14-17 September 2021
America/Los_Angeles timezone

Low Threshold Operation of the Scintillating Xenon Bubble Chamber

16 Sep 2021, 09:00
Detector techniques (HV, purification, cryogenics, calibration etc.) Detector Techniques (3A)


Matthew Bressler (Drexel University)


A scintillating bubble chamber with pure xenon was first operated in 2016 and has previously demonstrated coincident bubble nucleation and scintillation detection at thermodynamic thresholds above 4 keV. We now report on operation of the xenon bubble chamber at thermodynamic thresholds as low as 0.5 keV, including tests of bubble nucleation associated with gammas, and sensitivity to low energy neutrons from a $^{88}$Y-Be photoneutron source at thresholds around 1 keV. Additionally, these results again demonstrate coincident bubble nucleation and scintillation with 252Cf and background neutrons, and the scintillation channel allows us to make an efficient background-reducing cut for a nuclear recoil efficiency analysis, which is ongoing.

Primary author

Matthew Bressler (Drexel University)

Presentation Materials