Eu opean Nuclea Physics Con e ence 2025
Abs ac ID : 223
Fi s pe o mances o EICROC ASIC o ead-ou
pixela ed AC-LGAD senso s o he Elec on-Ion
Collide (EIC)
Con en
A. Sha ma1, G. D’Amen2, F. Bouyjou3, O. B and-Foissac1, V. Chauma 1, W. Chen2, S. Con o i4, T. Co ne 1,
F. Dulucq4, S. Ex ie 4, G. Giacomini2, K. Ha a5, A. Ikbal6, T. Imamu a5, M. Idzik7, A. Jen sch2, S. Ki a5, B.-Y.
Ky1, D. Ma chand1, J. Mo on7, K. Nakamu a8, S. Paul2, P. Shanmugana han2, N. Seguin-Mo eau4, L. Se in1,
D. Thienpon 4, C. de La Taille4, A.-S. To en o-Coello1, P. T ibedy2, A. T icoli2, A. Ve plancke4
1Uni e si é Pa is-Saclay, CNRS/IN2P3, IJCLab, O say 91405, F ance
2B ookha en Na ional Labo a o y, 11973 Up on, NY, U.S.A.
3Uni e si é Pa is-Saclay, CEA, IRFU, Cen e CEA Pa is-Saclay, Gi -su -Y e e 91191, F ance
4OMEGA, CNRS, École Poly echnique, Ins i u Poly echnique de Pa is, Palaiseau 91120, F ance
5Uni e si y o Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Iba aki, Japan
6Ken S a e Uni e si y, 44242 Ken , OH, U.S.A.
7AGH Uni e si y o Science and Technology, al. Adama Mickiewicza, 30-059 K aków, Poland
8High Ene gy Resea ch O ganiza ion (KEK), 1-1 Oho, Tsukuba, 305-0801, Iba aki, Japan
Finding he answe s o he long-s anding ques ions, such as, eme gence o mass and spin o he p o on om
pa ons, sa u a ion o gluon densi y, and gluon momen um dis ibu ion inside he p o on and nuclei, mo i-
a ed he EIC [1] o be de eloped a B ookha en Na ional Labo a o y, USA. The i s EIC de ec o , ePIC (elec-
on P o on-Ion Collision expe imen ), is comp ised o a cen al ba el de ec o , as well as ex ensi e beamline
de ec o s in he ou going elec on ( a -backwa d) and had on ( a - o wa d) beam di ec ions. The a - o wa d
(FF) de ec o s include Roman po s, which a e placed inside acuum and a e in ended o de ec p o ons and
ions sca e ed a e y small angles (~ 5 m ad) in he o wa d di ec ion, a ~30m downs eam om he in e ac-
ion poin . The main goal o he FF de ec o s is o ag exclusi e and di ac i e e en s and o econs uc hei
ans e se momen um wi h a esolu ion o ~ 10 MeV/c. This is ob ained by de eloping a new gene a ion o
4D acking senso s, pixela ed AC-LGADs (capaci i ely-coupled Low-Gain A alanche Diode, pixel o 500x500
µm2) [2][3] capable o p o iding he equi ed spa ial (less han 50 µm elying on cha ge sha ing among pixels)
and iming (~ 30 ps) esolu ions. A e hese AC-LGADs ha e been ead-ou using ALTIROC0 [4] as a i s
a emp , an op imized ead-ou chip, EICROC (32x32 pads), is being designed by OMEGA and he cha ac e -
iza ion o he i s p o o ype, EICROC0 (4x4 pads) [5], coupled o an AC-LGAD senso is being pe o med a
IJCLab. The EICROC0 is a sys em-on-chip wi h analog and digi al p ocessing including o each o he 16 chan-
nels a as low-noise ans-impedance p eampli ie , ollowed by wo pa hs: a as pa h wi h a disc imina o
connec ed o a 10-bi Time- o-Digi al Con e e (CEA/I u) o ime measu emen (ToA) wi h a 25 ps accu-
acy; and a slow pa h wi h shape connec ed o an 8-bi 40 MHz successi e app oxima ion Analog- o-Digi al
Con e e (AGH K akow) p o iding ampli udes. The pe o mances o pixela ed AC-LGAD senso s ead-ou
by EICROC0, ob ained om p eampli ie as well as digi al (TDC and ADC) da a and elying on measu emen s
wi h he in e nal cha ge injec ion sys em, a Be a sou ce and an in a ed lase , will be p esen ed.
Acknowledgemen :
This wo k is bene i ing om suppo om he F ench Agence Na ionale de la Reche che (ANR), unde g an
ANR-24-CE31-5571 (p ojec ROAD_4_EIC).
Re e ences:
[1] R. Abdul Khalek e al., “Science Requi emen s and De ec o Concep s o he Elec on-Ion Collide : EIC
Yellow Repo ”, Nucl. Phys. A 1026 (2022).
[2] G. Giacomini e al., “Fab ica ion and pe o mance o AC-coupled LGADs”, JINST 14 (2019), P09004.
[3] S. Ki a e al., “Op imiza ion o capaci i ely coupled Low Gain A alanche Diode (AC-LGAD) senso s o
p ecise ime and spa ial esolu ion”, NIM A 1048 (2023) 168009.
[4] G. D’Amen e al., “Signal o ma ion and sha ing in AC-LGADs using he ALTIROC0 on -end chip”, JINST
17 (2022) P11028.
[5] A. Ve plancke e al., “EICROC: an ASIC o ead-ou he AC-LGAD senso s o he Elec on-Ion Collide
(EIC)”, con ibu ion o he p oceedings o he Topical Wo kshop on Elec onics o Pa icle Physics, Sep . 30 h
–Oc . 04 h, 2024, Glasgow, UK, o be published in JINST 2025.
Au ho s: SHARMA, A zoo (IJCLab, Uni e si é Pa is-Saclay, CNRS/IN2P3, O say);TRIBEDY, P. (B ookha en
Na ional Labo a o y, 11973 Up on, NY, U.S.A.)
Co-au ho s: BOUYJOU, F. (Uni e si é Pa is-Saclay, CEA, IRFU, Cen e CEA Pa is-Saclay, Gi -su -Y e e 91191,
F ance);BRAND-FOISSAC, O. (Uni e si é Pa is-Saclay, CNRS/IN2P3, IJCLab, O say 91405, F ance);CHAUMAT, V.
(Uni e si é Pa is-Saclay, CNRS/IN2P3, IJCLab, O say 91405, F ance);CHEN, W. (B ookha en Na ional Labo a o y,
11973 Up on, NY, U.S.A.);CONFORTI, S. (OMEGA, CNRS, École Poly echnique, Ins i u Poly echnique de Pa is,
Palaiseau 91120, F ance);CORNET, T. (Uni e si é Pa is-Saclay, CNRS/IN2P3, IJCLab, O say 91405, F ance);D’AMEN,
G. (B ookha en Na ional Labo a o y, 11973 Up on, NY, U.S.A.);DULUCQ, F. (OMEGA, CNRS, École Poly echnique,
Ins i u Poly echnique de Pa is, Palaiseau 91120, F ance);EXTIER, S. (OMEGA, CNRS, École Poly echnique, Ins i-
u Poly echnique de Pa is, Palaiseau 91120, F ance);GIACOMINI, G. (B ookha en Na ional Labo a o y, 11973
Up on, NY, U.S.A.);HARA, K. (Uni e si y o Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Iba aki, Japan);IDZIK,
M. (AGH Uni e si y o Science and Technology, al. Adama Mickiewicza, 30-059 K aków, Poland);IKBAL, A.
(Ken S a e Uni e si y, 44242 Ken , OH, U.S.A.);IMAMURA, T. (Uni e si y o Tsukuba, 1-1-1 Tennodai, Tsukuba,
305-8571, Iba aki, Japan);JENTSCH, A. (B ookha en Na ional Labo a o y, 11973 Up on, NY, U.S.A.);KITA, S.
(Uni e si y o Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Iba aki, Japan);KY, B.-Y. (Uni e si é Pa is-Saclay,
CNRS/IN2P3, IJCLab, O say 91405, F ance);MARCHAND, D. (Uni e si é Pa is-Saclay, CNRS/IN2P3, IJCLab, O -
say 91405, F ance);MORON, J. (AGH Uni e si y o Science and Technology, al. Adama Mickiewicza, 30-059
K aków, Poland);NAKAMURA, K. (High Ene gy Resea ch O ganiza ion (KEK), 1-1 Oho, Tsukuba, 305-0801, Iba aki,
Japan);PAUL, S. (B ookha en Na ional Labo a o y, 11973 Up on, NY, U.S.A.);SERIN, L. (Uni e si é Pa is-Saclay,
CNRS/IN2P3, IJCLab, O say 91405, F ance);SHANMUGANATHAN, P. (B ookha en Na ional Labo a o y, 11973
Up on, NY, U.S.A.);SIGUIN-MOREAU, N. (OMEGA, CNRS, École Poly echnique, Ins i u Poly echnique de Pa is,
Palaiseau 91120, F ance);THIENPONT, D. (OMEGA, CNRS, École Poly echnique, Ins i u Poly echnique de Pa is,
Palaiseau 91120, F ance);TORRENTO-COELLO, A.-S. (Uni e si é Pa is-Saclay, CNRS/IN2P3, IJCLab, O say 91405,
F ance);TRICOLI, A. (B ookha en Na ional Labo a o y, 11973 Up on, NY, U.S.A.);VERPLANCKE, A. (OMEGA,
CNRS, École Poly echnique, Ins i u Poly echnique de Pa is, Palaiseau 91120, F ance);DE LA TAILLE, C. (OMEGA,
CNRS, École Poly echnique, Ins i u Poly echnique de Pa is, Palaiseau 91120, F ance)
P esen e : SHARMA, A zoo (IJCLab, Uni e si é Pa is-Saclay, CNRS/IN2P3, O say)
T ack Classi ica ion: Accele a o s and Ins umen a ion
Con ibu ion Type: O al P esen a ion
Submi ed by SHARMA, A zoo <a zoo.sha [email protected]. > on Tuesday 1 Ap il 2025
Las modi ied: Tuesday 1 Ap il 2025
