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JEM-X Gain Calibration

JEM-X Gain Calibration. Xe line analysis and IC tables Carol Anne Oxborrow. ISDC Gain History Table. Gain Correction. Xe line position: Good examples. Xe line position: Not-so-good examples. Non-linear Effect. IC tables vs. non-corrected GainHistory tables.

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JEM-X Gain Calibration

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  1. JEM-X Gain Calibration Xe line analysis and IC tables Carol Anne Oxborrow

  2. ISDC Gain History Table

  3. Gain Correction

  4. Xe line position: Good examples

  5. Xe line position: Not-so-good examples

  6. Non-linear Effect

  7. IC tables vs. non-corrected GainHistory tables

  8. Bad Things Made Good with IC Tables • Poor gain smoothing in j_cor_gain • very rare with v8.03 • Heavily grey-filtered gain history tables • Zeros produced by j_calib_gain_fitting • Happens with strong sources especially SCO X-1 and Crab • Generally low Xe level • due to high gain and temperature dependence • Due to microstrip plate aging • Continues to increase with age • Non-linear gain effect • Due to varying temperature/gain relationship • Continues to increase with age • Unusual events • Seen only a few times during mission • Plate charging

  9. Rare Events: Revolution 953, JEM-X2

  10. Rare Events: JEM-X1 Revolution 332

  11. Calibration Sources

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