English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

The simultaneous measurement of phonons and scintillation light induced byincident particles in a scintillating crystal such as CaWO4 is a powerfultechnique for the active rejection of background induced by gamma's and beta'sand even neutrons in direct Dark Matter searches. However, less than ~1% of theenergy deposited in a CaWO4 crystal is detected as light. Thus, very sensitivelight detectors are needed for an efficient event-by-event backgrounddiscrimination. Due to the Neganov-Luke effect, the threshold oflow-temperature light detectors based on semiconducting substrates can beimproved significantly by drifting the photon-induced electron-hole pairs in anapplied electric field. We present measurements with low-temperature lightdetectors based on this amplification mechanism. The Neganov-Luke effect makesit possible to improve the signal-to-noise ratio of our light detectors by afactor of ~9 corresponding to an energy threshold of ~21 eV. We also describe amethod for an absolute energy calibration using a light-emitting diode.

Low-Temperature Light Detectors: Neganov-Luke Amplification and Calibration