Articles with "cryogenically cooled" as a keyword



B1 inhomogeneity correction of RARE MRI at low SNR: Quantitative in vivo 19 F MRI of mouse neuroinflammation with a cryogenically-cooled transceive surface radiofrequency probe.

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Published in 2021 at "Magnetic resonance in medicine"

DOI: 10.1002/mrm.29094

Abstract: PURPOSE Low SNR in fluorine-19 (19 F) MRI benefits from cryogenically-cooled transceive surface RF probes (CRPs), but strong B1 inhomogeneities hinder quantification. Rapid acquisition with refocused echoes (RARE) is an SNR-efficient method for MRI of… read more here.

Keywords: low snr; vivo; cryogenically cooled; neuroinflammation ... See more keywords

Vibrational spectroscopy of the cryogenically cooled O- and N-protomers of 4-Aminobenzoic acid: Tag effects, isotopic labels, and identification of the E,Z isomer of the O-protomer.

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Published in 2020 at "International journal of mass spectrometry"

DOI: 10.1016/j.ijms.2020.116427

Abstract: 4-Aminobenzoic acid (4ABA) is a biologically relevant, small organic molecule with two protonation sites: the amino group (N-protomer) and the carboxyl group (O-protomer). The O-protomer is energetically preferred in the gas-phase, while the higher energy… read more here.

Keywords: cryogenically cooled; aminobenzoic acid; group; vibrational spectroscopy ... See more keywords

Nd+ isotope shift measurements in a cryogenically cooled neutral plasma

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Published in 2020 at "Physical Review A"

DOI: 10.1103/physreva.101.052505

Abstract: We report measurements of the isotope shifts of two transitions ($4{f}^{4}6s\ensuremath{\rightarrow}{[25044.7]}_{7/2}^{o}$ and $4{f}^{4}6s\ensuremath{\rightarrow}{[25138.6]}_{7/2}^{o}$) in neodymium ions (${\mathrm{Nd}}^{+}$) with hundredfold improved accuracy, using laser spectroscopy of a cryogenically cooled neutral plasma. The isotope shifts were measured… read more here.

Keywords: cryogenically cooled; isotope shifts; neutral plasma; plasma isotope ... See more keywords

QCW surface-pumped cryogenically cooled single-slab laser with 1  kW level at 946  nm.

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Published in 2022 at "Applied optics"

DOI: 10.1364/ao.451288

Abstract: We present a kilowatt-level quasi-continuous-wave (QCW) cryogenically cooled 946-nm slab laser oscillator for the first time, to the best of our knowledge. The laser system is based on a double-face-pumped large-size single-slab Nd:YAG design, delivering… read more here.

Keywords: cryogenically cooled; qcw surface; slab laser; slab ... See more keywords

Cryogenically cooled Fe:ZnSe-based chirped pulse amplifier at 4.07 µm.

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Published in 2023 at "Optics express"

DOI: 10.1364/oe.486837

Abstract: A femtosecond chirped pulse amplifier based on cryogenically cooled Fe:ZnSe was demonstrated at 333 Hz-33 times higher than previous results achieved at near-room-temperature. The long upper-state lifetime allows free-running, diode-pumped Er:YAG lasers to be used as… read more here.

Keywords: cooled znse; chirped pulse; cryogenically cooled; znse based ... See more keywords

Fractional thermal load in cryogenically cooled Yb:YLF and Yb:YAG lasers

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Published in 2024 at "Optical Materials Express"

DOI: 10.1364/ome.521506

Abstract: : We present a method for the direct measurement of the fractional thermal load (FTL) in cryogenically cooled laser crystals. The experimental methodology involves characterizing the liquid nitrogen evaporation rate in a dewar containing the… read more here.

Keywords: cryogenically cooled; ftl; thermal load; ylf yag ... See more keywords