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At least 37 records · Page 2
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PbS by Materials Project

PbS is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pb2+ is bonded to six equivalent S2- atoms to form a mixture of corner and edge-sharing PbS6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Pb–S bond lengths are 3.00 Å. S2- is bonded to six equivalent Pb2+ atoms to form a mixture of corner and edge-sharing SPb6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pd3(PbS)2 by Materials Project

Pd3(PbS)2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Pd is bonded in a distorted linear geometry to four Pb and two equivalent S atoms. There are two shorter (2.93 Å) and two longer (3.04 Å) Pd–Pb bond lengths. Both Pd–S bond lengths are 2.36 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded to six equivalent Pd and two equivalent S atoms to form corner-sharing PbPd6S2 hexagonal bipyramids. Both Pb–S bond lengths are 3.11 Å. In the second Pb site, Pb is bonded in a hexagonal planar geometry to six equivalent Pd atoms. S is bonded in a 4-coordinate geometry to three equivalent Pd and one Pb atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pd3(PbS)2 by Materials Project

Pd3(PbS)2 crystallizes in the cubic I2_13 space group. The structure is three-dimensional. Pd is bonded in a 2-coordinate geometry to four equivalent Pb and two equivalent S atoms. There are two shorter (2.89 Å) and two longer (3.14 Å) Pd–Pb bond lengths. Both Pd–S bond lengths are 2.34 Å. Pb is bonded in a 7-coordinate geometry to six equivalent Pd and one S atom. The Pb–S bond length is 3.27 Å. S is bonded in a 3-coordinate geometry to three equivalent Pd and one Pb atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PbS by Materials Project

PbS crystallizes in the monoclinic C2 space group. The structure is zero-dimensional and consists of four lead;sulfanide molecules. Pb2+ is bonded in a distorted single-bond geometry to one S2- atom. The Pb–S bond length is 2.69 Å. S2- is bonded in a single-bond geometry to one Pb2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PbS by Materials Project

PbS is Tungsten Carbide structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Pb2+ is bonded to six equivalent S2- atoms to form a mixture of distorted edge, face, and corner-sharing PbS6 pentagonal pyramids. All Pb–S bond lengths are 3.03 Å. S2- is bonded to six equivalent Pb2+ atoms to form a mixture of distorted edge, face, and corner-sharing SPb6 pentagonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PbS by Materials Project

PbS is High Pressure (4-7GPa) Tellurium-derived structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Pb2+ is bonded to six equivalent S2- atoms to form a mixture of edge, face, and corner-sharing PbS6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are three shorter (2.84 Å) and three longer (3.31 Å) Pb–S bond lengths. S2- is bonded in a 6-coordinate geometry to six equivalent Pb2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PbS by Materials Project

PbS is Molybdenum Carbide MAX Phase-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pb2+ is bonded to six equivalent S2- atoms to form a mixture of edge, face, and corner-sharing PbS6 octahedra. The corner-sharing octahedral tilt angles are 47°. All Pb–S bond lengths are 3.03 Å. S2- is bonded to six equivalent Pb2+ atoms to form a mixture of distorted edge and corner-sharing SPb6 pentagonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnTe(PbS)4 by Materials Project

SnTe(PbS)4 is Molybdenum Carbide MAX Phase-derived structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. there are four inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded to three equivalent Te2- and three equivalent S2- atoms to form PbTe3S3 octahedra that share corners with three equivalent PbS6 octahedra, corners with three equivalent SnTe3S3 octahedra, edges with three equivalent SnTe3S3 octahedra, and edges with nine PbTe3S3 octahedra. The corner-sharing octahedra tilt angles range from 1–2°. All Pb–Te bond lengths are 3.22 Å. All Pb–S bond lengths are 2.99 Å. In the second Pb2+ site, Pb2+ is bonded to six S2- atoms to form a mixture of edge and corner-sharing PbS6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are three shorter (3.01 Å) and three longer (3.02 Å) Pb–S bond lengths. In the third Pb2+ site, Pb2+ is bonded to six S2- atoms to form a mixture of edge and corner-sharing PbS6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are three shorter (3.02 Å) and three longer (3.04 Å) Pb–S bond lengths. In the fourth Pb2+ site, Pb2+ is bonded to six S2- atoms to form PbS6 octahedra that share corners with three equivalent PbS6 octahedra, corners with three equivalent SnTe3S3 octahedra, edges with three equivalent SnTe3S3 octahedra, and edges with nine PbS6 octahedra. The corner-sharing octahedra tilt angles range from 1–4°. There are three shorter (3.00 Å) and three longer (3.06 Å) Pb–S bond lengths. Sn2+ is bonded to three equivalent Te2- and three equivalent S2- atoms to form SnTe3S3 octahedra that share corners with six PbS6 octahedra, edges with six PbS6 octahedra, and edges with six equivalent SnTe3S3 octahedra. The corner-sharing octahedra tilt angles range from 2–4°. All Sn–Te bond lengths are 3.14 Å. All Sn–S bond lengths are 2.91 Å. Te2- is bonded to three equivalent Pb2+ and three equivalent Sn2+ atoms to form TeSn3Pb3 octahedra that share corners with six SPb6 octahedra, edges with six equivalent TeSn3Pb3 octahedra, and edges with six SPb6 octahedra. The corner-sharing octahedral tilt angles are 6°. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded to six Pb2+ atoms to form SPb6 octahedra that share corners with three equivalent TeSn3Pb3 octahedra, corners with three equivalent SPb6 octahedra, edges with three equivalent TeSn3Pb3 octahedra, and edges with nine SPb6 octahedra. The corner-sharing octahedra tilt angles range from 0–6°. In the second S2- site, S2- is bonded to six Pb2+ atoms to form a mixture of edge and corner-sharing SPb6 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. In the third S2- site, S2- is bonded to six Pb2+ atoms to form a mixture of edge and corner-sharing SPb6 octahedra. The corner-sharing octahedra tilt angles range from 1–2°. In the fourth S2- site, S2- is bonded to three equivalent Pb2+ and three equivalent Sn2+ atoms to form SSn3Pb3 octahedra that share corners with three equivalent TeSn3Pb3 octahedra, corners with three equivalent SPb6 octahedra, edges with three equivalent TeSn3Pb3 octahedra, and edges with nine SPb6 octahedra. The corner-sharing octahedra tilt angles range from 2–6°.

36 MATERIALS SCIENCE↗
DOE OSTI2024

PBS_UTILS

SF-24-051 PBS_Utils is a collection of tools and libraries for administrating a PBSPro/OpenPBS system.

Pershey, Eric↗
NASA NTRS1980

An airborne short wave infrared /SWIR/ pushbroom imaging system using a 64-element PbS detector array

Research evidence indicates that data in the short wave infrared (SWIR) spectral region will greatly improve the information content of remotely sensed data. Bands are required in the 1.55-1.75 micron and 2.08-2.35 micron spectral regions for a variety of agricultural and geological investigations. It is anticipated that future Landsat sensors will use pushbroom linear array technology to obtain high resolution, improved sensitivity and increased system reliability. To obtain early laboratory and field data, an airborne pushbroom image system has been designed for operation in the short wave infrared spectral region. The system uses a 64-element staggered PbS array and is operated at 195 K; the instrument has been designed to operate in an aircraft and will view a 19 degree swath width with a 5.8 mrad IFOV. The spectral bandwidth of each channel is .05 micron and the noise equivalent reflectivity in the order of .2% is provided. The requirements for more advanced detector arrays for use in future NASA spacecraft remote sensing instruments are also discussed.

Husain-Abidi, A. S.↗
NASA NTRS1983

Fundamental linewidth in solitary, ultranarrow output PbS(1-x)Se(x) diode lasers

The fundamental, quantum phase noise limited Lorentzian linewidth was directly measured from the beat-note spectra generated by heterodyning PbS(1-x)Se(x) diode lasers with a stable CO gas laser. The experimental results were matched by calculated theoretical line profiles. Linewidths as narrow as 22 kHz full width at half-maximum power were observed.

Freed, C.↗
DOE OSTI2020

Materials Data on Ni3(PbS)2 by Materials Project

Ni3Pb2S2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ni is bonded in a distorted linear geometry to four Pb and two equivalent S atoms. There are two shorter (2.82 Å) and two longer (2.84 Å) Ni–Pb bond lengths. Both Ni–S bond lengths are 2.18 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a hexagonal planar geometry to six equivalent Ni atoms. In the second Pb site, Pb is bonded to six equivalent Ni and two equivalent S atoms to form corner-sharing PbNi6S2 hexagonal bipyramids. Both Pb–S bond lengths are 3.16 Å. S is bonded in a 3-coordinate geometry to three equivalent Ni and one Pb atom.

36 MATERIALS SCIENCE↗
DOE OSTI2021

Combining Clinical and Dosimetric Features in a PBS Proton Therapy Cohort to Develop a NTCP Model for Radiation-Induced Optic Neuropathy

Radiation-induced optic neuropathy (RION) is a rare, yet severe complication following radiation therapy for brain, head and neck, or skull-base tumors. Although several risk factors, such as age, metabolic syndrome, and delivered dose, have been identified, we aimed at expanding the understanding of the mechanisms of interplay regarding dosimetry and patient variables leading to the onset of RION with a focus on proton therapy.

62 RADIOLOGY AND NUCLEAR MEDICINE↗