1. KLOE-2: Status report

2. Overview Two major ongoing activities
Maintenance and upgrade of the KLOE apparatus, includes
beam pipe and inner region
gas system
electronics (DC, calorimeter,trigger)
L2 CPUs
networking
online farm
computing power for data reconstruction
storage system
R&D for the new detector systems
the gg-taggers
the inner tracker
the crystal calorimeters for the inner region
the quadrupole instrumentation
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

3. Plan approval In June the part not already funded has been approved
In September plans for year 2009 have been reviewed
They include, for step-0, or KLOE1.5:
detector revision and refurbishment,
setup and test of the new DAQ,
revision and test of the Slow-Control,
setup of a new storage system,
roll-in operations,
data taking
The gg-tagger design will be ready in March.
Funds available.
Tagger will be reviewed in April.
Three months for the realization
Installation with the IR (LET) and the other works on DAFNE
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

4. KLOE-2 plans
The other upgrades have been funded to complete the R&D phase and finalize the detector design.
Inner tracker, end :
test of the procedure for layer construction using CF cylinders and anode embedded
test of the new (large area) GEM
test and optimization of the readout system on the new devices
TDR for the inner tracker – End of June 2009
Crystal calorimeters (CCALT):
BTF test-beam : LYSO crystals from several manifacturers, SiPM coupling, readout system from LNF Electronic Service
Quadrupole Instrumentation (QCALT):
Test on a small prototype
Detector design – End of August 2009
Realization of the module December 2009
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

5. Beam pipe Work completed Interaction zone
Beam pipe with quadrupoles and QCAL extracted from KLOE
Operation carried out middle of September
alignment of insertion rails
insertion of extraction shell
connection to beam pipe
Extraction
Work completed
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

6. Beam pipe modification
Spherical Be beam pipe, 10 cm radius, to minimize Ks interactions
Optimal sample for QM interference
Internal to the sphere: 50 mm Be cylinder
Preferred solution for connection with the new beam pipe:
external part as it is, connected to the first quadrupole, QD0
internal cylinder connected to the new beam pipe with cone-shaped Al section
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

7. Beam-pipe supports
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

8. KLOE B-field correctors
Studies have been carried out by AD for three B-field intensities: 5.2, 4.5 and 3.0 kGauss
A new correcting dipole after QF1 needed
Compatible with KLOE DC, further detector upgrades, end-cap opening
QD0
QF1s
Bkloe=5.2 kG
No dipole
∫Bdz=446Gm
Y(m)
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

9. Summary of plans for the IR
Continuous cooperation with the AD established
Milestones:
Extraction of the IR from KLOE – Done
Cut the central part – Dec08
Design of the connection part of the beam pipe ready – Dec08
Beam pipe available in May09
Design of the dipoles ready – Dec08
Dipoles available in summer 2009
Design of the Beam pipe mechanical support ready – Feb08
Planning compatible with
KLOE roll-in in summer
Beam pipe insertion – Sep09
Cryogenic system reconnection – Sep09
Start of Magnet cooling – Sep09
DAFNE commissioning with KLOE – Nov09
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

10. Gas system Gas system reorganized To do list
Reallocation of external Gas storage racks
control system on new PC - readout boards - ready
Manual operation established
new readout boards (and PC) purchased (spares)
To do list
Investigate if the gas flux can be reduced (gas analyzer)
Investigate if the control scheme can be simplified
Re-establish automatic procedure
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

11. Detector preparation DC: EMC Trigger continuing flushing with nitrogen
Crate cleaning
FEE debugging with pulser system
in summer: He-Isobutane flushing and debugging completion
readout boards : spares in production
Test stand for ADC/TDC
EMC
FEE and HV debugging
Trigger
Spares in production
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

12. DAQ L2 CPU (Motorola) have been ordered. Waiting for the delivery
FDDI Switch
FDDI
connection
DFC
Farm CPU
VME
+ AUXbus
Rock
FEE crate
RockM
CBUS
CPU
Vic
L2 crate
L2 CPU (Motorola) have been ordered. Waiting for the delivery
Online Farm (RM3). Waiting for installation
Networking (RM3). Ordered.
Slow Control:
Porting of software on KLOESLOW (AIX) proceeds
spare control boards refurbished during 2009
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

13. Computing Upgrades New hardware has been bought and delivered:
2 fast servers for user analysis (fibm11,12 replacement)
100 cartridges + 4 TB disk space
Offline farm power to be improved from 30 fb-1/day to 50 fb-1/day
Purchase of 16 Power5+ CPU, 1.9 GHz, 16 GB RAM
New servers being put on-line
KRUNC (KLOE Run Control)
2 new DB servers
new KLOESLOW
Storage capability to be increased by 0.9 PB
corresponding to 5 fb-1 at 175 TB/fb-1 (Raw + rec + dst + MCdst x 2)
Upgrade of Library #2. From 6 to 12 new mount points with higher writing density
0.4 PB obtained writing at higher density the existing 2100 cartridges (from 300  500 GB)
0.5 PB obtained from 500 new cartridges of 1 TB
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

14. Storage system upgrade
DAS Disk system (30 TB) for data taking and data processing
Storage capability to be increased by 0.9 PB
corresponding to 5 fb-1 at 175 TB/fb-1 (Raw + rec + dst + MCdst x 2)
Upgrade of Library #2. From old 6 to 12 new mount points
0.4 PB obtained writing at higher density the existing 2200 cartridges (from 300  500 GB)
0.5 PB obtained from 500 new cartridges of 1 TB
New controller and ~50 TB of disk space for DSTs
Funded
EU bid starting in March
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

15. gg-physics with KLOE1.5 HET (450 MeV region) LET (200 MeV region)
The tagger for gg-physics can significantly improve the KLOE sensitivity helping in background reduction and giving the invariant mass
Tagger system design will be reviewed in April (documentation ready in March)
Electrons (positrons) in the high-energy range leave main orbit after the dipole
Those of low-energy escape BP in the quadrupole region
LET (200 MeV region)
HET (450 MeV region)
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

16. Electron tracking DAFNE magnetic layout simulated with MAD and BDSIM
LET
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

17. Test beam at BTF to measure energy and time resolutions by end 2008
LET Detector
QCALT
LET
Technology: PbWO + SiPM
3x10 crystals
5 cm thick (enough to contain shower due to high impact angle)
3x3 mm2 SiPM (2 for each crystal)
~2pe/MeV expected  σE/E = 5÷10%
Test beam at BTF to measure energy and time resolutions by end 2008
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

18. Test Beam at LNF PbWO LYSO SG Scionix Scio LFS
Built a crystal matrix in order to study the different LYSO-like options for CCALT and the PbWO for LET
Energy resolution, time resolution, efficiency, spatial resolution to be measured and compared with simulation
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

19. HET positioning FEE detector
Tecnology: Si micro strip + plastic scintillator
Dipole is used as a spectrometer
Energy resolution depends on strip pitch (final design by March 2009)
Possible placement in an accessible H-H’ flange after the dipoles
FEE
detector
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

20. Inner Tracker Numbers IT Proto 1.0 5 tracking layers
200x500 µm spatial resolution
700 mm active length
from 150 to 250 mm radii
1.8% X0 total radiation length
Technology: Cylindrical-GEM
Inner Tracker
Drift chamber
IT Proto 1.0
Constructed in 2007
150 mm radius (Layer 1) x mm active length
650 µm pitch only along Z
192 ch equipped with CARIOCA
128 ch with GASTONE
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

21. 2 (global) = 2 (GEM) + 2 (tracker)
Test beam results show
triple-GEM efficiency as high as 99.6%
spatial resolution of 200 mm with a readout pitch of 650 mm
GEM residuals with respect to the
track reconstructed by drift tubes (150 mm resolution)
2 (global) = 2 (GEM) + 2 (tracker)
2 (GEM) = 2502µm2 – 1402µm2  2002µm2
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

22. Inner Tracker IT-CGEM Prototype 1.0 Next Prototypes Engineering work
Construction
X-ray test
Cosmic-ray test
CERN-PS
Next Prototypes
10x10 cm2 chamber to test XV-readout (RD51 at CERN)
50x70 cm2 chamber to test new large GEM foils
Carbon-fiber cylinder for mechanical tests + anode construction procedure
Engineering work
Toolings for detector construction – from full-size prototype and ongoing R&D
Mechanical structure for readout electronics
Integration and installation system - started
Simulations
Gluing region electric field
New GEM hole geometry
Finite-elements mechanical simulations (ANSYS)
Front-end Electronics
GASTONE 16CH
GASTONE 64CH (prototype by end of 2008)
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

23. FEE-HV-Detector Integration
carbon-fiber shell
Study of a possible arrangement of HV-connectors, gas inlets, mechanical support for FEE boards
FEE board
kapton readout circuit
ASIC
fiberglass FEE support
gas inlets/outlets
signal connector
HV connector
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008 23

24. QCALT: a Quad Calo with Tiles
Technology: Scintillator-tiles + WLS + SiPM
12 Wedges with 20 towers along Z
Each tower with 5 layers of tiles (5x5x0.5 cm3)
3.5 mm Tungsten used as absorber to reduce space
Total calorimeter depth 4.75 cm equivalent to 5.5 X0
Integrated design with IT 24
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

25. Tile Calorimeter Fibers: Saint Gobain SC and MC, Kuraray SCSF81
Tiles: BC 404 and BC 408
3mm thick SiPM 400pixel
5mm thick SiPM 100pixel
Plans:
dec 08. QCALT small proto: 3 towers and 2 planes
dec 09. Module 0 with final SiPM-Fiber connectors and proto final electronics (5xFEE amps + 3 VME SDSQ boards (HV supply + discr. + sum)
25 p.e. per MIP
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

26. Conclusions
Dafne performance confirmed our plans for preparing KLOE to data taking
The project has been completely funded, including the R&D activities for all of the detector upgrades
We have started a close interaction with the AD for the IR
We are also strongly motivated to install the gg-tagger during 2009.
Technical Report on gg-tagger ready in March, reviewed in April by CSN1
We are thinking to organize sometimes in February-March an informal workshop to review and prioritize the physics objectives of the project. Suggestions are welcome.
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

27. Spares
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

28. Drift Chamber
DC still kept with HV OFF. Continuous flushing of Nitrogen
Survey of FEE channels (Pre,HV,ADS) to be done
Trigger system
CAEN HV system
SY527 +A934AP
ADS board
Input Ampl.
Analog Sum
Disciminator
Trigger Stage
Control
Suppli board
ADC board
TDC board
Control board
Pre board
HV board
Pre LVPS board
Caffe board
DAQ
Production in progress of 1 equivalent full rack of ADS and CCC.
Spare amps arriving
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

29. EMC FEE/HV 8 HV crates have “fan failure”. Cleaning in progress
Test-stand for TDC/ADC debugging ready
Custom LV System
±6V
50 A
±5V
Linear Low Noise power supply
DAQ
TDC board
Monostable
TAC
A/D
CTRL logic & interfaces
Start
Stop
CAEN HV system
SY527 +A932AP
L0 trigger
SDS board
x 1
CFD
DELAY LINE + –
Vth
Dis.
Adder
Shaper
BESSEL FILTER
PM base HV
divider PM
PREAMP
50 Ω cable
Trigger system
DAQ
ADC board
V/I
S/H
CTRL logic & interfaces
A/D – +
CCC board
Test Pulser
FEE Monitor & control
THR setting
Slow control interface
L0 trigger
Components for SDS,CCC and Power supply purchased
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008

30. Trigger Spares in production: Trigger supervisor (Bari)
Calorimeter
4880 PM
Drift Chamber
12582 PM
Sum of
EMC signals
Digitization
and Logic
processing
Multiplicity
counting
SDS
PIZZA
DISH
PASTA
Sum and
digitization of
DC signals
Superlayer
building
DC Trigger
Logic
Final
decision
TORTA
EMC trigger logic
Synchronizer and
Fan-out
Trigger supervisor
FIO T1 T2
T1ACK
T2Y
EMC TDC-ADC
DC TDC DAQ
ADS
Suppli
Pre Caffe
Caffe
Spares in production:
Trigger supervisor (Bari)
3 Trigger distributors
2 TORTA
4-6 Trigger receivers
C.Bloise - 37th Scientific Committee - LNF, December 1th, 2008