What Is This Tool?
This tool is designed to convert radiation dose rates between centigray per second (cGy/s) and rad per second (rd/s, rad/s). It enables users to translate absorbed dose measurements between modern SI units and legacy radiation units, aiding in clinical, industrial, or research applications.
How to Use This Tool?
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Enter the radiation dose rate value in centigray/second [cGy/s]
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Select the output unit as rad/second [rd/s, rad/s]
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Click the convert button to obtain the equivalent dose rate
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Use the converted value for interpreting or reporting radiation measurements in legacy units
Key Features
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Direct conversion between centigray/second and rad/second units
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Supports usage in medical physics, radiotherapy, and radiation protection
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Handles absorbed dose rate units relevant for both modern and legacy equipment
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Simple browser-based interface for quick and easy conversions
Examples
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5 cGy/s converts to 5 rad/s
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0.2 cGy/s converts to 0.2 rad/s
Common Use Cases
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Measuring and specifying beam delivery rates in external-beam radiotherapy
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Calibrating dosimeters and sources during medical physics and radiobiology studies
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Characterizing exposures in industrial radiation processing and accelerator facilities
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Expressing dose rates in radiological surveys and radiation protection using legacy units
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Reporting historical radiotherapy or irradiation data recorded in rads
Tips & Best Practices
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Ensure calibration consistency when converting between these units
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Use the rad/second unit primarily for compatibility with older equipment or legacy data
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Recognize that both units represent the same dose rate magnitude, simplifying conversions
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Prefer gray or centigray units for modern radiation dose measurements as recommended
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Be aware that conversion does not account for biological dose effectiveness differences
Limitations
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Rad per second is a non-SI legacy unit and modern standards favor gray or centigray
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Conversion assumes consistent calibration but does not reflect biological or distribution differences
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Legacy radiation protection devices may still require readings in rad/second
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Use caution when interpreting older data with modern measurement techniques
Frequently Asked Questions
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What does 1 centigray per second represent?
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It represents an absorbed radiation dose rate of 0.01 gray per second, indicating how quickly radiation energy is deposited in a material.
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Why convert from centigray/second to rad/second?
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Conversions are often needed to express dose rates in legacy units compatible with older equipment or historical radiation data.
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Are centigray/second and rad/second equivalent units?
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Yes, 1 cGy/s equals 1 rad/s in terms of absorbed dose rate magnitude, enabling direct conversions without scaling.
Key Terminology
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Centigray per second (cGy/s)
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A unit of absorbed dose rate equal to 0.01 gray per second used to quantify radiation energy deposition rate.
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Rad per second (rd/s, rad/s)
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A legacy unit of absorbed dose rate equal to one rad delivered per second, where 1 rad = 0.01 joule per kilogram of material.
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Absorbed dose rate
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The rate at which radiation energy is deposited in a given mass of material per unit time.