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XENON1T / pax

The XENON1T raw data processor [deprecated]
BSD 3-Clause "New" or "Revised" License
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Update 3D FDC map for 4th period #670

Closed jingqiangye closed 6 years ago

jingqiangye commented 6 years ago

Only the 3D FDC map for 4th period(10/07/2017- 01/30/2018) is changed due to the new acquired Kr data, the rest 3 periods are still using previous maps.

Following two plots are showing low energy ER background(cs1 < 200 PE, inside ER band) radial distribution. We can find after 3D FDC update, the peak is moving closer to expected TPC boundary. We still observe that even after 3D FDC update, the peak position is still less than 47.9 cm. A potential explanation for that is we have less Kr in later stage due to Rubidium decay, thus we're actually focus less on the later stage, which has more field distortion. Currently, this effect is very small(less than 0.1 cm), considering the position resolution. It should be improved in the future. plot_before_update plot_after_update

feigaodm commented 6 years ago

looks like it's a little off 47.9, any explanation?

jingqiangye commented 6 years ago

A potential explanation for that is we have less Kr in later stage due to Rubidium decay, thus we're actually focus less on the later stage, which has more field distortion. In short, we're correcting less due to we have more Kr in earlier stage.

feigaodm commented 6 years ago

@jingqiangye Please delete older files as requested and we can merge.

jingqiangye commented 6 years ago

Done. Shall I change Correction minitree version? Because I remember Dan said e-lifetime needs to be update as well, so I'm not sure if I shall change the version number right now.

pdeperio commented 6 years ago

We'll take care of hax versioning: https://github.com/XENON1T/hax/pull/212