Gevorgyan, A.Petrosyan, A.Tumasyan, A.Van de Klundert, M.Van Haevermaet, H.Van Mechelen, P.Zhokin, A.2025-06-112025-06-1120251748-0221https://doi.org/10.1088/1748-0221/20/01/P01026https://hdl.handle.net/20.500.13091/10088Pasztor, Gabriella/0000-0003-0707-9762; Klyukhin, Vyacheslav/0000-0002-8577-6531; Madrid, Christopher/0000-0003-3301-2246; Papageorgakis, Christos/0000-0003-4548-0346; Vilela Pereira, Antonio/0000-0003-3177-4626; Bodek, Arie/0000-0003-0409-0341; Belyaev, Andrey/0000-0003-1692-1173; Lokos, Sandor/0000-0002-4447-4836; Tiras, Emrah/0000-0002-5628-7464; Mora Herrera, Maria Clemencia/0000-0003-3915-3170; Tok, Ufuk Guney/0000-0002-3039-021X; Hatakeyama, Kenichi/0000-0002-6012-2451; Saygin, Kadir/0000-0002-8419-1400; Dubinin, Mikhail/0000-0002-7766-7175; Flaecher, Henning/0000-0002-5371-941X; Dolek, Furkan/0000-0001-7092-5517; Sen, Sercan/0000-0001-7325-1087; Belloni, Alberto/0000-0002-1727-656X; Kiminsu, Ugur/0000-0001-6940-7800; Levchuk, Leonid/0000-0001-5889-7410; Demiroglu, Zuhal Seyma/0000-0001-7977-7127; Gandrajula, Reddy Pratap/0000-0001-9053-3182; Seidel, Markus/0000-0003-3550-6151; Csanad, Mate/0000-0002-3154-6925; Kaur, Amandeep/0000-0002-1640-9180; Zorbakir, Ibrahim Soner/0000-0002-5962-2221; Kolberg, Ted/0000-0002-0211-6109; Alves, Gilvan/0000-0002-8369-1446; Kanuganti, Ankush Reddy/0000-0002-0789-1200; Lawhorn, Jay/0000-0002-8597-9259; Lee, Sung-Won/0000-0002-3388-8339; Polikarpov, Sergey/0000-0001-6839-928X; Tully, Christopher/0000-0001-6771-2174; Landsberg, Greg/0000-0002-4184-9380; Lai, Yihui/0000-0002-7795-8693A 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.eninfo:eu-repo/semantics/openAccessCalorimetersInteraction Of Radiation With MatterScintillators, Scintillation And Light Emission Processes (Solid, Gas And Liquid Scintillators)Calorimeter MethodsArticle10.1088/1748-0221/20/01/P01026