Browsing by Author "Gevorgyan, A."

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • Thumbnail Image
    Article
    The Effect of Radiation Damage on the Light Yield and Uniformity of Candidate Plastic Scintillator Tiles for the Cms Hadron Calorimeter Upgrade
    (Iop Publishing Ltd, 2025) Gevorgyan, A.; Petrosyan, A.; Tumasyan, A.; Van de Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Zhokin, A.
    A study has been performed to understand the effects of radiation damage on various plastic scintillator tiles considered for a possible upgrade of the hadron calorimeter of the CMS detector. Measurements were made with unirradiated tiles and with tiles that had been irradiated in the CMS collision hall to a dose of 44 kGy. Results are presented for the tiles of different shapes in terms of the energy spectrum, efficiency as a function of the position at which each tile was hit, as well as light yield. All the tiles showed a light reduction of up to about 50%. The tiles with the shape currently used in the CMS detector did not see increased non-uniformity of light collection, while a significant disuniformity was observed for the tiles considered as alternatives.