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Published byTheresa Alyson Foster Modified over 9 years ago
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3/14/2007AD/Instrumentation Department Jim Zagel 1 MFW Update 3/14/07 Latest problems RFT Looses Phase Lock –Real 53 MHz connected to the RFT at MI-10 on Feb 20, 2007. Needed to retime gates to BS Clock –Which had been done over the next few days –BUT…
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3/14/2007AD/Instrumentation Department Jim Zagel 2 MFW Problem: P-Bar Injection First of 4 bunches is larger than the other 3.
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3/14/2007AD/Instrumentation Department Jim Zagel 3 P-Bars to RR Huge P-Bar Bunches are transferred from the Accumulator into the Recycler ring.
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3/14/2007AD/Instrumentation Department Jim Zagel 4 Integrator Hold Time Integrator “Hold Time” from data valid was 200ns –Only 25ns is required for the Comet Digitizers. We reduced the Hold time to 100ns.
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3/14/2007AD/Instrumentation Department Jim Zagel 5 P-Bars RR to Tev
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3/14/2007AD/Instrumentation Department Jim Zagel 6 Retimed Acc to RR
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3/14/2007AD/Instrumentation Department Jim Zagel 7 New Problems
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3/14/2007AD/Instrumentation Department Jim Zagel 8 Oops! Apparently 2MHz digitizers really have a hard time digitizing at a 2.5MHz rate Recall we have 4 bunches separated by 400ns. We replaced the horizontal 2MHZ Comet with a borrowed 5MHz board.
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3/14/2007AD/Instrumentation Department Jim Zagel 9 New Horizontal 5MHz Comet
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3/14/2007AD/Instrumentation Department Jim Zagel 10 MFW So Far Have re-timed both wires. Need to replace the Vertical 2MHz Comet with 5Mhz board. Need to check flies on next Tev shot –Set appropriate voltages to eliminate saturation.
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3/14/2007AD/Instrumentation Department Jim Zagel 11 Test Loss Monitor at A0 Update
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3/14/2007AD/Instrumentation Department Jim Zagel 12 Pulsed LED Signal
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3/14/2007AD/Instrumentation Department Jim Zagel 13 A0 Loss Monitor Test
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3/14/2007AD/Instrumentation Department Jim Zagel 14 36 bunches in Tev Unfortunately the PMT is not Powered
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3/14/2007AD/Instrumentation Department Jim Zagel 15 Support For new Wire at A0 Need –New Cables to Tunnel –New Computer –New VME Chassis –New Motor Control Hardware –PMT Power Supply Software –Minor modifications to generic FW code –Database Changes
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