Coincidence measurements with 20 keV photons show that the residual ionic potential can deflect and back-reflect Compton electrons across five bound orbitals.
Three bent silicon crystals use volume reflection to steer septum-bound protons away, reaching the loss reduction needed for higher-intensity SPS extraction.
Time-correlation measurements separate impurity release from grid photo-ionization, identifying 30–70% of low-electron backgrounds as potentially reducible.
SiPM Readout Separates Cherenkov and Scintillation Light
Optical filtering plus waveform-template fitting separates two crystal-light components event by event, reaching Cherenkov yields up to about 150 photoelectrons per GeV.
A 4 K NdFeB trap combines a 280 mT permanent field with superconducting image-current readout to demonstrate single-particle precision without a superconducting magnet.
A point-contact NbSi sensor concentrates charge-drift phonons near the TES, resolving single pairs at 20 mK while separating ionizing from non-ionizing backgrounds.
Squeezed Light Evades Back-Action in 40-Kilogram Oscillator
Frequency-dependent squeezing creates a negative imprecision–back-action correlation, cutting observed motion near a feedback-defined resonance by about 47%.
Laser Spectroscopy Strengthens Evidence for the N=32 Closure
Sensitive collinear spectroscopy of calcium isotopes links a single-particle-like $^{53}\mathrm{Ca}$ moment and a steeper charge-radius rise toward $^{54}\mathrm{Ca}$ to a robust shell closure.
