Beam Telescopes a he DESY II Tes Beam
Ad ian He ke on behal o he DESY II Tes Beam c ew
BTTB13, 19 May 2025, Valencia
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 2
In oduc ion
●The DESY II TB acili y p o ides h ee beam elescopes, one a each beam line
●Can be eques ed when applying o beam ime (No e: Di e en elescope models a di e en beam lines)
●T acking a he DESY TB:
–Rela i ely low beam ene gies: Be ween 1 and 6 GeV
●Good ack esolu ion equi es elescopes wi h low ma e ial budge
(i.e. hinned monoli hic senso s)
–Beam s uc u e and pa icle a es:
●Mos ly one elec on ‘a a ime’ wi h ...
●… in ege mul iples o ~ 1 μs in be ween
●A e age a es up o ew imes
10,000 pa icles/s
(depending on ene gy and beam line)
See alk on DESY II TB:
S. Acke mann, Mon., 14:10
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 3
●In ope a ion since ca. 15 yea s ago
●La ge global use base; a ailable also a CERN, ELSA, and SLAC (o TRIUMF?)
●MIMOSA26:
–Ac i e a ea: ~ 2.0 cm x 1.0 cm
–Pixel size: 18.4 μm x 18.4 μm
–Rolling shu e eadou wi h 115 μs pe iod
●T ack poin ing esolu ion down o ~ 2 μm possible
●Two olling shu e cycles ead ou pe igge e en → long e en ime (and no hi ime in o ma ion)
●Synch oniza ion wi h TLU ia handshake, ecei es igge + igge ID, sends busy wi h leng h 115 μs o 230 μs
Cu en ly a ailable beam elescopes (1/2)
MIMOSA26-based EUDET- ype beam elescopes (TB21, TB24)
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 4
Telescope ope a ion and DUT in eg a ion
●In eg a ion o use de ices wi h EUDET- ype elescopes is handled ia T igge Logic Uni (TLU) and EUDAQ2
●To keep he EUDET- ype lexibili y o DUT in eg a ion and s ay compa ible wi h al eady exis ing in eg a ions,
i ’s p e e able o ha e new elescopes in eg a ed again wi h / in:
●In sho : Enables ha dwa e synch oniza ion o
di e en DAQ sys ems ia dis ibu ion o common
igge and / o clock
●See p e ious alk
●Modula so wa e amewo k o con ol
da a aking wi h mul iple DAQ sys ems
●P o ides GUI, basic uncon ol unc ionali y,
online moni o , in e ace wi h analysis so wa e
(Co y eckan), e c.
AIDA(2020) TLU EUDAQ2
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 5
●In use ope a ion since summe 2022
●In eg a ed wi h AIDA2020 TLU and EUDAQ2
→ Compa ible wi h exis ing EUDET- ype in eg a ions
●ALPIDE:
–Ac i e a ea: ~ 3.0 cm x 1.4 cm
–Pixel size: 29.24 μm x 26.88 μm
–He e: T igge ed eadou o a sho ime in e al O(1 μs)
●T ack poin ing esolu ion down o 3 μm possible
●TLU in eg a ion uses synch onous mode wi h igge ID; busy signal wi h cons an du a ion o 20 μs
Cu en ly a ailable beam elescopes (2/2)
Adenium: An ALPIDE-based p o o ype (TB22)
Mage , M. (2016) ALPIDE, he Monoli hic Ac i e Pixel Senso o he ALICE ITS upg ade.
Liu, Y. e al. (2023) ADENIUM – A demons a o
o a nex -gene a ion beam elescope a DESY.
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 6
Pe o mance o Adenium
●Ex ensi ely es ed in use ope a ion by now and e y well ecei ed:
–Easy ansi ion coming om M26 elescope
–S able ope a ion
–Pe o mance pa ame e s gi en
by use o ALPIDE:
E iciency > 0.99 o each laye
→ > 0.99^6 ≈ 0.94 o al
~ 1 ack pe igge e en
Measu ed ack poin ing
esolu ion s beam ene gy
Co ela ion in compa ison
wi h MIMOSA26
ALPIDE
M26
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 7
An upg aded common beam elescope (1/3)
●A la ge global use base is elying on a ailabili y o EUDET- ype elescopes a di e en TB acili ies
●Issues ega ding u u e ope a ion o cu en M26-based EUDET- ype elescopes:
–Dep eca ed componen s (sys em will each end-o -li e a some poin )
–Di icul ies in keeping up wi h inc easing equi emen s in de ec o R&D
●Task in AIDAinno a (Eu opean unding p ojec ; successo o EUDET) aimed a de eloping an upg aded e sion o
a common beam elescope compa ible wi h exis ing EUDET- ype DUT in eg a ions
–ALPIDE chosen as bes a ailable senso op ion
(p oduc ion-g ade hin MAPS wi h small pixels and as eadou a chi ec u e)
–Adenium was i s p o o ype
●Issues no ega ding pe o mance bu main ainabili y
●Will be kep in ope a ion o now bu he e will no be mo e copies
●Had o s a a esh o de elop p oduc ion e sion
In oduc ion
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 8
An upg aded common beam elescope (2/3)
Towa ds he p oduc ion e sion
Each laye as s andalone de ice; hos s i s own SoC, uns
i s own ope a ing sys em → expensi e (& upda es edious)
One cen al SoC
SoC glued di ec ly o eadou boa d (main cus om
ha dwa e componen , 6x pe elescope) → no lexibili y
SoM
Design a USTC → no access o PCB design iles
and i mwa e
Design by s a a DESY elec onics depa men
→ ull access, gua an eed long- e m suppo
Fi m- and so wa e de eloped
om sc a ch
Fi m- and so wa e implemen ed
in Ca ibou
Adenium P oduc ion e sion
| Beam Telescopes a he DESY II Tes Beam | Ad ian He ke | 19 May 2025 9
An upg aded common beam elescope (3/3)
Design
ALPIDE on
chipboa d wi h
edge connec o
as p o ided by
ALPICE
collabo a ion
Cus om PCB:
Essen ially adap e
om edge connec o
o DisplayPo
Powe connec o
12V; elescope
laye s powe ed
o e DisplayPo
Zynq Ul aScale+
(SoM: ME-XU1-15EG-
2I-D12E; same as o
Ca ibou 2.0; on
comme cial baseboa d)
Cus om ‘hub’ PCB:
In e aces elescope
laye s and TLU wi h SoC
(ins ead o CaR boa d)
●40 MHz clock and T0 om TLU
o synch oniza ion
●T igge ed eadou
●Busy as long as e en bu e s on
ALPIDE o FPGA a e ull
●Cu en bo leneck o a e capabili y:
CPU eading om FPGA bu e s
→ Implemen a ion o DMA ongoing
Co esponds o
a e age a e o
~ 10,000 e en s/s
