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Diagnostics & Instrumentation. Om Singh - Group Leader 8 th ASAC Meeting for NSLS-II Project May 10-11, 2011. Outline. Injector Diagnostics - update Storage Ring Diagnostics – update Installation schedule RF BPM Electronics - status Summary. NSLS-II Diagnostics Systems.
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Diagnostics & Instrumentation Om Singh - Group Leader 8th ASAC Meeting for NSLS-II Project May 10-11, 2011
Outline Injector Diagnostics - update Storage Ring Diagnostics – update Installation schedule RF BPM Electronics - status Summary
NSLS-II Diagnostics Systems Status update
Diagnostics for LTB -1 Commissioning Installed but sees no beam Safety Shutter FCT BPM ICT Faraday Cup BPM Flag Flag Flag Faraday Cup R. Fliller Flag Flag Flag
Transport Line Flags (by RadiaBeam) D. Padrazo
Diagnostics Schedule In Linac Vault In Booster tunnel In SR tunnel
Diagnostics in ID straight sections - 1 DCCT C03 HXN BPMs (w/ High stability stands) BbB FDBK C29 6.6 m C16 Pingers Tune Monitor C22 9.3 m Kosciuk, Tanabe, Hseush, Hetzel
Diagnostics in ID straight sections - 2 C05 SRX - Canted BPMs C11 CHX BPMs (w/ High stability stands) C23 CSX - Canted BPMs (w/ small aperture buttons) 6.6 m 9.3 m C10 IXS BPMs (w/ High stabilty stands) C28 XPD BPMs (w small aperture buttons) Kosciuk, Tanabe, Hseush, Hetzel
SR Girder BPM - PTC
RF BPM Electronics - Status • Development & prototype – • Held a BPM design review with favorable comments – August, 2010 • Hardware issue resolved – no drop out; reduced level of power supply noise • Processing gain improved – w/ upgraded PLL design & coherent DSP processing • Tested AFE-Spin2 with hardware fixes at ALS – 1/2011 • Tested Virtex-6 transitional platform at ALS to validate software – 3/2011 • Prototyped & tested Pilot Tone Coupler (PTC) & Chassis – 3/11 • Upgrade DFE from Virtex-5 to Virtex-6 FPGA – prototype test ongoing - 5/2011 • Test with AFE-Spin3 completed w full functionality – 5/2011 • Pre-production run (qty=15) – • Chassis & PTC order placed – receive & test 6/2011 • AFE & DFE order in progress – receive & test 7/2011 • Production run – • Start procurement for injector (qty=60) – 7/2011 • Start procurement for SR (qty=220) – 10/2011
Virtex-6 DFE – Status 2Gbyte DDR3 Memory Virtex-6 LX240T FPGA • New DFE board is working. • Newer Virtex-6 FPGA • Larger and cheaper FPGA compared to previous Virtex-5 based board. • Permits more room for Digital Signal Processing algorithms • Faster DDR-3 improves performance of MicroBlaze soft-core processor. • 4 boards received on 4/28/2011 • 90% tested. All major components working. (status as of 5/4/2011) • DDR-3 operating at 800Mbits/s • High speed serial links operating at 5Gbit/s • Gigabit Ethernet & FLASH memory working • Interface to AFE working. • 6 more boards expected on 5/18/2011 6 SFP Slots Gigabit Ethernet RS-232 1Gbyte FLASH Memory J. Mead & K. Ha
RF BPM Electronics set up – Quantify BPM resolution Chassis M. Maggipinto B. Bacha AFE – Spin3 DFE – Virtex 6 PTC Synch clocks – Rev clock, ADC clock and RF clock
BPM Electronics bench test – preliminary results (5/4/2011) • Sig gen (~500 MHz) to 1-4 splitter; Splitter output to BPM button inputs • Synch clocks – Rev clock = ~378 kHz; ADC clock= ~117 MHz • Collected 1 M samples of ADC data points; processed with moving filters TBT BPM resolution exceeds goals Y 2 kHz X 200 Hz K. Vetter
BPM thermal drift test • Stability data taken during an overnight 11hr period in a thermally stable rack (0.1 deg C) • The RMS variation is 0.233 µm and 0.289 µm for X and Y respectively. • However, stability goals are 0.3 µm and 0.2 µm. • In-band pilot tone technique (next slide) will be used to meet stability goals. A. DellaPenna
In band pilot tone technique - plan • Software development in progress to implement pilot tone based slow drift compensation • Injected pilot tone between 2nd and 3rd high-side revolution lines at ALS (2-Cam fill) • Measurement show pilot tone band along with revolution lines K. Vetter
NSLS-II BPM test results w/ ALS Beam – (single bunch) • Test Set-up • One SR Button to 1-4 splitter • Splitter output to NSLS-II BPM • Single bunch I=23mA (15 nC) ADC sampled data One turn • Single bunch resolution • x = 9.64 microns • y = 10.3 microns • Meets NSLS-II goals
NSLS-II BPM test results w/ ALS Beam – (multi-bunch) ADC sampled data • Test Set-up • One SR Button to 1-4 splitter • Splitter output to NSLS-II BPM • Multi bunch I= 500mA • Multi-bunch TBT resolution • x = 1.54 microns • y = 1.62 microns • Meets NSLS-II goals
NSLS-II BPM test results w/ ALS Beam TBT 2 kHz 200 Hz
RF BPM Electronics - Schedule Inj & SR Injector SR After 8 wks in procurement & 12-wks lag for manufacturing startup, BPM’s are fed in groups of (8) units into test cycle. All BPM’s installed and tested 2 mo prior to start of commissioning All production run duration expected to be shorter
Visible SLM Optics Room Layout Weixing, Fernandes
Loss Control & Monitor (LCM) Sub-systems 2m long x 25cm OD Glass Rod Installation in Dipole Kramer, Cameron Inj Section
SUMMARY • Diagnostics systems are in procurement stage or advanced final design stage • Installation, system integration and commissioning schedule have been optimized • Injector & SR diagnostics installation is on schedule for machine commissioning • RF BPM Electronics • In-house design completed for AFE, DFE, PTC & Chassis • Pre-production – to complete in 6/2011 • Production for injector & SR on schedule – 7/1/11 & 10/1/11
Acknowledgment B. Bacha, A. Blednykh, A. Borrelli, P. Cameron, W. Cheng, L.B. Dalesio, J. De Long, P. Ilinski, A.J. Della Penna, L. Doom, M. Ferreira, H. Fernandes, R. Fliller, G. Ganetis, W. Guo, K. Ha, R. Heese, H-C Hseuh, Y. Hu, M. Hussain, E.D. Johnson, B.N. Kosciuk, S.L. Kramer, S. Krinsky, R. Lynch, M. Lucas, M. Maggipinto, J. Malley, J. Mead, A. Munoz, S. Orban, D. Padrazo, I. Pinayev, J. Ricciardelli, J. Rubino, G. Shen, S. Sharma, J. Skaritka, C. Spataro, T. Tanabe, Y. Tian, K. Vetter, W. Wilds, F.J. Willeke, L-H Yu
Transport Line Diagnostic systems Faraday Cup Energy Slit
Mitigation of Resonance Modes in Multipole Chamber – RF Shields Flexible BeCu RF fingers with 50% of opening space Resonance modes With no rf shield • S2 & S4 shifts modes to > 800 MHz 500 MHz S2 S4 S6 • S6 upstream shifts modes to > 800 MHz • S6 downstream does not shift out of band • but can optimize modes location Blednykh; Ferreira Hseuh; Kosciuk
SR RF BPM resolution requirement – Stored beam *ID straight section RF BPM requirements to be better
SR BPMs and Correctors 2 1 BPMs 2 3 1 3 4 6 5 SC SC FC FC SC FC SC • Slow correctors (Qty=6) • Slow response – 2 Hz • Strong strength – 800 μrad • Utilized for – • Alignment • Slow orbit feedback SC SC • Fast correctors (Qty=3) • Fast response – 2 kHz • Weak strength – 15 μrad • Utilized for – • Fast orbit feedback 156 mm slow 100 mm slow 30 mm fast (air core)
Diagnostics Beamlines • Two X-ray synchrotron imaging beamlines with PH camera & CR lenses • 1st BM source point in Cell 22 – to measure emittance • 3PW source point in Cell 22 – to measure energy spread • All optical components are inside tunnel • One Visible synchrotron imaging beamline • 2nd BM source point in Cell 30 – to measure temporal and spatial beam properties • Location (just downstream of injection straight) - ideal to assist injector tuning • A shed for experimental optical table located just outside ratchet wall • Design review held in July, 2010 • Comment – “Proposed design for all beamlines is effective to meet all critical goals for both commissioning and long-term success of the facility” • Status • Final design of beam line components in last stage; followed with procurement for optical components