What Is This Tool?
This unit converter allows you to translate radiation absorbed doses expressed in picogray (pGy), a very small SI-derived unit, into millirad (mrd), a legacy rad-based unit. It is designed to support conversions needed for scientific research, medical dosimetry, environmental monitoring, and calibration tasks.
How to Use This Tool?
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Enter the radiation dose value in picogray (pGy) into the input field.
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Select picogray as the source unit and millirad as the target unit if not auto-selected.
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Click the convert button to get the equivalent dose in millirad (mrd).
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Review the result to assist with dose comparison, calibration, or documentation.
Key Features
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Converts extremely small absorbed dose values from picogray to millirad.
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Supports measurement units relevant to radiation absorbed dose.
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Browser-based and easy to use for quick conversion.
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Useful for both scientific and historical measurement unit contexts.
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Facilitates calibration and reporting across different radiation units.
Examples
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10 picogray equals 1 × 10⁻⁶ millirad.
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1,000 picogray equals 1 × 10⁻⁴ millirad.
Common Use Cases
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Relating very small absorbed doses measured in SI units to legacy rad-based units for comparison.
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Calibrating ultra-sensitive radiation detectors and dosimeters using either unit system.
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Reporting and monitoring environmental background radiation and occupational dose levels.
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Supporting medical and radiation safety documentation where both unit types appear.
Tips & Best Practices
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Ensure the instrument measuring dose is calibrated to handle the low levels involved.
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Be aware of unit system differences when reporting or comparing results across studies.
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Use this conversion to better understand dose levels reported in legacy and SI units.
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Double-check entered values and units to avoid errors in very small dose calculations.
Limitations
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Millirad is a non-SI legacy unit that might cause confusion during unit system mixing.
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Accurate conversion requires careful instrumentation especially at pico-scale doses.
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Precision issues may arise due to the extremely low absorbed dose levels involved.
Frequently Asked Questions
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What does picogray measure?
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Picogray is an SI-derived unit that quantifies extremely small amounts of radiation energy absorbed per unit mass.
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Why convert picogray to millirad?
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Converting picogray to millirad allows comparing small absorbed doses in SI units with legacy rad-based units commonly used in historical and medical contexts.
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Is millirad a standard unit?
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Millirad is a legacy, non-SI unit historically used for measuring absorbed radiation dose, still relevant in some medical and calibration settings.
Key Terminology
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Picogray (pGy)
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An SI unit equal to 10⁻¹² gray, used to measure extremely small absorbed radiation doses.
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Millirad (mrd)
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A legacy unit of absorbed radiation dose, equal to one thousandth of a rad and equivalent to 1×10⁻⁵ gray.
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Absorbed dose
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The amount of energy from ionizing radiation deposited per unit mass of material.