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MOPF03 | NSLSII Photon Beam Position Monitor ElectronicsTesting and Results | electronics, detector, photon, controls | 42 |
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Simulated and real beam data has been taken using the new NSLSII Photon BPM electronics. The electrometer design can measure currents as low as 10’s of nanoamps and has an ability to measure a current as high as 300mA. The 4 channel design allows for internal calibration and has both a Negative and Positive bias ability. Preliminary bench testing results has shown excellent resolution. | |||
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MOPF08 | Beam Profile Measurements in the RHIC Electron Lens using a Pinhole Detector and YAG Screen | electron, controls, detector, timing | 59 |
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Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy The electron lenses installed in RHIC are equipped with two independent transverse beam profiling systems, namely the Pinhole Detector and YAG screen. A small Faraday cup, with a 0.2mm pinhole mask, intercepts the electron beam while a pre-programmed routine automatically raster scans the beam across the detector face. The collected charge is integrated, digitized and stored in an image type data file that represents the electron beam density. This plungeable detector shares space in the vacuum chamber with a plunging YAG:Ce crystal coated with aluminum. A view port at the downstream extremity of the Collector allows a GigE camera, fitted with a zoom lens, to image the crystal and digitize the profile of a beam pulse. Custom beam profiling software has been written to import both beam image files (pinhole and YAG) and fully characterize the transverse beam profile. The results of these profile measurements are presented here along with a description of the system and operational features. * W. Fischer, et al, "… head-on beam-beam compensation in RHIC", ICFA (BB3013), CERN (2013). **T. Miller, et al, “… eLens pin-hole detector and YAG…“, BIW2012, Newport News, VA, TUPG039 |
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Poster MOPF08 [6.731 MB] | ||
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MOPD23 | Development Status of SINAP Timing System | timing, FPGA, network, PLC | 199 |
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After successful implementation of SINAP timing solution at Pohang Light Source in 2011, we started to upgrade SINAP timing system to version 2. The hardware of SINAP v2 timing system is based on Virtex-6 FPGA chip, and bidirectional event frame transfer is realized in a 2.5Gbps fiber-optic network. In event frame, data transfer functionality substitutes for distributed bus. The structure of timing system is also modified, where a new versatile EVO could be configured as EVG, FANOUT or EVR with optical outputs. Besides standard VME modules, we designed PLC-EVR as well, which is compatible with Yokogawa F3RP61 series. Based on brand new hardware architecture, the jitter performance of SINAP v2 timing system is improved remarkably. | |||
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Poster MOPD23 [4.282 MB] | ||
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TUPF19 | Beam Position Monitor Electronics Upgrade for Fermilab Switchyard | detector, proton, extraction, interface | 365 |
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Funding: This work was supported by the U.S. Department of Energy under contract No. DE-AC02-07CH11359 The beam position monitor (BPM) system for Fermilab Switchyard (SY) provides the position, intensity and integrated intensity of the 53.10348MHz RF bunched resonant extracted beam from the Main Injector over 4 seconds of spill. The total beam intensity varies from 1x1011 to 1x1013 protons. The spill is measured by stripline beam postion monitors and resonant circuit. The BPMs have an external resonant circuit tuned to 53.10348MHz. The corresponding voltage signal out of the BPM has been estimated to be between -110dBm and -80dBm. |
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Poster TUPF19 [5.622 MB] | ||
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TUPD11 | LANSCE 1L Harp Data Acquisition System Upgrade | data-acquisition, FPGA, electron, hardware | 438 |
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The 1L harp is the last beam diagnostic preceding LANSCE’s 1L Target, the neutron source of LANSCE’s Lujan Center, and consists of two orthogonal planes of stationary sense wires for monitoring the beam distribution prior to its arrival at the target. A new data acquisition system has been developed for the 1L harp that features a National Instruments CompactRIO contained within a BiRIO chassis hosting electronic circuits for signal conditioning and a new feature for sense wire integrity monitoring. Hardware design, software architecture, and preliminary data acquisition results will be described. | |||
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