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biac:scanners
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biac:scanners [2013/03/06 16:19] diaz [GE MR750 3T Scanner (BIAC5 & BIAC6)] |
biac:scanners [2013/12/17 01:45] cmp12 [GE MR750 3T Scanner (BIAC5 & BIAC6)] |
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| Actual measurements of the fringe field on 10/14/2009 were as follows: 5 gauss line 4 inches toward the magnet from the window. The field at the projector is 8 gauss; the field at the corner of the cabinet closest to the magnet is 25 gauss, and the field at the end of the table is 15 gauss. | Actual measurements of the fringe field on 10/14/2009 were as follows: 5 gauss line 4 inches toward the magnet from the window. The field at the projector is 8 gauss; the field at the corner of the cabinet closest to the magnet is 25 gauss, and the field at the end of the table is 15 gauss. | ||
| - | The current software platform on BIAC5 is 20x (8/27/10). | + | The current software platform on BIAC5 is 23x (12/1/13). |
| The current software platform on BIAC6 is 23x (3/6/13). | The current software platform on BIAC6 is 23x (3/6/13). | ||
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| In addition to BIAC's QA procedures, GE also runs a quality control program every month called ibis. This program monitors, and adjusts if necessary X, Y, and Z gradient shimming (LVshim). The GE system performance tests checks and logs stability and SNR data on the scanner, which can be recalled from the scanner' | In addition to BIAC's QA procedures, GE also runs a quality control program every month called ibis. This program monitors, and adjusts if necessary X, Y, and Z gradient shimming (LVshim). The GE system performance tests checks and logs stability and SNR data on the scanner, which can be recalled from the scanner' | ||
| - | Finally, for every scanning session, BIAC collects data on the SNR, SFNR, standard deviation, drift, mean signal, first time point of data (t1), and provides plots of signal stability in the X, Y , and Z planes (plot). These data are available to investigators immediately after the data has been collected and reconstructed. These can be found by logging into the BIAC Exam Tracker here: http://fourier.biac.duke.edu/ | + | Finally, for every scanning session, BIAC collects data on the SNR, SFNR, standard deviation, drift, mean signal, first time point of data (t1), and provides plots of signal stability in the X, Y , and Z planes (plot). These data are available to investigators immediately after the data has been collected and reconstructed. These can be found by logging into the BIAC Exam Tracker here: http://shadow.biac.duke.edu/ |
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| ==== Cluster ==== | ==== Cluster ==== | ||
| - | BIAC's new Linux cluster has 61 nodes with a total of 456 Intel Xeon processor cores and 1.75 TB of memory. The cluster is based on Centos 5.4 and is running the Sun Grid Engine for job scheduling. BIAC maintains a large library of commercial and custom software for functional and structural MRI analysis, for the analysis of MR spectroscopy data, and for fiber tractography from DTIs. Available processing and analysis software include current releases of FSL, freesurfer, matlab (with: BIAC's matlab tools, spm8, ArtRepair), support vector libraries (liblinear, libsvm) , python tools (python-mvpa, | + | BIAC's new Linux cluster has 51 nodes with a total of 456 Intel Xeon processor cores and 1.75 TB of memory. The cluster is based on Scientific Linux 6.4 and is running the Sun Grid Engine for job scheduling. BIAC maintains a large library of commercial and custom software for functional and structural MRI analysis, for the analysis of MR spectroscopy data, and for fiber tractography from DTIs. Available processing and analysis software include current releases of FSL, freesurfer, matlab (with: BIAC's matlab tools, spm8, ArtRepair), support vector libraries (liblinear, libsvm) , python tools (python-mvpa, |
| - | Centralized data storage is provided by a BlueArc Titan 2500 enterprise-class storage server with Fibre Channel disk arrays and dual 10 Gigabit Ethernet connections. The Titan is supplemented by several HP ProLiant and Western Scientific FusionSA servers. Total storage capacity is 61 TB. Automated processes move the image data directly from the scanners and organize the data into a hierarchy on the storage servers. For archiving and backing up data, BIAC has a Qualstar RLS-4470 tape robot equipped with dual AIT-5 drives, 70 slots, and 28 TB native capacity. The central computation and storage systems can be accessed from the campus network, or from two data analysis laboratories located within the BIAC and available to all users. | + | Centralized data storage is provided by a BlueArc Titan 2500 enterprise-class storage server with Fibre Channel disk arrays and dual 10 Gigabit Ethernet connections. The Titan is supplemented by several HP ProLiant and Western Scientific FusionSA servers. Total storage capacity is 120 TB. Automated processes move the image data directly from the scanners and organize the data into a hierarchy on the storage servers. For archiving and backing up data, BIAC has a Qualstar RLS-4470 tape robot equipped with dual AIT-5 drives, 70 slots, and 28 TB native capacity. The central computation and storage systems can be accessed from the campus network, or from two data analysis laboratories located within the BIAC and available to all users. |
biac/scanners.txt · Last modified: 2023/02/23 18:43 (external edit)
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