ARAPUCA: a new concept Interface Proto-DUNE Single-Phase ...
Transcript of ARAPUCA: a new concept Interface Proto-DUNE Single-Phase ...
Proto-DU
NE Single-Phase PD
Design,
Assem
bly and APA Interface
AR
APU
CA
: a new concept
Flavio Cavanna
LBN
C M
tg - CE
RN
June 22-24, 2017
PDs M
ounted in APA Fram
e
2 10 PDs per APA Fram
e PD
active area 2076mm
X 84mm
(each) APA Fram
e area (Outside) 6060m
m X 2300m
m
PD Coverage fraction: ~12.5%
5 modules install
From this side
… And 5 from
the other side
IU design (Radiator) FN
AL design (Dipped)
Modular PD
Concept
•The reference PD design for both ProtoDUNE and the single phase FD call for 10 individual PD m
odules per APA frame,
installed following APA assembly
•M
odule dimensions:
-2127.2m
m long X 107m
m wide X 18 m
m
thick (outside)-
2090.5mm
long X 96.1mm
wide X 14.6mm
thick (Inside APA)
-PD Dim
ensions driven by available installation slot in the APA (108m
m long X
19mm
tall)•
Modules m
asses:-
IU design: 2.18 kg-
FNAL design: 1.72 kg
•M
odular design and post-APA assembly
installation allows for testing of different PD design concepts
•Two principle designs: IU design with radiator plates, FNAL design with TPB-dipped light guide bar
Design Sum
mary
•Current plans call for 2 principle designs to be tested in Proto-DUNE, with a lim
ited number (2) of prom
ising alternate designs (e.g. ARAPUCA):-
Radiator plate (IU) Design consists of 12 TPB-coated plastic radiator plates (to convert the 128nm scintillation light
to blue light) mounted over a secondary light guide (Y-11-like bar, to convert the blue light to green and transport it to
the SiPMs) (29 in ProtoDUNE)
-FNA) design calls for a single TPB-dip-coated wavelength shifter/light guide bar to shift the scintillation light and transport it to the SiPM
s (29 in ProtoDUNE)
-N.B.: The m
odularity of the PD design, as well as the fact that they are installed into the APA frame im
mediately
before the APA is installed into the cryostat at CERN, allows for other proposed designs (such as ARAPUCA)
•M
odules of both designs are supported inside the APA frames in stainless steel rails, and are inserted into the
APA frames after the fram
es are wire-wrapped. Both PD modules fit within the sam
e APA support structure
•Both designs are read out with 12 sensL 60035 C-series SiPM
s. The same readout board is used for both
designs
•SiPM
s are grouped into sets of 3, and signals are carried through shielded twisted pair.-
Cables are custom PTFE-jacketed Cat 6 cables, with 4 twisted pairs per cable (1 cable per PD m
odule)
-Cable connectors are standard RJ-45 Cat-6 connectors
-Two cable segm
ents per readout path:•
Cryogenic (13.5m long depending on the PD position in the APA) from
the SIPM PCB to the cryostat flange
•External cables (~3m
long), from the cryostat flange to the readout electronics (SSPs)
•Identical cable length for all m
odules to minim
ize fabrication and analysis complications
•Custom
readout electronics (SSPs) used to read out SiPM signals are m
ounted on top of the cryostat.
4
Indiana University PD
Design
5
Thermal Com
pliance Spring
6 IU M
aximum
Module D
imensions
9
Readout End D
etail
7
FNA
L Design (D
ipped Bar)
8
FNA
L Maxim
um M
odule Dim
ensions
9
Readout End A
ssembly
10
AR
APU
CA PD
Module C
oncept
11
AR
APU
CA D
etails•
Two of the modules in the final APA fram
e will be ARAPUCA m
odules•
AR
APU
CA m
odules, while very different in concept from
the existing PD
modules, have been designed to fit in the
same slots in the A
PA as “Standard” PDs
•The ARAUPCA will be tested head-to-head against IU-style PDs in TallBo in August
•Production Readiness Review in early Septem
ber•
Fabrication in September-O
ctober•
Ready for shipping with final PD modules in Decem
ber.•
NB: SiPM selection for ARAPUCA still under consideration.
12
SiPM M
ount PCB
(“Hover B
oard”)
13
SMT RJ-45 connector
0.4mm
gap SiPM
/Light Guide
Standoff
Active area Provides ~80% Bar end coverage
12 SiPMs, 0.2m
m separation (2.2m
m at each end)
PD/A
PA Mounting Structure
14
Frame inside length 2096.8m
m
96.83mm
wide
16mm
tall (Inside)
Mounting Fram
e Inside Dim
ensions 98.1m
m w
ide X 16.6mm
tall
Test Installations at CSU, PSL
15
CSU test Installation
PSL test Installation (Full-Size APA)
Installation Tooling
16
Cat 6 C
onnection to SiPM PC
B
17
RJ-45 connector on Cryogenic connector Plugging in
18 PD Cable Strain Relief
Cable Tie 2 places
Shared Cable Tray
19
PD Cables Run U
p Into APA Cable Tray (5 each side)
AR
AP
UC
A a new
(LAr) S
cintillation light detection concept - proposed for D
UN
E FD
original idea: E. S
egreto (Univ. C
ampinas - B
R)
A. M
achado (Univ. Fed. A
BC
- BR
)
current Collaboration:
SiPM PCB
Mount Backplane
Vikuity ReflectorG
-10 Cartucho Frame
G-10 Filter
Holding Fram
e
5/17/201723
Dichroic filter
P-terphenyl on filter side (external) TPB on filter side(internal)
A
6
B
54
D
6
RY170522
54
6X6MM-MPPC
C
32
1
AB
32
c
D
ba
FIR
ST IS
SU
E 初
発行
1
C
51
MA
RK
記号
CO
NTEN
TS
記 事
DA
TE
年月
日
AP
PR
承認
CH
CK
検図
CH
CK
検図
DESN
設計
DR
AW
製図
尺度
UN
IT
PR
OJ
三角
法
単位
SC
ALE
名称
DW
G.N
o
図番
TIT
LE
REV
改訂
Issues experienced with S
ensL SiP
M due to packaging failure (epoxy protective
layer cracking in LAr)
New
design developed in collaboration w/ H
AM
AM
ATSU
- packaging w
ith protective quartz window
(no issues at LAr T, better transparency),
higher break-out V - need (very) m
inor modification of S
SP - B
ias V circuit.
Test ongoing at FNA
L
Results w
ill be first released at TAU
P Conference - A
ug. 17
Presenter | Presentation Title
AR
APU
CA tests at TallB
o: Jan and March 2017
•Thanks to:
•The Ferm
ilab LDRD program.
•Eileen Hahn, Jim
Freeman, Ron Davis, Bill M
iner, Brian Rebel and several others.
5/16/201728
Picture of tallboPicture of arapuca rack