Gray Converter
Convert Gray to Centigray and more • 73 conversions
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Unit Explanations
GrayGy
Source UnitThe gray (Gy) is the SI derived unit of absorbed dose of ionizing radiation, defined as the absorption of one joule of radiation energy by one kilogram of matter. It quantifies the amount of energy deposited by radiation in a specified mass of material, which in biological contexts is often human tissue. The gray is crucial in assessing radiation exposure and its potential biological effects, and it serves as a fundamental unit in radiation safety and protection protocols.
Current Use
The gray is widely used in medical fields, particularly in radiation therapy for cancer treatment, where precise dosages are critical for effective treatment while minimizing damage to surrounding healthy tissue. It is also employed in radiological assessments, nuclear power, and safety protocols for radiation workers. Various international organizations, including the International Atomic Energy Agency (IAEA), utilize the gray for consistent communication regarding radiation exposure levels.
Fun Fact
The gray is equivalent to 100 rad, an older unit of absorbed dose.
CentigraycGy
Target UnitThe centigray (cGy) is a submultiple of the gray, which is the SI unit of absorbed radiation dose. It quantifies the amount of radiation energy absorbed per kilogram of matter, particularly biological tissue. One centigray is equal to 0.01 gray, making it a convenient unit for expressing smaller doses of radiation that are commonly encountered in medical diagnostics and radiation therapy. The gray itself is defined as the absorption of one joule of radiation energy by one kilogram of matter. Thus, a centigray represents a dose of one-hundredth of this amount, facilitating precise measurements in clinical and research settings.
Current Use
Currently, the centigray is widely used in medical fields, particularly in radiation therapy for cancer treatment and diagnostic imaging. It helps quantify the dose of radiation patients receive during procedures such as X-rays, CT scans, and radiation treatments. Additionally, it is utilized in research settings, where precise dose measurements are crucial for experimental accuracy and safety.
Fun Fact
The gray is named after Louis Harold Gray, who was instrumental in the study of radiation effects on biological tissues.
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📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Gray
radiation • SI Unit
Definition
The gray (Gy) is the SI derived unit of absorbed dose of ionizing radiation, defined as the absorption of one joule of radiation energy by one kilogram of matter. It quantifies the amount of energy deposited by radiation in a specified mass of material, which in biological contexts is often human tissue. The gray is crucial in assessing radiation exposure and its potential biological effects, and it serves as a fundamental unit in radiation safety and protection protocols.
History & Origin
The gray was introduced in 1975 by the International System of Units (SI) as the unit of absorbed dose to provide a standardized measurement for radiation exposure. Its creation was a response to the need for a unified system that could facilitate consistency in scientific research and practical applications in radiology, nuclear medicine, and radiation therapy.
Etymology: The unit is named after the British physicist Louis Harold Gray, who made significant contributions to the field of radiation therapy and the study of radiation's effects on biological tissue.
Current Use
The gray is widely used in medical fields, particularly in radiation therapy for cancer treatment, where precise dosages are critical for effective treatment while minimizing damage to surrounding healthy tissue. It is also employed in radiological assessments, nuclear power, and safety protocols for radiation workers. Various international organizations, including the International Atomic Energy Agency (IAEA), utilize the gray for consistent communication regarding radiation exposure levels.
💡 Fun Facts
- •The gray is equivalent to 100 rad, an older unit of absorbed dose.
- •The gray is used in radiation therapy to ensure that the cancerous tissue receives a lethal dose while surrounding healthy tissue receives a much lower dose.
- •Louis Harold Gray was the first scientist to quantify the effects of radiation on living tissue, leading to advancements in cancer treatment.
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Centigray
radiation • Non-SI
Definition
The centigray (cGy) is a submultiple of the gray, which is the SI unit of absorbed radiation dose. It quantifies the amount of radiation energy absorbed per kilogram of matter, particularly biological tissue. One centigray is equal to 0.01 gray, making it a convenient unit for expressing smaller doses of radiation that are commonly encountered in medical diagnostics and radiation therapy. The gray itself is defined as the absorption of one joule of radiation energy by one kilogram of matter. Thus, a centigray represents a dose of one-hundredth of this amount, facilitating precise measurements in clinical and research settings.
History & Origin
The centigray was introduced as a convenient subunit of the gray to facilitate the measurement of smaller doses of radiation. The gray was adopted as part of the International System of Units (SI) in 1975, replacing earlier units like the rad. The centigray emerged to address the need for finer resolution in dosage measurement, particularly in medical applications where precise radiation dosages are crucial for patient safety and treatment efficacy.
Etymology: The term 'centigray' combines the prefix 'centi-', meaning one-hundredth, with 'gray', named after the British physicist Louis Harold Gray who contributed significantly to radiation measurement.
Current Use
Currently, the centigray is widely used in medical fields, particularly in radiation therapy for cancer treatment and diagnostic imaging. It helps quantify the dose of radiation patients receive during procedures such as X-rays, CT scans, and radiation treatments. Additionally, it is utilized in research settings, where precise dose measurements are crucial for experimental accuracy and safety.
💡 Fun Facts
- •The gray is named after Louis Harold Gray, who was instrumental in the study of radiation effects on biological tissues.
- •The centigray is commonly used to express doses in radiation therapy, where precision is vital for patient safety.
- •One rad, an older unit of radiation dose, is equivalent to 0.01 gray, highlighting the centigray's role in transitioning to SI units.
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Frequently Asked Questions
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To convert to , multiply your value by 1. For example, 10 equals 10 .
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The formula is: = × 1. This conversion factor is based on international standards.
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