May 24 – 28, 2021
America/Vancouver timezone

Progress of kinetic inductance detectors on CaF2 for astroparticle physics

May 26, 2021, 5:00 AM
Poster Experiments: Dark Matter Detectors Posters: Dark Matter Detectors


Zulfakri Mohamad


Kinetic Inductance Detector (KID) is an exciting device that promises high sensitivity, large format, and submillimeter waves for X-ray imaging arrangements for astrophysics. The KID consists of a superconductor thin film microwave resonator combined with a transmission line. When energy accumulates, Cooper's pair in superconductor films break, producing a quasi-particle. This change increases the kinetic induction in the resonant circuits and can be monitored by the transmission line. Lumped element KID (LEKID) is applied to CaF2 crystals as a substrate in our experiment. 48Ca is one of the double-beta decay nuclei, and 19F is sensitive to spin-dependent elastic scattering with dark matter. The LEKID on CaF2 can be cooled to 10mK. At this stage, the quality factors of the LEKID are about 400 × 10^3 and measurement for particle detection using 241Am particle irradiation also demonstrated at this low temperature.

TIPP2020 abstract resubmission? No, this is an entirely new submission.

Primary author

Zulfakri Mohamad (Tohoku Universitu)


Koji Ishidoshiro (Tohoku University) Yasuhiro Kishimoto (Tohoku University) Satoru Mima (Riken) Tohru Taino (Saitama University) Keishi Hosokawa (Tohoku university) Kosuke Nakamura (Tohoku University) Minori Eizuka (Tohoku University) Ryota Ito (Saitama University) Hiroki Kawamura (Saitama University)

Presentation materials