Gray Converter
Convert Gray to Picogray 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.
Picograypg
Target UnitThe picogray (pg) is a subunit of gray, which is the SI unit for measuring the absorbed dose of ionizing radiation. One picogray is equal to one trillionth (10^-12) of a gray. The gray measures the amount of radiation energy absorbed per kilogram of matter, and thus, the picogray is used to quantify very small doses of radiation, particularly in biological and medical contexts. This makes the picogray essential for radiation safety and medical diagnostics, where precise measurements are crucial for evaluating exposure levels.
Current Use
The picogray is primarily used in medical physics, radiation therapy, and radiobiology to measure low doses of radiation absorbed by tissues. It is essential in clinical settings for assessing exposure during diagnostic imaging procedures and radiation treatments. Researchers also use picograys when conducting studies on the effects of low-level radiation exposure on biological systems, facilitating accurate risk assessments and safety evaluations.
Fun Fact
The picogray is so small that it is often used in contexts requiring ultra-precise measurements.
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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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Picogray
radiation • Non-SI
Definition
The picogray (pg) is a subunit of gray, which is the SI unit for measuring the absorbed dose of ionizing radiation. One picogray is equal to one trillionth (10^-12) of a gray. The gray measures the amount of radiation energy absorbed per kilogram of matter, and thus, the picogray is used to quantify very small doses of radiation, particularly in biological and medical contexts. This makes the picogray essential for radiation safety and medical diagnostics, where precise measurements are crucial for evaluating exposure levels.
History & Origin
The picogray was introduced as a metric prefix to allow for the expression of very small quantities of radiation dose, which became increasingly relevant in fields like radiation therapy and radiobiology. With the growing understanding of the effects of radiation on biological tissues, there was a need for more precise units to quantify low doses and ensure safety in medical treatments. The use of small units like the picogray allows researchers and clinicians to communicate precise measurements effectively.
Etymology: The term 'pico' derives from the Spanish word 'pico', meaning 'peak' or 'small', and is used in the metric system as a prefix denoting one trillionth (10^-12).
Current Use
The picogray is primarily used in medical physics, radiation therapy, and radiobiology to measure low doses of radiation absorbed by tissues. It is essential in clinical settings for assessing exposure during diagnostic imaging procedures and radiation treatments. Researchers also use picograys when conducting studies on the effects of low-level radiation exposure on biological systems, facilitating accurate risk assessments and safety evaluations.
💡 Fun Facts
- •The picogray is so small that it is often used in contexts requiring ultra-precise measurements.
- •In some medical studies, doses measured in picograys can help determine the threshold for radiation-induced damage.
- •The picogray is part of a family of units that includes several other 'pico' units, highlighting the need for precision in measurement.
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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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