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# Projects/Programs

### Calibrations: Ionization Chambers as Secondary Standards for Activity of Radionuclides

### Calibrations: Neutron Device Calibrations

### Calibrations: Neutron Source Strength

### Calibrations: Portable Manganese Sulfate Bath

### Calibrations: Radioactivity Standard Reference Material Program

### Calibrations: Water Calorimetry Primary Standards for Absorbed Dose to Water

### Carrier Dynamics Measured by Ultrafast Time-Resolved Terahertz Spectroscopy

### Chemical Functionalization and Manipulation of Nano Materials

### Chip-scale ultraprecise laser technologies

### CODATA values of the fundamental physical constants

### Cold Core Technology Platform

### Cold-atom-based sensor for measuring pressure in the ultra-high vacuum domain

### Color and appearance

### Compact Cold Atom Instruments

### Compact strontium optical clock with integrated photonics

### Compact Ultrastable Optical References

### Comparison: Co-60 Absorbed Dose for High-Dose Dosimetry

### Comparison of Synchrotron Radiation-Based Ultraviolet Source Calibrations at PTB and NIST

### Comparisons (Archive): Analysis of a new candidate Certified Reference Material (CRM) prepared by the International Atomic Energy Agency (IAEA)

### Comparisons (Archive): International Comparison of Tc-99 Activity

### Comparisons (Archive): International Inter-Comparison Exercise (IICE) for Natural CRMs development

### Comparisons (Archive): International Comparison of Pu-241 Activity

### Comparisons (Archive): Technetium-99m Primary Standardization and International Comparison

### Comparisons: International Comparisons for Air-Kerma and Absorbed Dose to Water from Gamma-ray Beams

### Comparisons: Key Comparison for Air-Kerma From Therapy Level and Radiation Protection Gamma-ray Beams

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