XRT Stray Light Study 5 & 6 -- Measurement and Correction.

Link to the 4th test page.
Link to the 7th test page.

(12 August, 2014 by Aki Takeda)

1. Purposes of the tests.

Purposes of the 5th test (performed in the 2014/07/29 timeline).

Purposes of the 6th test (performed in the 2014/07/31 timeline).

The tests were performed on:

Solar condition.


2. Test sequences.

Med-Al sequence (2014/07/30).

Med-Be sequence (2014/07/31).

Thick-Al sequence (2014/07/31).

Thick-Be sequence (2014/08/1).

3. Results of the test observation.

3.1 Sunset light curves

at the time of Med-Al measurement.

at the time of Med-Be measurement.

at the time of Thick-Al measurement.

at the time of Thick-Be measurement.

Light curve from the 1st to 4th tests

3.2 Stray light images

Med-Al stray light images obtained (movie).

No significant stray light detected. Slight enhancement at the center of CCD (known as the smudge).

Med-Be stray light images obtained (movie).

No significant stray light detected. Slight enhancement at the center of CCD (known as the smudge).

Thick-Al stray light images obtained (movie).

No significant stray light detected. Slight enhancement at the center of CCD (known as the smudge).

Thick-Be stray light images obtained (movie).

No significant stray light detected. Slight enhancement at the center of CCD (known as the smudge).