CSEE Electronics Electronics Radiation Tests with Protons CBM COSY Beam Test in June/July 2013 Overview Presentation Sven Löchner GSI Darmstadt EE-Meeting July 29th, 2013
CSEE Electronics
Electronics Radiation Tests with ProtonsCBM COSY Beam Test in June/July 2013
Overview Presentation
Sven LöchnerGSI Darmstadt
EE-MeetingJuly 29th, 2013
July 29th, 2013 EE-Meeting 2CSEE Electronics
Beam ParameterBeam Parameter• Location: FZ Jülich / COSY / JESSICA cave• Beam:
– ~ 2 GeV protons– between 1.5 and 3.0 · 108 protons per second– beam diameter ~1cm (~3mm sigma)– beam on target: 7s, spill repetition rate: 22 s
• Beam time:– 24. June to 4. July 2013– in reality, beam on target: 2.-4. July
• Participants: – IRI Frankfurt– GSI Darmstadt
• On-Site:– J. Frühauf, S. Löchner, S. Manz,
M. Witthaus
July 29th, 2013 EE-Meeting 3CSEE Electronics
Experimental Setup Experimental Setup -- OverviewOverview
Beam
GSI Darmstadt(CBM, CSEE)
IRI Frankfurt GSI Darmstadt(CSEE, LOBI)
July 29th, 2013 EE-Meeting 4CSEE Electronics
Experimental Setup Experimental Setup –– GSI 1GSI 1
Beam
IonisationChamber
PADI LTC3610 LTC 3605Power Regulator QFWGET4 µ-ctrl
July 29th, 2013 EE-Meeting 5CSEE Electronics
Experimental Setup Experimental Setup –– GSI 2GSI 2
Experimental Setup Control Devices (only for GSI)• 7 power supplies
– 11 channels– 9 channels remotely
controlled• 1 HV power supply
– 4 channels– voltage controlled
via Lemo cable• 3 PCs• 1 remote controlled
power outlet• 1 network switch
(20 channels)
July 29th, 2013 EE-Meeting 6CSEE Electronics
Experimental Setup Experimental Setup –– GSI 3aGSI 3a
Experimental Setup Ctrl.1. “Planned” Version
– Spartan FPGA– operates IC, pre-biasing– results to PC
2. Test of power regulators16 channel ADC
3. Status control of ASICs– GET4: 6 DLL ctrl. voltag.– PADI: 4 voltages
4. QFW (in beam) control5. µ-controllers monitoring
1.
2.
3.
4.
5.
July 29th, 2013 EE-Meeting 7CSEE Electronics
Experimental Setup Experimental Setup –– GSI 3bGSI 3b
Experimental Setup Ctrl.
Setup is locateddirect under theexperimental setup(cable length from0.5m to 1m)
SpartanFPGA
AdapterBoard
16 channelADC
QFW (for IC)
July 29th, 2013 EE-Meeting 8CSEE Electronics
ExperimentalExperimental Setup Setup –– ControlControlLabView ControlSetup
QFW control
DAC control
ADC results
Spill calculation
GET4 automatic error control
FPGA settings(PIC control, Beam
simulation, ...)
Histograms of different measurements
July 29th, 2013 EE-Meeting 9CSEE Electronics
Experimental Setup Experimental Setup –– GSI (LOBI)GSI (LOBI)
PGproto Testing Setup• SEM-Grid for beam profile measurements
– 2 x 31 channels– 2 HV planes– vertically displaceable
• PGproto readout system– 32 channels (8 QFW ASICs)– 1 FPGA logic unit
July 29th, 2013 EE-Meeting 10CSEE Electronics
Experimental Setup Experimental Setup –– IRIIRI
Test Setup from IRI• Hercules Rad-hard
µ-controller Board
• Syscore FPGA Boards– Programmed via
USB (~20m long cable to PC,located outside of cave)
Setup
July 29th, 2013 EE-Meeting 11CSEE Electronics
Passive Beam Diagnostic (I)Passive Beam Diagnostic (I)
Beam diagnostic via passive, self-developing film (GAFCHROMIC EBT)
• Sensitivity: 1cGy to 800cGyfrom calculation: 108 protons @ 2GeV deposit roughly 3cGy !!!
• Easy to mount, easy to check if DUT is “hit”
GET4 Setup PADI Setup
July 29th, 2013 EE-Meeting 12CSEE Electronics
Passive Beam Diagnostic (II)Passive Beam Diagnostic (II)
Further examples of film radiation:
Film of beam exit window Film at the end of our experimental setup
(3.66m after exit window film)
SEM-Grid
Ionisation Chamber
July 29th, 2013 EE-Meeting 13CSEE Electronics
Beam Diagnostic (I)Beam Diagnostic (I)
Ionizing Chamber(from GSI Detector-Lab Department)
• Biased with 1kV• Readout with QFW
ASIC
Typical COSY extraction beam profile in 2013
• 7s beam extraction• 15s break (for refill synchrotron)
0,0E+00
1,0E+07
2,0E+07
3,0E+07
4,0E+07
5,0E+07
6,0E+07
7,0E+07
0 2 4 6 8 10 12 14 16 18 20 22
Time (s)
Prot
ons
0,0E+00
5,0E+08
1,0E+09
1,5E+09
2,0E+09
2,5E+09
3,0E+09
0 2 4 6 8 10 12 14 16 18 20 22
Time (s)
Prot
ons
July 29th, 2013 EE-Meeting 14CSEE Electronics
Beam Diagnostic (II)Beam Diagnostic (II)Ionizing Chamber – Number of Protons per Event Number
0,0E+00
5,0E+08
1,0E+09
1,5E+09
2,0E+09
2,5E+09
3,0E+09
3,5E+09
4,0E+09
0 500 1000 1500 2000 2500 3000 3500 4000
Event Number
Pro
tons
per
spi
ll
1st night 2nd night
Beam interruption (safety reason or cave access)
July 29th, 2013 EE-Meeting 15CSEE Electronics
Beam Diagnostic (III) Beam Diagnostic (III) –– PGproto2PGproto2
SEM-Grid – x-Profile Overview
20 sTop view
July 29th, 2013 EE-Meeting 16CSEE Electronics
Beam Diagnostic (IV) Beam Diagnostic (IV) –– PGproto2PGproto2
SEM-Grid – x-Profile Overview
3D view from front
July 29th, 2013 EE-Meeting 17CSEE Electronics
Beam Diagnostic (V) Beam Diagnostic (V) –– PGproto2PGproto2
SEM-Grid – x-Profile Overview
3D view from side
July 29th, 2013 EE-Meeting 18CSEE Electronics
Beam Diagnostic (VI) Beam Diagnostic (VI) –– PGproto2PGproto2
SEM-Grid – x-Profile Overview
3D view from back
July 29th, 2013 EE-Meeting 19CSEE Electronics
First Results from CBM COSY 2013First Results from CBM COSY 2013
Finally 2 days with beam on target:• ≈ 3.88 · 1012 protons delivered from COSY• All diagnostic devices worked• GET4, PADI and QFW were located directly in beam
worked without any problems• Power regulator LTC 3610 survived without any obvious problems• Power regulator LTC 3605 “died” after nearly half of beam time
still looking for reason• Beam profile much better than in 2012• Measured first beam data with new PGproto2 system
More results and detailed analysis of data will upcoming in someweeks.
July 29th, 2013 EE-Meeting 20CSEE Electronics
Thanks to all...Thanks to all...