermann, T
Format: Article
Language:English
Subjects:
BGO (crystal)
Bremsstrahlung
Detectors
Electronics
Energy resolution
Linearity
Multiplier phototubes
Photomultiplier tubes
Photomultipliers
Photons
Photoproduction
Physics
Read out systems
Sampling
Test facilities
Time response
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Summary:The BGO Rugby Ball is a large solid angle electromagnetic calorimeter now installed in the ELSA Facility in Bonn. The BGO is operating in the BGO-OD experiment aiming to study meson photoproduction off proton and neutron induced by a Bremsstrahlung polarized gamma beam of energies from 0.2 to 3.2 GeV and an intensity of 5 × 107 photons per second. The scintillating material characteristics and the photomultiplier read-out make this detector particularly suited for the detection of medium energy photons and electrons with very good energy resolution. The detector has been equipped with a new electronics read-out system, consisting of 30 sampling ADC Wie-Ne-R modules which perform the off-line reconstruction of the signal start-time allowing for a good timing resolution. Performances in linearity, resolution and time response have been carefully tested at the Beam Test Facility of the INFN National Laboratories in Frascati by using a matrix of 7 BGO crystals coupled to photomultipliers and equipped with the Wie-Ne-R sampling ADCs.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/587/1/012042