Search NASA⌕ Search
Home/Archive/DOE OSTI

DOE OSTI · 1836286

Evaluating Laser-Induced Breakdown Spectroscopy Sensor Technology for Rapid Source Characterization of Rare Earth Elements

Hartzler, Daniel A.·Bhatt, Chet R.·Jain, Jinesh C.·McIntyre, Dustin L.
View original source ↗Read source document ↗Export metadata ↓

Abstract

A prototype Laser Induced Breakdown Spectroscopy (LIBS) sensor is tested for the determination of rare earth elements (Eu and Yb) in liquid and solid samples. The sensor head, built using a monolithic passively Q-switched (PQSW) Nd:YAG laser, produced a 1064 nm laser beam with 3.3 ns pulses and an energy of 4.2 mJ. The measurements show good calibration linearity for both Eu and Yb with R 2 values above 0.99 for all analyzed spectral lines in liquid and solid samples. Limits of Detection (LODs) obtained were as low as 1 ppm, which are comparable to or better than those reported previously by using table top actively Q-switched systems. This study aims to develop a high sensitivity, field deployable sensor for characterizing existing and new sources of rare earth elements

Explore related subjects

47 OTHER INSTRUMENTATIONCalibrationDelaysEmissionsEngineering prototypesLasersPlasmas (Ionized gases)SensorsSpectroscopy

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Hartzler, Daniel A., Bhatt, Chet R., Jain, Jinesh C., McIntyre, Dustin L.. 2019-03-11. Evaluating Laser-Induced Breakdown Spectroscopy Sensor Technology for Rapid Source Characterization of Rare Earth Elements. https://doi.org/10.1115/1.4042747

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

KEEP EXPLORING

Related reports

DOE OSTI2026

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↗