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  1. X-Ray Mass Attenuation Coefficients | NIST

    Sep 17, 2009 · Note on NIST X-ray Attenuation Databases Table of Contents Introduction X-Ray Mass Attenuation Coefficients Table 1. Material constants for elemental media. Table 2. …

  2. Standard Reference Materials | NIST

    NIST supports accurate and compatible measurements by certifying and providing over 1200 Standard Reference Materials® with well-characterized composition or properties, or both

  3. 1. Introduction Reflectance, transmittance, and absorptance/emittance are essential optical properties of materials needed for optical science research and industrial applications.

  4. Cryogenic Materials Properties Reference List | NIST

    Feb 27, 2018 · Aluminum 1100 Linear Expansion Thermal Expansion of Some Engineering Materials

  5. Add materials to the Classwork page - Computer - Classroom Help

    As a Classroom teacher, you can post resource materials, such as a syllabus, classroom rules, or topic-related reading, to the Classwork page. Like other types of posts on the Classwork page, …

  6. NIST’s Curved Neutron Beams Could Deliver Benefits Straight to …

    Apr 17, 2025 · Scientists from NIST and other institutions have created the first neutron “Airy beam,” which has unusual capabilities that ordinary neutron beams do not. This achievement …

  7. Stopping-Power & Range Tables for Electrons, Protons, and …

    Oct 7, 2009 · Abstract: The databases ESTAR, PSTAR, and ASTAR calculate stopping-power and range tables for electrons, protons, or helium ions, according to methods described in …

  8. Introducing Portico, the Healthy Materials Tool - Google Help

    The Healthy Materials Program benefits all, empowering users to... Respond to the increasing market demand for healthy materials, transparency, LEED certification, and industry …

  9. Additive Manufacturing of Advanced Materials | NIST

    Nov 12, 2024 · Cementitious Materials Our team studies cementitious materials to develop measurement science tools and standards for additive manufacturing. Learn more. NIST …

  10. SRM NIST Standard Reference Materials Catalog January 2025

    Feb 3, 2025 · SRM Catalog listing all SRMs for sale