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The following article is Open access
Dose rate effects in the radiation damage of the plastic scintillators of the CMS hadron endcap calorimeter
V. Khachatryan1, A.M. Sirunyan1, A. Tumasyan1, A. Litomin2, V. Mossolov2, N. Shumeiko2, M. Van De Klundert3, H. Van Haevermaet3, P. Van Mechelen3, A. Van Spilbeeck3, G.A. Alves4, W.L. Aldá Júnior4, C. Hensel4, W. Carvalho5, J. Chinellato5, C. De Oliveira Martins5, D. Matos Figueiredo5, C. Mora Herrera5, H. Nogima5, W.L. Prado Da Silva5, E.J. Tonelli Manganote5, A. Vilela Pereira5, M. Finger6, M. Finger Jr.6, S. Jain6, R. Khurana6, G. Adamov7, Z. Tsamalaidze7, U. Behrens8, K. Borras8, A. Campbell8, F. Costanza8, P. Gunnellini8, A. Lobanov8, I.-A. Melzer-Pellmann8, C. Muhl8, B. Roland8, M. Sahin8, P. Saxena8, V. Hegde9, K. Kothekar9, S. Pandey9, S. Sharma9, S.B. Beri10, B. Bhawandeep10, R. Chawla10, A. Kalsi10, A. Kaur10, M. Kaur10, G. Walia10, S. Bhattacharya11, S. Ghosh11, S. Nandan11, A. Purohit11, M. Sharan11, S. Banerjee12, S. Bhattacharya12, S. Bhowmik12, S. Chatterjee12, P. Das12, R.K. Dewanjee12, S. Jain12, S. Kumar12, M. Maity12, G. Majumder12, P. Mandakini12, M. Patil12, T. Sarkar12, A. Saikh12, S. Sezen13, A. Juodagalvis14, S. Afanasiev15, P. Bunin15, Y. Ershov15, I. Golutvin15, A. Malakhov15, P. Moisenz15, V. Smirnov15, A. Zarubin15, M. Chadeeva16, R. Chistov16, M. Danilov16, E. Popova16, V. Rusinov16, Yu. Andreev17, A. Dermenev17, A. Karneyeu17, N. Krasnikov17, D. Tlisov17, A. Toropin17, V. Epshteyn18, V. Gavrilov18, N. Lychkovskaya18, V. Popov18, I. Pozdnyakov18, G. Safronov18, M. Toms18, A. Zhokin18, H. Flacher19, A. Baskakov20, A. Belyaev20, E. Boos20, M. Dubinin20, L. Dudko20, A. Ershov20, A. Gribushin20, A. Kaminskiy20, V. Klyukhin20, O. Kodolova20, I. Lokhtin20, I. Miagkov20, S. Obraztsov20, S. Petrushanko20, V. Savrin20, A. Snigirev20, V. Andreev21, M. Azarkin21, I. Dremin21, M. Kirakosyan21, A. Leonidov21, A. Terkulov21, S. Bitioukov22, D. Elumakhov22, A. Kalinin22, V. Krychkine22, P. Mandrik22, V. Petrov22, R. Ryutin22, A. Sobol22, S. Troshin22, A. Volkov22, A. Adiguzel23, N. Bakirci23, S. Cerci23, S. Damarseckin23, Z.S. Demiroglu23, C. Dozen23, I. Dumanoglu23, E. Eskut23, S. Girgis23, G. Gokbulut23, Y. Guler23, I. Hos23, E.E. Kangal23, O. Kara23, A. Kayis Topaksu23, U. Kiminsu23, M. Oglakci23, G. Onengut23, K. Ozdemir23, S. Ozturk23, A. Polatoz23, D. Sunar Cerci23, B. Tali23, H. Topakli23, S. Turkcapar23, I.S. Zorbakir23, C. Zorbilmez23, B. Bilin24, B. Isildak24, G. Karapinar24, A. Murat Guler24, K. Ocalan24, M. Yalvac24, M. Zeyrek24, E. Gülmez25, M. Kaya25, O. Kaya25, E.A. Yetkin25, T. Yetkin25, K. Cankocak26, S. Sen26, A. Boyarintsev27, B. Grynyov27, L. Levchuk28, V. Popov28, P. Sorokin28, A. Borzou29, K. Call29, J. Dittmann29, K. Hatakeyama29, H. Liu29, N. Pastika29, O. Charaf30, S.I. Cooper30, C. Henderson30, P. Rumerio30, C. West30, D. Arcaro31, D. Gastler31, E. Hazen31, J. Rohlf31, L. Sulak31, S. Wu31, D. Zou31, J. Hakala32, U. Heintz32, K.H.M. Kwok32, E. Laird32, G. Landsberg32, Z. Mao32, J.W. Gary33, S.M. Ghiasi Shirazi33, F. Lacroix33, O.R. Long33, H. Wei33, R. Bhandari34, R. Heller34, D. Stuart34, J.H. Yoo34, A. Apresyan35, Y. Chen35, J. Duarte35, M. Spiropulu35, D. Winn36, S. Abdullin37, S. Banerjee37, F. Chlebana37, J. Freeman37, D. Green37, D. Hare37, J. Hirschauer37, U. Joshi37, D. Lincoln37, S. Los37, K. Pedro37, W.J. Spalding37, N. Strobbe37, S. Tkaczyk37, A. Whitbeck37, S. Linn38, P. Markowitz38, G. Martinez38, M. Bertoldi39, S. Hagopian39, V. Hagopian39, T. Kolberg39, M.M. Baarmand40, D. Noonan40, T. Roy40, F. Yumiceva40, B. Bilki41, W. Clarida41, P. Debbins41, K. Dilsiz41, S. Durgut41, R.P. Gandrajula41, M. Haytmyradov41, V. Khristenko41, J.-P. Merlo41, H. Mermerkaya41, A. Mestvirishvili41, M. Miller41, A. Moeller41, J. Nachtman41, H. Ogul41, Y. Onel41, F. Ozok41, A. Penzo41, I. Schmidt41, C. Snyder41, D. Southwick41, E. Tiras41, K. Yi41, A. Al-bataineh42, J. Bowen42, J. Castle42, W. McBrayer42, M. Murray42, Q. Wang42, K. Kaadze43, Y. Maravin43, A. Mohammadi43, L.K. Saini43, A. Baden44, A. Belloni44, S.C. Eno44, C. Ferraioli44, T. Grassi44, N.J. Hadley44, G.-Y. Jeng44, R.G. Kellogg44, J. Kunkle44, A. Mignerey44, F. Ricci-Tam44, Y.H. Shin44, A. Skuja44, M.B. Tonjes44, Z.S. Yang44, A. Apyan45, K. Bierwagen45, S. Brandt45, M. Klute43, X. Niu45, R.M. Chatterjee46, A. Evans46, E. Frahm46, Y. Kubota46, Z. Lesko46, J. Mans46, N. Ruckstuhl46, A. Heering47, D.J. Karmgard47, Y. Musienko47, R. Ruchti47, M. Wayne47, A.D. Benaglia48, T. Medvedeva48, K. Mei48, C. Tully48, A. Bodek49, P. de Barbaro49, M. Galanti49, A. Garcia-Bellido49, A. Khukhunaishvili49, K.H. Lo49, D. Vishnevskiy49, M. Zielinski49, A. Agapitos50, J.P. Chou50, E. Hughes50, H. Saka50, D. Sheffield50, N. Akchurin51, J. Damgov51, F. De Guio51, P.R. Dudero51, J. Faulkner51, E. Gurpinar51, S. Kunori51, K. Lamichhane51, S.W. Lee51, T. Libeiro51, S. Undleeb51, I. Volobouev51, Z. Wang51, S. Goadhouse52, R. Hirosky52, Y. Wang52 and on behalf of CMS-HCAL collaboration
We present measurements of the reduction of light output by plastic scintillators irradiated in the CMS detector during the 8 TeV run of the Large Hadron Collider and show that they indicate a strong dose rate effect. The damage for a given dose is larger for lower dose rate exposures. The results agree with previous measurements of dose rate effects, but are stronger due to the very low dose rates probed. We show that the scaling with dose rate is consistent with that expected from diffusion effects.
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