July 29, 2019 to August 2, 2019
Northeastern University
US/Eastern timezone

Designing and Building a Scintillating LAr Bubble Chamber for WIMPs and reactor CEvNS

Jul 30, 2019, 2:30 PM
West Village G 108 (Northeastern University)

West Village G 108

Northeastern University

Oral Presentation Particle Detectors Particle Detectors


Rocco Coppejans (Northwestern University)


The Scintillating Bubble Chamber (SBC) is a rapidly developing new technology for sub-keV nuclear recoil detection. Demonstrations in liquid xenon at the few-gram scale have confirmed that this technique combines the event-by-event energy resolution of a liquid-noble scintillation detector with the world-leading electron-recoil discrimination capability of the bubble chamber, and in fact maintains that discrimination capability at much lower thresholds than traditional Freon-based bubble chambers. The promise of unambiguous identification of sub-keV nuclear recoils in a scalable detector makes this an ideal technology for both GeV-mass WIMP searches and CEvNS detection at reactor sites. We will present progress from the SBC Collaboration towards the construction of a 10-kg argon bubble chamber with SiPM-based scintillation readout to test the low-threshold performance of this technique in a physics-scale device.

Primary author

Rocco Coppejans (Northwestern University)

Presentation materials