Gray Converter
Convert Gray to Exagray 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.
ExagrayEgray
Target UnitThe exagray (Egray) is a unit of measurement for absorbed radiation dose, defined as the absorption of one joule of radiation energy per kilogram of matter. One exagray equals 10^18 grays, where one gray corresponds to one joule of energy absorbed per kilogram. This unit is primarily used in high-energy physics, radiation therapy, and dosimetry. The exagray quantifies the immense amounts of energy that can be deposited in matter, making it crucial for understanding and quantifying radiation effects at extreme levels.
Current Use
Exagray is primarily utilized in high-energy physics experiments, radiological assessments, and advanced radiation therapy protocols, where extremely high doses of radiation are administered to achieve therapeutic effects. It serves as a standard for quantifying radiation levels in large-scale particle accelerator experiments, such as those conducted at CERN. Additionally, the exagray is relevant in nuclear science, where it helps communicate doses received in experimental conditions.
Fun Fact
The exagray is a part of the International System of Units (SI), which standardizes measurements across scientific disciplines.
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= × 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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Exagray
radiation • Non-SI
Definition
The exagray (Egray) is a unit of measurement for absorbed radiation dose, defined as the absorption of one joule of radiation energy per kilogram of matter. One exagray equals 10^18 grays, where one gray corresponds to one joule of energy absorbed per kilogram. This unit is primarily used in high-energy physics, radiation therapy, and dosimetry. The exagray quantifies the immense amounts of energy that can be deposited in matter, making it crucial for understanding and quantifying radiation effects at extreme levels.
History & Origin
The concept of measuring radiation doses began in the early 20th century with the discovery of radioactivity. The gray was adopted as the SI unit for absorbed dose in 1975, derived from the earlier unit rad. The exagray was introduced later to accommodate measurements at extremely high doses, particularly relevant in fields such as particle physics and large-scale radiation therapy. This evolution reflects the growing need for precise measurements in increasingly powerful radiation environments.
Etymology: The term 'exagray' combines the prefix 'exa-', denoting a factor of 10^18, with 'gray', named after British physicist Louis Harold Gray, who contributed significantly to radiation dosimetry.
Current Use
Exagray is primarily utilized in high-energy physics experiments, radiological assessments, and advanced radiation therapy protocols, where extremely high doses of radiation are administered to achieve therapeutic effects. It serves as a standard for quantifying radiation levels in large-scale particle accelerator experiments, such as those conducted at CERN. Additionally, the exagray is relevant in nuclear science, where it helps communicate doses received in experimental conditions.
💡 Fun Facts
- •The exagray is a part of the International System of Units (SI), which standardizes measurements across scientific disciplines.
- •In radiation therapy, doses may be calculated in exagrays to convey the intensity and energy delivered to tumors.
- •The prefix 'exa-' is derived from the Greek word 'hex', meaning six, indicating a factor of 10^18 (or 1 million trillion).
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