Post on 21-Jan-2016
LLundund
YYorkork
CCologneologne
CaCalorimeterlorimeter
• present status• test results• with AGATA@GSI
Thanks to Andreas Wendt !!
RIB vom FRS
Sekundary target
Diamond or Plastic
Time-of-Flight (ΔE, x, y)
CsIDSSD DSSD
(E)(x, y)
Reminder: Detection principle
AGATA @ GSI meetingMay 4th 2010, Is
University of CologneAndreas Wendt
LYCCA-0 ΔE-E-hardware:12 DSSDs12x9 CsI (long/short)
University of YorkMike Bentley
Reminder: Detection principle
AGATA @ GSI meetingMay 4th 2010, Is
University of CologneAndreas Wendt
University of YorkMike Bentley
Double fragmentation reaction: 40Ca (420 MeV/u) + 9Be (4.0 g/cm2) → 37Ca (196 MeV/u ) + 9Be (0.7 g/cm2)
37Ca (85 %)2*103 p/sec
36K (10 %)
Selection by FRS Selection by CATE (Energy-loss/Energy)
Reminder: Detection principle
AGATA @ GSI meetingMay 4th 2010, Is
University of CologneAndreas Wendt
University of YorkMike Bentley
Mass Selection by Time-of-Flight and EnergySimulation: M.J.Taylor et al
(assumes 3m flight path and 50ps FWHM))
Expected performance: Mass identification (if ~50ps FWHM timing achieved)
• Mass separation up to A~70• Some mass information at A~100• Depends on specific case (needs simulation)
LYCCA chamber: • up to 72 KEL-Feethroughs• 32 SHV+Lemo-FT
Status: mechanics
Preparation and storage @ X7
Vacuum test @ cologne (5·10-5mbar)Feb. 2010
AGATA @ GSI meetingApril 30th 2010, GSI
Used as TKE-detector(for S272 @ S4)Mar./Apr. 2010
University of CologneAndreas Wendt
University of YorkMike Bentley
ΔE-detector status:
• 10 DSSDs ready!
• 8 @ Lund, awaiting bonding
[2 ΔE-detectors tested in-beam]
- 32 x 32 strips - Active area 58 x 58 mm² - Interstrip distance : 75 μm - thickness: 300 μm
12 ΔE-detector needed for LYCCA-0
Status: Silicon detectors
Ordering status:
• 18 DSSDs delivered • all T-boards delivered • connectors on-hand
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
„short“ crystals (13+7mm)• 2 E-Blocks assembled, tested• crystals for another 4 blocks available• mechanics for 12 E-Blocks available
„long“ crystals (33+7mm)• crystals for 13 E-Blocks on hand• 4 E-Blocks (used for S272) ready
40
.0
short
long
Status: CsI-scintillators
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
Status: Time-of-flight PLASTIC
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
Detector constructed for ToF-stop- New one being constructed for ToF-start• Stop-detector tested in-beam (GSI)• 300 MeV/u 58Ni
Robert Hoischen et al (Lund/GSI)
SC42 180ps FWHM
Plastic ToF 40ps FWHM
Status: Time-of-flight DIAMOND
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
Start-detector: 9 x PC 2x2cm wafers (4 strips)• 36 detector segments• Prototype wafers fabricated and tested• 5 wafers will be put in detector in June/July 2010• Fast DBAIV current pre-amps + V1290 TDC
First tests TEXAS A&M March/April 2010• ~35MeV/u 40Ar beam• ~20 MeV/u 20Ne beam
Status: Time-of-flight DIAMOND
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
Best achieved ~90ps FWHM
~20 MeV/u 20Ne beam
20Ne 16OBUT• …problems with detector reliability (HV breakdown, PCB?) • …and fabrication consistency.
~35MeV/u 40Ar beam
Best ~90ps FWHM
Time-of-flight for AGATA
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
Secondary target
Plastic
Time-of-Flight (ΔE, x, y)
CsIDSSD DSSD
(E)(x, y)
Diamond Plastic
Two options:• Diamond start AT TARGET (~70ps FWHM required) and Plastic stop (50ps ideal)OR.. • Plastic start UPSTREAM OF TARGET (~50ps FWHM required) and Plastic stop (50ps ideal)
THESE will be tested in June/July 2010
200 MeV:• 18 available
4 GeV:• prototype tested• 22 available
LYCCA-0: DSSD 384ch + CsI 108ch
→ 12 + 4 PreAmps
16ch 9ch
9ch 9ch 9ch
9ch 9ch 9ch
9ch
9ch
9ch
9ch9ch
16ch
16ch16ch
16ch
16ch
16ch
16ch
64ch
64ch
64ch
64ch
Status: Electronics
9ch
9ch
64ch+9ch
9ch
LYCCA for S272: DSSD 64ch + CsI 36ch
→ 2 + 2 PreAmps
(x2 / x4 join-board)32ch - CSP
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
FWHM: 41 keV @ 5484 keV~ 0,75 % (241Am) 6 cm
Test results: DSSD off-beam
Test chamber
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
Test results: LYCCA @ S272
AGATA @ GSI meetingApril 30th 2010, GSI
LE 3 LE 4
LE 1LE 2
DSSD
Top-left: Hit pattern DSSDTop-right: HP of DSSD, if LE2(4) is hit Bottom-left: HP of DSSD, if LE2(5) is hitBottom-right: HP of CsI-crystals
total
6 7 8
3 4 5
0 1 2
Labeling of crystals
University of CologneAndreas Wendt
University of YorkMike Bentley
Test results: LYCCA @ S272
AGATA @ GSI meetingApril 30th 2010, GSI
ΔE(Σ p-side)
TKE (Σ LE2)
Not calibrated yet
Gen.
ΔE (p2)
TKE (LE2(6))
University of CologneAndreas Wendt
University of YorkMike Bentley
Jun./July 2010 Sep. 2010
Timeline
Mar./Apr. 2010
LYCCA-0Comissioning
Pre
Sp
ec I
@ F
RS
LYCCA-00@ S272
AGATA @ GSI meetingApril 30th 2010, GSI
Photomontage: view on LYCCA-0
University of CologneAndreas Wendt
University of YorkMike Bentley
LYCCA Simulations
AGATA @ GSI meetingApril 30th 2010, GSI
University of CologneAndreas Wendt
University of YorkMike Bentley
NIM A 606 (2009) 589-597
LYCCA-0 Simulations• Full MOCADI event generator (realistic beam and reaction profile)• Full implementation of LYCCA-0 detectors• Time-of-flight options (both) now included• Variable parameters (resolutions, flight path etc)
VISIT:
LYCCA page at Lund University
(type “LYCCA” in Google) !!
University of CologneAndreas Wendt
LYCCA-Collaboration
AGATA @ GSI meetingApril 30th 2010, GSI
P. Reiter, A. Wendt, C. Goergen, G. Pascovici, J. Taprogge, S. Thiel
University of Cologne
D. Rudolph, P. Golubev, R. Hoischen Lund University
M. A. Bentley, M. Taylor, B.S.Nara Singh, S.P. Fox
University of York
J. Gerl, GSI PreSpec Collaboration
NUSTAR Simulation group