Analysis discussion meeting

Europe/Zurich
https://psich.zoom.us/j/64223995890?pwd=b0RJMmdQQytMdnlDOW9wd0YrLy9WUT09

https://psich.zoom.us/j/64223995890?pwd=b0RJMmdQQytMdnlDOW9wd0YrLy9WUT09

Overleaf for publication on data of 2022: https://www.overleaf.com/3255896293nmkhrjktphff#5d11fd 

 

Michael:

Made an animation for the radon being flushed out of the gas cell after decay with corresponding graphs (see slides if you want to use it)

Idea for improving ELET: Naive algorithm can work better than exact extrapolation, but this corresponds to extrapolating to a different value

--> What if we extrapolate to a value below zero with a third parameter? Risetime gives an indication of the shift due to non-linearity --> Quick simulation (based on e^t/tau - 1 pulses) looks good but still need to do on pulses from the data

 

Katharina:

SDD timing: weird broad time structure (~1.3 µs total width) with double hump

ELET and template fitting didn't seem to work, but maybe cutting some events based on chi2 could improve a bit

Several microseconds for charges drifting around is likely the cause for bad timing

 

Marie:

Test collection with Ag-110m as electronic equivalent for Ag108m

Compared lasers on 110m side peaks and a bit further outward (109 has it's resonance at the centroid)

Efficiency seemed reasonable and purity O(1-5%) for different collection conditions --> Quite good since we started from a relative ratio of ~1e-7

 

Stella:

Talked with Mia Au at ISOLDE about collecting radium. Ionization efficiency is good, but no clue about extraction efficiency.

We could do a test this winter physics to quantify and collect for a target next winter physics for an actual Ra-226 target for muX --> To be discussed more

 

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