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Beam test evaluation of electromagnetic calorimeter modules made from proton-damaged PbWO4crystals
Author(s) -
T. Adams,
P. Adzic,
S. Ahuja,
D. Anderson,
M. B. Andrews,
I. Antropov,
Ž. Antunović,
R. Arcidiacono,
W. To,
S. Argirò,
A. Askew,
A. Attikis,
E. Auffray,
S. Baccaro,
S. Baffioni,
D. Bailleux,
P. Baillon,
D. Barney,
L. Barone,
A. Bartoloni,
N. Bartosik,
E. Becheva,
S. Bein,
C. Beirão Da Cruz E Silva,
K. W. Bell,
A. Benaglia,
J. Bendavid,
D. Berry,
M. Besançon,
B.L. Betev,
W. Białas,
L. Bianchini,
C. Biino,
S. Bitioukov,
A. Bornheim,
L. Brianza,
A. Brinkerhoff,
R. M. Brown,
A. Brummitt,
P. Busson,
V. Candelise,
C. A. Carrillo Montoya,
N. Cartiglia,
F. Cavallari,
Y. W. Chang,
K. F. Chen,
G. Chevenier,
R. Chipaux,
E. Clement,
D. J. A. Cockerill,
L. Corpe,
F. Couderc,
Benoit Courbon,
B. Cox,
G. Cucciati,
D. Cussans,
G. D’imperio,
D. R. Da Silva Di Calafiori,
I. Dafinei,
J. Daguin,
G. Daskalakis,
Andre David Tinoco Mendes,
F. De Guio,
A. Degano,
M. Déjardin,
D. Del Re,
G. Della Ricca,
D. Denegri,
P. Depasse,
N. Dev,
D. Deyrail,
E. Di Marco,
B. Diamond,
M. Diemoz,
G. Dissertori,
M. Dittmar,
L. Djambazov,
T. H. Doan,
L. Dobrzyński,
A. Dolgopolov,
M. Donegà,
M. Dordevic,
M. Dröge,
T. Durkin,
D. Dutta,
H. El Mamouni,
A. Elliott-Peisert,
E. Elmalis,
B. Fabbro,
G. Fasanella,
JeanEmmanuel Faure,
J. Fay,
A. Fedorov,
F. Ferri,
B. Francis,
N. Frank,
G. Franzoni,
W. Funk,
S. Ganjour,
S. Gascon,
M. Gastal,
Y. Geerebaert,
S. Gelli,
R. Gerosa,
A. Ghezzi,
V. Giakoumopoulou,
A. Givernaud,
S. Gninenko,
N. Godinović,
N. Goeckner-Wald,
N. Golubev,
P. Govoni,
P. Gras,
F. Guilloux,
C. Haller,
G. Hamel de Monchenault,
M. Hansen,
P. Hansen,
J. Hardenbrook,
H. F. Heath,
John Hill,
R. Hirosky,
P. R. Hobson,
O. Holme,
A. Honma,
W.-S. Hou,
Y. Hsiung,
Y. Iiyama,
B. Ille,
Q. Ingram,
Sa. Jain,
P. Jarry,
C. Jessop,
D. Jovanovic,
В. Качанов,
S. Kalafut,
K. Y. Kao,
N. Kellams,
S. Kesisoglou,
A. Khatiwada,
A. Konoplyannikov,
D. Konstantinov,
M. Korzhik,
M. Kovac,
Y. Kubota,
I. Kucher,
Arun Kumar,
A. Kumar,
C. Kuo,
P. Kyberd,
A. Kyriakis,
G. Latyshev,
P. Lecoq,
A. Ledovskoy,
Y. J. Lei,
D. Lelas,
M. Lethuillier,
H. Li,
W. Lin,
Y.F. Liu,
E. Locci,
E. Longo,
D. Loukas,
R.-S. Lu,
M. T. Lucchini,
W. Lustermann,
C. K. Mackay,
F. Magniette,
J. Malclès,
S. Malhotra,
I. Mandjavidze,
Y. Maravin,
F. Margaroli,
N. Marinelli,
A.C. Marini,
A. Martelli,
B. Marzocchi,
A. Massironi,
V. Matveev,
V. Mechinsky,
F. Meng,
P. Meridiani,
F. Micheli,
J. Milošević,
J. Mousa,
P. Musella,
F. Nessi-Tedaldi,
C. Neu,
H. B. Newman,
C. Nicolaou,
S. Nourbakhsh,
M. M. Obertino,
G. Organtini,
T. Orimoto,
P. Paganini,
E. Paganis,
M. Pagai,
F. Pandolfi,
V. Panov,
R. Paramatti,
P. Parracho,
N. Pastrone,
M. Paulini,
F. Pauss,
K. Pauwels,
F. Pellegrino,
C. Pena,
L. Perniè,
M. Peruzzi,
E. Petrakou,
D. Petyt,
S. Pigazzini,
P. Piroué,
M. Planer,
R. Plestina,
D. Polic,
H. Prosper,
F. Ptochos,
I. Puljak,
M. Quittnat,
S. Ragazzi,
S. Rahatlou,
J. Rander,
K. Ranjan,
J. Rasteiro Da Silva,
P. A. Razis,
T. Romanteau,
A. Rosowsky,
C. Rovelli,
R. Rusack,
R. Salerno,
F. Santanastasio,
A. Santra,
M. Schönenberger,
C. Seez,
V. Sharma,
C. H. Shepherd-Themistocleous,
J.G. Shiu,
R. K. Shivpuri,
A. Singovsky,
T. Sinthuprasith,
Y. Sirois,
N. Smiljkovic,
L. Soffi,
M. Sun,
P. Symonds,
T. Tabarelli de Fatis,
N. Tambe,
I. Tarasov,
S. Taroni,
R. Teixeira De Lima,
A. Thea,
K. Theofilatos,
F. Thiant,
M. Titov,
M. Torbet,
P.P. Trapani,
P. Tropea,
J.f. Tsai,
A. Tsirou,
J. Turkewitz,
N. Tyurin,
Y.M. Tzeng,
A. Uzunian,
N. Valls,
J. Varela,
V. Veeraraghavan,
P. Dini,
P. Vichoudis,
E. Vlassov,
J. Wang,
T. Wang,
M. Weinberg,
E. Wolfe,
J. Wood,
A. Zabi,
S. Zahid,
S. Zelepoukine,
A. Zghiche,
L. Zhang,
K. Zhu,
R. Y. Zhu,
R. Zuyeuski
Publication year - 2016
Publication title -
journal of instrumentation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.741
H-Index - 84
ISSN - 1748-0221
DOI - 10.1088/1748-0221/11/04/p04012
Subject(s) - pseudorapidity , physics , proton , irradiation , fluence , large hadron collider , scintillation , luminosity , nuclear physics , beam (structure) , hadron , optics , calorimeter (particle physics) , charged particle , detector , galaxy , ion , quantum mechanics
see paper for full list of authorsInternational audienceThe performance of electromagnetic calorimeter modules made of proton-irradiated PbWO4 crystals has been studied in beam tests. The modules, similar to those used in the Endcaps of the CMS electromagnetic calorimeter (ECAL), were formed from 5×5 matrices of PbWO4 crystals, which had previously been exposed to 24 GeV protons up to integrated fluences between 2.1× 1013 and 1.3× 1014 cm−2. These correspond to the predicted charged-hadron fluences in the ECAL Endcaps at pseudorapidity η = 2.6 after about 500 fb−1 and 3000 fb−1 respectively, corresponding to the end of the LHC and High Luminosity LHC operation periods. The irradiated crystals have a lower light transmission for wavelengths corresponding to the scintillation light, and a correspondingly reduced light output. A comparison with four crystals irradiated in situ in CMS showed no significant rate dependence of hadron-induced damage. A degradation of the energy resolution and a non-linear response to electron showers are observed in damaged crystals. Direct measurements of the light output from the crystals show the amplitude decreasing and pulse becoming faster as the fluence increases. The latter is interpreted, through comparison with simulation, as a side-effect of the degradation in light transmission. The experimental results obtained can be used to estimate the long term performance of the CMS ECAL

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