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16 July 2020
  » arxiv » physics/0410133

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Study of Possible Scintillation Mechanism Damage in PbWO4 Crystals After Pion Irradiation
V.A.Batarin ; J.Butler ; T.Y.Chen ; A.M.Davidenko ; A.A.Derevschikov ; Y.M.Goncharenko ; V.N.Grishin ; V.A.Kachanov ; A.S.Konstantinov ; V.I.Kravtsov ; V.A.Kormilitsin ; Y.Kubota ; V.S.Lukanin ; Y.A.Matulenko ; Y.M.Melnick ; A.P.Meschanin ; N.E.Mikhalin ; N.G.Minaev ; V.V.Mochalov ; D.A.Morozov ; L.V.Nogach ; A.V.Ryazantsev ; P.A.Semenov ; V.K.Semenov ; K.E.Shestermanov ; L.F.Soloviev ; S.Stone ; A.V.Uzunian ; A.N.Vasiliev ; A.E.Yakutin ; J.Yarba ;
Date 19 Oct 2004
Journal Nucl.Instrum.Meth. A540 (2005) 131-139
Subject Instrumentation and Detectors | physics.ins-det hep-ex
AbstractWe employed two independent methods to study possible damage to the scintillation mechanism in lead tungstate crystals due to irradiation by a 34 GeV pion beam. First, 10 crystals were irradiated simultaneously over 30 hours by a narrow beam, so that only a small region of each crystal was affected. We studied the effect of the irradiation on the light output non-uniformity. If a localized degradation was observed, it would indicate damage to the scintillation mechanism. Secondly, we detected light output using two phototubes attached to sides of a crystal. Since these phototubes detect scintillation light only from a small localized region, the effect of transmission loss should be minimal. We did not see any statistically significant evidence for scintillation mechanism damage with either method. The effect is consistent with zero, and the upper limit is 0.5% at 95% C.L.
Source arXiv, physics/0410133
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