1. Muon counting using silicon photomultipliers in the AMIGA detector of the Pierre Auger observatory
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Aab, A, Abreu, P, Aglietta, M, Ahn, Ej, Al Samarai, I, Albuquerque, Ifm, Allekotte, I, Allison, P, Almela, A, Castillo, Ja, Alvarez Muniz, J, Batista, Ra, Ambrosio, M, Anchordoqui, L, Andrada, B, Andringa, S, Aramo, C, Arqueros, F, Arsene, N, Asorey, H, Assis, P, Aublin, J, Avila, G, Awal, N, Badescu, Am, Baus, C, Beatty, Jj, Becker, Kh, Bellido, Ja, Berat, C, Bertaina, Me, Bertou, X, Biermann, Pl, Billoir, P, Blaess, Sg, Blanco, A, Blazek, J, Bleve, C, Blumer, H, Bohacova, M, Boncioli, D, Bonifazi, C, Borodai, N, Botti, Am, Brack, J, Brancus, I, Bretz, T, Bridgeman, A, Briechle, Fl, Buchholz, P, Bueno, A, Buitink, S, Buscemi, M, Caballero Mora KS, Caccianiga, B, Caccianiga, L, Cancio, A, Candusso, M, Caramete, L, Caruso, Rossella, Castellina, A, Cataldi, G, Cazon, L, Cester, R, Chavez, Ag, Chiavassa, A, Chinellato, Ja, Diaz, Jcc, Chudoba, J, Clay, Rw, Colalillo, R, Coleman, A, Collica, L, Coluccia, Mr, Conceicao, R, Contreras, F, Cooper, Mj, Coutu, S, Covault, Ce, Cronin, J, Dallier, R, D'Amico, S, Daniel, B, Dasso, S, Daumiller, K, Dawson, Br, de Almeida RM, de Jong SJ, De Mauro, G, Neto, Jrtd, De Mitri, I, de Oliveira, J, de Souza, V, Debatin, J, Deligny, O, Dhital, N, Di Giulio, C, Di Matteo, A, Castro, Mld, Diogo, F, Dobrigkeit, C, Docters, W, D'Olivo, Jc, Dorofeev, A, Dos Anjos RC, Dova, Mt, Dundovic, A, Ebr, J, Engel, R, Erdmann, M, Erfani, M, Escobar, Co, Espadanal, J, Etchegoyen, A, Falcke, H, Fang, K, Farrar, G, Fauth, Ac, Fazzini, N, Ferguson, Ap, Fick, B, Figueira, Jm, Filevich, A, Filipcic, A, Fratu, O, Freire, Mm, Fujii, T, Fuster, A, Gallo, F, Garcia, B, Garcia Pinto, D, Gate, F, Gemmeke, H, Gherghel Lascu, A, Ghia, Pl, Giaccari, U, Giammarchi, M, Giller, M, Glas, D, Glaser, C, Glass, H, Golup, G, Berisso, Mg, Vitale, Pfg, Gonzalez, N, Gookin, B, Gordon, J, Gorgi, A, Gorham, P, Gouffon, P, Griffith, N, Grillo, Af, Grubb, Td, Guarino, F, Guedes, Gp, Hampel, Mr, Hansen, P, Harari, D, Harrison, Ta, Harton, Jl, Hasankiadeh, Q, Haungs, A, Hebbeker, T, Heck, D, Heimann, P, Herve, Ae, Hill, Gc, Hojvat, C, Hollon, N, Holt, E, Homola, P, Horandel, Jr, Horvath, P, Hrabovsky, M, Huege, T, Insolia, Antonio, Isar, Pg, Jandt, I, Jansen, S, Jarne, C, Johnsen, Ja, Josebachuili, M, Kaapa, A, Kambeitz, O, Kampert, Kh, Kasper, P, Katkov, I, Keilhauer, B, Kemp, E, Kieckhafer, Rm, Klages, Ho, Kleifges, M, Kleinfeller, J, Krause, R, Krohm, N, Kuempel, D, Mezek, Gk, Kunka, N, Awad, Ak, Lahurd, D, Latronico, L, Lauscher, M, Lautridou, P, Lebrun, P, de Oliveira MAL, Letessier Selvon, A, Lhenry Yvon, I, Link, K, Lopes, L, Lopez, R, Casado, Al, Lucero, A, Malacari, M, Mallamaci, M, Mandat, D, Mantsch, P, Mariazzi, Ag, Marin, V, Maris, Ic, Marsella, G, Martello, D, Martinez, H, Bravo, Om, Meza, Jjm, Mathes, Hj, Mathys, S, Matthews, J, Matthews, Jaj, Matthiae, G, Maurizio, D, Mayotte, E, Mazur, Po, Medina, C, Medina Tanco, G, Mello, Vbb, Melo, D, Menshikov, A, Messina, S, Micheletti, Mi, Middendorf, L, Minaya, Ia, Miramonti, L, Mitrica, B, Molina Bueno, L, Mollerach, S, Montanet, F, Morello, C, Mostafa, M, Moura, Ca, Muller, G, Muller, Ma, Muller, S, Naranjo, I, Navas, S, Necesal, P, Nellen, L, Nelles, A, Neuser, J, Nguyen, Ph, Niculescu Oglinzanu, M, Niechciol, M, Niemietz, L, Niggemann, T, Nitz, D, Nosek, D, Novotny, V, Nozka, H, Nunez, La, Ochilo, L, Oikonomou, F, Olinto, A, Selmi Dei DP, Palatka, M, Pallotta, J, Papenbreer, P, Parente, G, Parra, A, Paul, T, Pech, M, Pekala, J, Pelayo, R, Pena Rodriguez, J, Pepe, Im, Pereira, Las, Perrone, L, Petermann, E, Peters, C, Petrera, S, Phuntsok, J, Piegaia, R, Pierog, T, Pieroni, P, Pimenta, M, Pirronello, Valerio, Platino, M, Plum, M, Porowski, C, Prado, Rr, Privitera, P, Prouza, M, Quel, Ej, Querchfeld, S, Quinn, S, Rautenberg, J, Ravel, O, Ravignani, D, Reinert, D, Revenu, B, Ridky, J, Risse, M, Ristori, P, Rizi, V, de Carvalho WR, Rojo, Jr, Rogozin, D, Rosado, J, Roth, M, Roulet, E, Rovero, Ac, Saffi, Sj, Saftoiu, A, Salazar, H, Saleh, A, Greus, Fs, Salina, G, Gomez, Jds, Sanchez, F, Sanchez Lucas, P, Santos, Em, Santos, E, Sarazin, F, Sarkar, B, Sarmento, R, Sarmiento Cano, C, Sato, R, Scarso, C, Schauer, M, Scherini, V, Schieler, H, Schmidt, D, Scholten, O, Schoorlemmer, H, Schovanek, P, Schroder, Fg, Schulz, A, Schulz, J, Schumacher, J, Sciutto, Sj, Segreto, A, Settimo, M, Shadkam, A, Shellard, C, Sigl, G, Sima, O, Smialkowski, A, Smida, R, Snow, Gr, Sommers, P, Sonntag, S, Sorokin, J, Squartini, R, Stanca, D, Stanic, S, Stapleton, J, Stasielak, J, Strafella, F, Stutz, A, Suarez, F, Duran, Ms, Sudholz, T, Suomijarvi, T, Supanitsky, Ad, Sutherland, Ms, Swain, J, Szadkowski, Z, Taborda, Oa, Tapia, A, Tepe, A, Theodoro, Vm, Timmermans, C, Peixoto, Cjt, Tomankova, L, Tome, B, Tonachini, A, Elipe, Gt, Machado, Dt, Travnicek, P, Trini, M, Ulrich, R, Unger, M, Urban, M, Galicia, Jfv, Valino, I, Valore, L, van Aar, G, van Bodegom, P, van den Berg AM, van Vliet, A, Varela, E, Cardenas, Bv, Varner, G, Vasquez, R, Vazquez, Jr, Vazquez, Ra, Veberic, D, Verzi, V, Vicha, J, Videla, M, Villasenor, L, Vorobiov, S, Wahlberg, H, Wainberg, O, Walz, D, Watson, Aa, Weber, M, Weindl, A, Wiencke, L, Wilczynski, H, Winchen, T, Wittkowski, D, Wundheiler, B, Wykes, S, Yang, L, Yapici, T, Yelos, D, Yushkov, A, Zas, E, Zavrtanik, D, Zavrtanik, M, Zepeda, A, Zimmermann, B, Ziolkowski, M, Zong, Z, Zuccarello, Francesca, Aab, A., Abreu, P., Aglietta, M., Ahn, E. J., Samarai, I. Al, Albuquerque, I. F. M., Allekotte, I., Allison, P., Almela, A., Castillo, J. Alvarez, Alvarez Muñiz, J., Ambrosio, M., Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Avila, G., Badescu, A. M., Balaceanu, A., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Billoir, P., Biteau, J., Blaess, S. G., Blanco, A., Blazek, J., Bleve, Carla, Boháčová, M., Boncioli, D., Bonifazi, C., Borodai, N., Botti, A. M., Brack, J., Brancus, I., Bretz, T., Bridgeman, A., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero Mora, K. S., Caccianiga, B., Caccianiga, L., Cancio, A., Canfora, F., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Chiavassa, A., Chinellato, J. A., Chudoba, J., Clay, R. W., Colalillo, R., Coleman, A., Collica, L., Coluccia, MARIA RITA, Conceição, R., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Cronin, J., Dallier, R., D'Amico, Stefano, Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., de Jong, S. J., Mauro, G. De, Neto, J. R. T. de Mello, DE MITRI, Ivan, de Oliveira, J., de Souza, V., Debatin, J., Peral, L. del, Deligny, O., Giulio, C. Di, Matteo, A. Di, Castro, M. L. Díaz, Diogo, F., Dobrigkeit, C., D'Olivo, J. C., Dorofeev, A., Anjos, R. C. do, Dova, M. T., Dundovic, A., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fratu, O., Freire, M. M., Fujii, T., Fuster, A., García, B., Garcia Pinto, D., Gaté, F., Gemmeke, H., Gherghel Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Głas, D., Glaser, C., Glass, H., Golup, G., Berisso, M. Gómez, Vitale, P. F. Gómez, González, N., Gookin, B., Gordon, J., Gorgi, A., Gorham, P., Gouffon, P., Grillo, A. F., Grubb, T. D., Guarino, F., Guedes, G. P., Hampel, M. R., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Hasankiadeh, Q., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huege, T., Hulsman, J., Insolia, A., Isar, P. G., Jandt, I., Jansen, S., Johnsen, J. A., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Keilhauer, B., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Kuempel, D., Mezek, G. Kukec, Kunka, N., Awad, A. Kuotb, Lahurd, D., Latronico, L., Lauscher, M., Lebrun, P., Legumina, R., de Oliveira, M. A. Leigui, Letessier Selvon, A., Lhenry Yvon, I., Link, K., Lopes, L., López, R., Casado, A. López, Luce, Q., Lucero, A., Malacari, M., Mallamaci, M., Mandat, D., Mantsch, P., Mariazzi, A. G., Mariş, I. C., Marsella, Giovanni, Martello, Daniele, Martinez, H., Bravo, O. Martínez, Meza, J. J. Masía, Mathes, H. J., Mathys, S., Matthews, J., Matthews, J. A. J., Matthiae, G., Mayotte, E., Mazur, P. O., Medina, C., Medina Tanco, G., Melo, D., Menshikov, A., Messina, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Mockler, D., Molina Bueno, L., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Müller, G., Muller, M. A., Müller, S., Naranjo, I., Navas, S., Nellen, L., Neuser, J., Nguyen, P. H., Niculescu Oglinzanu, M., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, H., Núñez, L. A., Ochilo, L., Oikonomou, F., Olinto, A., Selmi Dei, D. Pakk, Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Paul, T., Pech, M., Pedreira, F., Pȩkala, J., Pelayo, R., Peña Rodriguez, J., Pereira, L. A. S., Perrone, Lorenzo, Peters, C., Petrera, S., Phuntsok, J., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porowski, C., Prado, R. R., Privitera, P., Prouza, M., Quel, E. J., Querchfeld, S., Quinn, S., Ramos Pollant, R., Rautenberg, J., Ravignani, D., Reinert, D., Revenu, B., Ridky, J., Risse, M., Ristori, P., Rizi, V., de Carvalho, W. Rodrigue, Fernandez, G. Rodriguez, Rojo, J. Rodriguez, Rodríguez Frías, M. D., Rogozin, D., Rosado, J., Roth, M., Roulet, E., Rovero, A. C., Saffi, S. J., Saftoiu, A., Salazar, H., Saleh, A., Greus, F. Salesa, Salina, G., Gomez, J. D. Sanabria, Sánchez, F., Sanchez Lucas, P., Santos, E. M., Santos, E., Sarazin, F., Sarkar, B., Sarmento, R., Sarmiento Cano, C., Sato, R., Scarso, C., Schauer, M., Scherini, V., Schieler, H., Schmidt, D., Scholten, O., Schovánek, P., Schröder, F. G., Schulz, A., Schulz, J., Schumacher, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sigl, G., Silli, G., Sima, O., Śmiałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sonntag, S., Sorokin, J., Squartini, R., Stanca, D., Stanič, S., Stasielak, J., Strafella, Francesco, Suarez, F., Durán, M. Suarez, Sudholz, T., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Taborda, O. A., Tapia, A., Tepe, A., Theodoro, V. M., Timmermans, C., Peixoto, C. J. Todero, Tomankova, L., Tomé, B., Tonachini, A., Elipe, G. Torralba, Machado, D. Torre, Torri, M., Travnicek, P., Trini, M., Ulrich, R., Unger, M., Urban, M., Valbuena Delgado, A., Galicia, J. F. Valdé, Valiño, I., Valore, L., Aar, G. van, Bodegom, P. van, Berg, A. M. van den, Vliet, A. van, Varela, E., Cárdenas, B. Varga, Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Villaseñor, L., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weindl, A., Wiencke, L., Wilczyński, H., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yang, L., Yelos, D., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zepeda, A., Zimmermann, B., Ziolkowski, M., Zong, Z., Zuccarello, F., Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Pierre Auger, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Elementary Particle Physics, Physics, Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Subatomique et de Cosmologie ( LPSC ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Institut de Physique Nucléaire d'Orsay ( IPNO ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de physique subatomique et des technologies associées ( SUBATECH ), IMT Atlantique Bretagne-Pays de la Loire ( IMT Atlantique ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Nantes ( UN ), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Bleve, C., Colalillo, Roberta, Coluccia, M. R., D'Amico, S., Mitri, I. De, Guarino, Fausto, Marsella, G., Martello, D., Perrone, L., Strafella, F., Valore, Laura, and Research unit Astroparticle Physics
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Physics - Instrumentation and Detectors ,Physics::Instrumentation and Detectors ,[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph] ,Astronomy ,Performance of High Energy Physics Detector ,primary [cosmic radiation] ,7. Clean energy ,01 natural sciences ,cluster finding ,Front-end electronics for detector readout ,EMCCDs etc) ,APDs ,[ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,visible and IR photons (solid-state) ,Photon detectors for UV ,010303 astronomy & astrophysics ,Instrumentation ,Mathematical Physics ,Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs etc) ,Physics ,Performance of high energy physics detectors ,EBCCDs ,performance [detector] ,electronics ,Detector ,Astrophysics::Instrumentation and Methods for Astrophysics ,Si-PMTs ,Instrumentation and Detectors (physics.ins-det) ,calibration and fitting methods ,Pattern recognition, cluster finding, calibration and fitting methods, Performance of High Energy Physics Detectors, Front-end electronics for detector readout, Photon detectors for UV, visible and IR photons (solid-state) ,Auger ,observatory ,Pattern recognition, cluster finding, calibration and fitting method ,G-APDs ,Scintillation counter ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,upgrade ,Electrónica ,Física nuclear ,Electricidad ,Astrophysics - Instrumentation and Methods for Astrophysics ,performance ,Pattern recognition, cluster finding, calibration and fitting methods ,Photomultiplier ,Cherenkov counter: water ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Cosmic ray ,Silicon photomultiplier ,Optics ,muon ,Pattern recognition ,0103 physical sciences ,surface ,photomultiplier: silicon ,ddc:610 ,High Energy Physics ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs etc) ,visible and IR photons (solid-state) (PIN diodes ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,scintillation counter ,Pierre Auger Observatory ,Scintillation ,010308 nuclear & particles physics ,business.industry ,CCDs ,showers ,calibration ,efficiency ,Experimental High Energy Physics ,RECONHECIMENTO DE PADRÕES ,electronics: readout ,silicon [photomultiplier] ,High Energy Physics::Experiment ,Amiga ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,business - Abstract
AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory designed to extend its energy range of detection and to directly measure the muon content of the cosmic ray primary particle showers. The array will be formed by an infill of surface water-Cherenkov detectors associated with buried scintillation counters employed for muon counting. Each counter is composed of three scintillation modules, with a 10 m$^2$ detection area per module. In this paper, a new generation of detectors, replacing the current multi-pixel photomultiplier tube (PMT) with silicon photo sensors (aka. SiPMs), is proposed. The selection of the new device and its front-end electronics is explained. A method to calibrate the counting system that ensures the performance of the detector is detailed. This method has the advantage of being able to be carried out in a remote place such as the one where the detectors are deployed. High efficiency results, i.e. 98 % efficiency for the highest tested overvoltage, combined with a low probability of accidental counting ($\sim$2 %), show a promising performance for this new system., Comment: 24 pages, 12 figures
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- 2017
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