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Calibration of the EPIC MOS Timing Mode

Calibration of the EPIC MOS Timing Mode. Marcus G. F. Kirsch. menu. current status of timing mode energy calibration calibration proposal. useful data. 1E0102-7219 OBS 0135721001 rev 447 LW and Timing Mode for both cameras. 1E0102-7219 MOS1. black: LW red: Timing. 1E0102-7219 MOS2.

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Calibration of the EPIC MOS Timing Mode

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  1. Calibration of the EPIC MOS Timing Mode Marcus G. F. Kirsch

  2. menu • current status of timing mode • energy calibration • calibration proposal

  3. useful data • 1E0102-7219 • OBS 0135721001 • rev 447 • LW and Timing Mode for both cameras

  4. 1E0102-7219 MOS1 • black: LW • red: Timing

  5. 1E0102-7219 MOS2 • black: LW • red: Timing

  6. 1E0102-7219 LW-Mode • black: MOS1 • red: MOS2

  7. 1E0102-7219 Timing-Mode • black: MOS1 • red: MOS2

  8. fitting the lines: LW vs. Timing • Timing mode is overcorrected by up to 1.5 % • trend is similar for both MOSs

  9. fitting the lines: M1 vs. M2 • differences between both MOSs per mode less than 0.7 %

  10. absolute line pos.diff. • M1 LW-T: -8eV - -12 eV • M2 LW-T:-7eV - -12 eV • Ti M2-M1:+2eV - -8eV • LW M2-M1:0eV - -7eV

  11. conclusion • energy in Timing mode is overcorrected by up to 1.5 % • energy differences between both MOSs in LW mode less than ~0.7 % • differences between both MOSs in Timing mode less than ~0.5 % • proposal: fix differences between LW and Timing mode with an energy dependent tuning function (as also successfully done for the pn)

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