Title of article
Correlation of beam electron and LED signal losses under irradiation and long-term recovery of lead tungstate crystals
Author/Authors
Batarin، نويسنده , , V.A and Butler، نويسنده , , J. and Davidenko، نويسنده , , A.M. and Derevschikov، نويسنده , , A.A. and Goncharenko، نويسنده , , Y.M and Grishin، نويسنده , , V.N and Kachanov، نويسنده , , V.A and Konstantinov، نويسنده , , A.S. and Kravtsov، نويسنده , , V.I and Kubota، نويسنده , , Y. and Lukanin، نويسنده , , V.S. and Matulenko، نويسنده , , Y.A. and Melnick، نويسنده , , Y.M. and Meschanin، نويسنده , , A.P. and Mikhalin، نويسنده , , N.E. and Minaev، نويسنده , , N.G. and Mochalov، نويسنده , , V.V. and Morozov، نويسنده , , D.A. and Nogach، نويسنده , , L.V. and Ryazantsev، نويسنده , , A.V. and Semenov، نويسنده , , P.A. and Semenov، نويسنده , , V.K. and Shestermanov، نويسنده , , K.E. and Soloviev، نويسنده , , L.F. and Stone، نويسنده , , S. and Uzunian، نويسنده , , A.V. and Vasiliev، نويسنده , , A.N. and Yakutin، نويسنده , , A.E. and Yarba، نويسنده , , J.، نويسنده ,
Pages
8
From page
543
To page
550
Abstract
Radiation damage in lead tungstate crystals reduces their transparency. The calibration that relates the amount of light detected in such crystals to incident energy of photons or electrons is of paramount importance to maintaining the energy resolution the detection system. We report on tests of lead tungstate crystals, read out by photomultiplier tubes, exposed to irradiation by monoenergetic electron or pion beams. The beam electrons themselves were used to measure the scintillation light output, and a blue light emitting diode (LED) was used to track variations of crystals transparency. We report on the correlation of the LED measurement with radiation damage by the beams and also show that it can accurately monitor the crystal recovery from such damage.
Keywords
Lead tungstate , Energy calibration , Scintillating crystal
Journal title
Astroparticle Physics
Record number
2027220
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