Analysis discussion meeting

Friday 6 May 2022, 09:00 → 10:00 Europe/Zurich

Zoom link: https://psich.zoom.us/j/62320179614?pwd=K2QrVVY5elIyZVFxNmFQbFpYaVJUUT09

Andreas:

Target making PSI and Mainz electroplating and drop on demand

Electroprinting started with Barium (similar chemically) looks promising

Drop on demand a bit trickier for now, but parameter space is being investigated

 

Stella:

new calculations from Natalia --> Calculated again for different dR and dQ

2nd order polynomial in 2D space

More extreme changes with dR, than for dQ

Studied the dependencies of energy shifts and intensities with respect to changing dR and dQ

Shift in multiplets are in the same direction --> No real improvement in the fit (0.01 change in reduced chi square)

Relative precision better than E-5 for absolute charge radii

 

Nilesh:

Fitting 2s-1s for Krypton

Tiny bump on the shoulder of (most likely) Michel electrons

Bump shape can't be over estimated

Try to understand all of the background contributions

Zinc analysis: Coincidence analysis between the crystals

 

Michael:

Neutron pulse shape discrimination

Investigating short integration windows: best window end around 35 clock ticks

Energy depedence for PSD achieved

Energy calibration in keVee, low activity Co60, only use Y-88 and Cs-137 Compton edges to calibrate

Calibration and adding neutron flags --> Michael will follow up on this

 

Andreas:

Recoiling of germainum nucleus after X-ray detection

0.08 keV shift with no clear reference in the Saito et al. paladium paper

Michael will attempt to find more information about this

1 Cm-248 analysis update

Speaker: Stergiani Marina Vogiatzi (PSI - Paul Scherrer Institut)

analysis_2022-05-06.pdf