Spheres ------- These sphere data sets :cite:`singh:17` contains samples with varied volume fractions of borosilicate glass spheres encased in a polypropylene matrix :cite:`stannard_01:17`. The sphere diameter is a gaussian distribution ranging from 38-45 µm. The samples were scanned at both 25 mm and 60 mm sample to detector distance with the experimental conditions reported in the table below: +---------------------------------+------------------------------------+ | Instrument | APS 2-BM-A fast tomo | +---------------------------------+------------------------------------+ | Energy | 27.4 keV | +---------------------------------+------------------------------------+ | Monochromator | multi-layer | +---------------------------------+------------------------------------+ | Scan Range | 180 degree | +---------------------------------+------------------------------------+ | Number of Projections | 1500 | +---------------------------------+------------------------------------+ | White Fields | 10 before | +---------------------------------+------------------------------------+ | Dark Fields | 10 before | +---------------------------------+------------------------------------+ | Mode | fly-scan | +---------------------------------+------------------------------------+ | Rotation Speed | 0.75 deg/s | +---------------------------------+------------------------------------+ | Sample Detector Distance | 60 mm | +---------------------------------+------------------------------------+ | Attenuator | mm C + 1mm Glass | +---------------------------------+------------------------------------+ | Detector Name | PCO edge | +---------------------------------+------------------------------------+ | Exposure Time | 0.0001 s | +---------------------------------+------------------------------------+ | Pixel Size | 0.65 µm | +---------------------------------+------------------------------------+ | Detector shutter mode | global | +---------------------------------+------------------------------------+ | Detector Dimension x | 2560 | +---------------------------------+------------------------------------+ | Detector Dimension y | 2160 | +---------------------------------+------------------------------------+ | Objective Magnification | Mitutoyo 10x | +---------------------------------+------------------------------------+ | Scintillator | LuAG 10 µm | +---------------------------------+------------------------------------+ The sphere data sets includes 6 tomographic data sets collected at different sample to detector distance and different concentrations as reported in the table below: To load the data sets and perform a basic reconstruction using `tomopy `_ :: tomopy recon --file-name tomo_00058.h5 --rotation-axis 1427 tomopy recon --file-name tomo_00059.h5 --rotation-axis 1440 tomopy recon --file-name tomo_00060.h5 --rotation-axis 1337 tomopy recon --file-name tomo_00061.h5 --rotation-axis 1316.5 tomopy recon --file-name tomo_00062.h5 --rotation-axis 1359.5 tomopy recon --file-name tomo_00063.h5 --rotation-axis 1322,5 To enable phase retrieval un-comment the appropriate setting in :download:`tomopy_rec.py <../../demo/tomopy_rec.py>` .. _tomo_00058: https://app.globus.org/file-manager?origin_id=9f00a780-4aee-42a7-b7f4-6a2773c8da30&origin_path=%2F%2Ftomo_00058_to_00063%2F .. _tomo_00059: https://app.globus.org/file-manager?origin_id=9f00a780-4aee-42a7-b7f4-6a2773c8da30&origin_path=%2F%2Ftomo_00058_to_00063%2F .. _tomo_00060: https://app.globus.org/file-manager?origin_id=9f00a780-4aee-42a7-b7f4-6a2773c8da30&origin_path=%2F%2Ftomo_00058_to_00063%2F .. _tomo_00061: https://app.globus.org/file-manager?origin_id=9f00a780-4aee-42a7-b7f4-6a2773c8da30&origin_path=%2F%2Ftomo_00058_to_00063%2F .. _tomo_00062: https://app.globus.org/file-manager?origin_id=9f00a780-4aee-42a7-b7f4-6a2773c8da30&origin_path=%2F%2Ftomo_00058_to_00063%2F .. _tomo_00063: https://app.globus.org/file-manager?origin_id=9f00a780-4aee-42a7-b7f4-6a2773c8da30&origin_path=%2F%2Ftomo_00058_to_00063%2F .. |00058| image:: ../img/tomo_00058.png :width: 20pt :height: 20pt .. |00059| image:: ../img/tomo_00059.png :width: 20pt :height: 20pt .. |00060| image:: ../img/tomo_00060.png :width: 20pt :height: 20pt .. |00061| image:: ../img/tomo_00061.png :width: 20pt :height: 20pt .. |00062| image:: ../img/tomo_00062.png :width: 20pt :height: 20pt .. |00063| image:: ../img/tomo_00063.png :width: 20pt :height: 20pt +-------------+-----------------------+----------+--------------+-----------+--------------+ | Tomo ID | Concentration (%) | Distance | Sample Name | Image | Axis | +-------------+-----------------------+----------+--------------+-----------+--------------+ | tomo_00058_ | 20 | 60 | Somya_20_60 | |00058| | 1427 | +-------------+-----------------------+----------+--------------+-----------+--------------+ | tomo_00059_ | 30 | 60 | Somya_30_60 | |00059| | 1440 | +-------------+-----------------------+----------+--------------+-----------+--------------+ | tomo_00060_ | 30 | 25 | Somya_30_25 | |00060| | 1337 | +-------------+-----------------------+----------+--------------+-----------+--------------+ | tomo_00061_ | 20 | 25 | Somya_20_25 | |00061| | 1316.5 | +-------------+-----------------------+----------+--------------+-----------+--------------+ | tomo_00062_ | 10 | 25 | Somya_10_25 | |00062| | 1359.5 | +-------------+-----------------------+----------+--------------+-----------+--------------+ | tomo_00063_ | 5 | 25 | Somya_5_25 | |00063| | 1322.5 | +-------------+-----------------------+----------+--------------+-----------+--------------+