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start [2020/10/31 08:20] pereira [The NSCL S800 spectrograph] |
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| ====== The NSCL S800 spectrograph ====== | ====== The NSCL S800 spectrograph ====== | ||
| - | Welcome to the wiki page of the NSCL S800 spectrograph. The page provides technical information about the S800, as well as instructions to operate the S800 prior to and during an experiment. | + | Welcome to the wiki page of the NSCL S800 Spectrograph and S3 vault. The page provides technical information about the S800, instructions to operate the S800 prior to and during an experiment, and some general maintenance information of the S800 and S3 vault. Support of the S800 is provided by Jorge Pereira ([[pereira@nscl.msu.edu]], |
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| + | All users of this site are personally responsible for full compliance with the export control regulations of the United States and/or any other jurisdiction of which they may be resident. | ||
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| + | For questions related to this Wiki document, please contact | ||
| ===== Technical Aspects of the S800 ===== | ===== Technical Aspects of the S800 ===== | ||
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| * [[Modes of Operation]] | * [[Modes of Operation]] | ||
| * [[Determination of Angles and Momentum]] | * [[Determination of Angles and Momentum]] | ||
| + | * [[Determination of Angles and Momentum# | ||
| * [[Detectors]] | * [[Detectors]] | ||
| * [[Electronics]] | * [[Electronics]] | ||
| * [[Data Acquisition (DAQ)]] | * [[Data Acquisition (DAQ)]] | ||
| - | * [[S800 | + | * [[S800 |
| * Coupled Devices | * Coupled Devices | ||
| * [[Types of Experiments]] | * [[Types of Experiments]] | ||
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| ===== Operation of the S800 ===== | ===== Operation of the S800 ===== | ||
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| * [[During experiments]] | * [[During experiments]] | ||
| * [[Division of operation responsibilities]] | * [[Division of operation responsibilities]] | ||
| + | * [[Venting/ | ||
| + | * [[Radiation safety in the S3 vault|Accessing and securing the S3 vault]] | ||
| + | * [[General documentation S3 vault|Documentation S3 vault]] | ||
| + | * [[Troubleshooting]] | ||
| + | * [[Emergency Shutdown]] | ||
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| - | A double peak structure will appear in the TDC for the S800 trigger between the coincidence events and the singles events; the groups are separated by 25 ns because of the delay introduced by the downscaler used for the singles | ||
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| - | Followup | ||
| - | Before leaving beam with experimenters | ||
| - | Set up current trip points on Linux HV controls | ||
| - | Values used for K-48 | ||
| - | 5 for CRDC and Ion Chamber anodes and intermediate image ppacs | ||
| - | 50 for CRDC drifts | ||
| - | 80 for IC drift | ||
| - | Ensure alarms are running | ||
| - | Make sure Linux HV GUI alarms are enabled | ||
| - | Make sure threshold on isobutane level is set up (not currently connected to alarms because they give too many false alarms when communication is lost) | ||
| - | All logs are being recorded | ||
| - | There is no log file for biases controlled by Labview | ||
| - | Linux HV | ||
| - | LabView gas handling system | ||
| - | Note in logbook | ||
| - | Scintillator biases | ||
| - | IC gate biases | ||
| - | Post reference printouts for experimenters | ||
| - | HV status: | ||
| - | Gas handling system status: | ||
| - | Create window configuration with summing regions to make it easier for experimenters to track efficiency/ | ||
| - | Setting up coincidences for additional reaction settings in an experiment | ||
| - | Do not need to redo coincidence settup if secondary beam does not change | ||
| - | Might need to redo coincidence setup if secondary beam changes drastically | ||
| - | To watch during experiment | ||
| - | Look for isobutene running out – messes up data over several hours | ||
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| - | Experimenters responsibilities | ||
| - | Implementing dE- or TOF-based corrections is part of EXR | ||
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| - | More detail needed | ||
| - | Minimum rates required for coincidence setup | ||
| - | Selection of appropriate substitute reactions for coincidence setup | ||
| - | How to feel comfortable that there will not be a problem with FP detector gases running out | ||
| - | Starting alarms | ||
| - | Starting logging | ||
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| - | Not covered | ||
| - | Details of mask calibration | ||
| - | Details on implementing dE- and TOF-based corrections | ||
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| - | Index | ||
| - | Introduction | ||
| - | Experiment Types | ||
| - | Experiment planning | ||
| - | NMR | ||
| - | Operations software (Barney, QTChan, BLkq...) | ||
| - | Tracking setup | ||
| - | Device Tunning | ||
| - | Mask calibration | ||
| - | Beam blocker use | ||
| - | Setting optimization (tweaks) | ||
| - | Electronics | ||
| - | DAQ | ||
| - | Analysis | ||
| - | Operation Environment System Overview | ||
| - | Dump Switches | ||
| - | Experiment preparation (S800 checklist prior to experiment) | ||
| - | Login strategy | ||
| - | Detectors (TPPACs, CRDCs, IC, OBJ_SCI, S800_SCI, Hodoscope) | ||
| - | Overview | ||
| - | HV | ||
| - | Gas Handling system | ||
| - | Vacuum control | ||
| - | Special considerations for each detector | ||
| - | Shimming OBJ | ||
| - | Replacing OBJ | ||
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| - | Advance preparations | ||
start.txt · Last modified: 2024/01/02 12:45 by pereira
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