Engineering Papers⌕ Search

DOE OSTI · 2336732

Joule-class THz pulses from microchannel targets

Abstract

Inference of joule-class THz radiation sources from microchannel targets driven with hundreds of joule, picosecond lasers is reported. Here, THz sources of this magnitude are useful for nonlinear pumping of matter and for charged-particle acceleration and manipulation. Microchannel targets demonstrate increased laser–THz conversion efficiency compared to planar foil targets, with laser energy to THz energy conversion up to ~0.9% in the best cases.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Bruhaug, G., Rinderknecht, H. G., Weichman, K., VanDusen-Gross, M., Palastro, J. P., Wei, M. S., Regan, S. P., E, Y., Garriga, K., Zhang, X. -C., Collins, G. W., Rygg, J. R.. 2024-03-21. Joule-class THz pulses from microchannel targets. https://doi.org/10.1364/ol.518981

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

High Multiplicity Trigger for long-lived particles in CMS detector

Searches for long-lived particles (LLPs) at the CMS experiment often involve unconventional event topologies that are difficult to efficiently select using standard trigger strategies. To improve sensitivity to such signatures during LHC Run 3 operation, a dedicated High Multiplicity Trigger (HMT) has been developed and deployed in the CMS trigger system. The trigger targets events containing unusually large numbers of hits in the CMS cathode strip chamber (CSC) muon detectors, a characteristic signature of several LLP scenarios involving displaced decays in the muon system. The HMT implementation, trigger logic, rate dependence with pileup, and operational stability are described. Optimized hit multiplicity thresholds are used to maintain acceptable trigger rates under high-luminosity and high-pileup conditions while preserving high efficiency across a broad range of LLP lifetimes and kinematic regimes. The trigger performance is evaluated using both simulated event samples and proton-proton collision data collected during Run 3 of the LHC. The HMT substantially extends the CMS sensitivity to non-standard signatures associated with LLP decays and provides a flexible platform for future searches for physics beyond the Standard Model.

47 OTHER INSTRUMENTATION↗