Creating a new “X-ray detector” .. These are its most important features
Creating a new “X-ray detector” .. These are its most important features 1-428
X-rays are one of the oldest medical technologies that are still used to this day, as their use dates back to the early twentieth century, and since then, the use has evolved and its techniques have improved, and it has become used in many fields, including medicine, industry, earth sciences, physics and chemistry.
This type of radiation is used in medicine to diagnose diseases, monitor treatments, and perform surgeries. It is also used in the food and drug industry to detect contamination and quality checks. X-rays are also used in the manufacture of electronic devices, medical and security devices.
X-ray technologies have been greatly developed to make them more accurate and safe and to reduce the radiation dose used in them, and research continues in this field to improve the effectiveness and safety of X-rays in all fields.
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What are X-rays?
X-rays are high-energy photons of short wavelength and very high frequency, used as a medical diagnostic tool since 1896. X-rays are usually described by their maximum energy, which is determined by the voltage between the electrodes.
The energy carried by the rays is converted into an optical or electronic form by means of an “X-ray detector”, as there are two classifications for these devices according to the energy level, namely the hard level and the soft level.
Rays that carry high photon energies, ranging from 5 to 10 kiloelectronvolts (keV), are called “hard rays” and are widely used in medical radiology. Because it can penetrate dense materials such as bone, soft rays, whose energy level is less than 1 kiloelectronvolt, are ideal for imaging living matter such as tissues and cells.
Creating a new “X-ray detector” .. These are its most important features 1-429
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Some medical conditions require the X-ray detector to operate at both energy levels, such as looking for tumors in breast tissue. The problem with current detectors made of silicon and selenium is that they are either hard or soft, and they lack the ability to distinguish between two nearby objects.
Researchers at Monash University in Melbourne, Australia, have developed a highly sensitive, multi-energy “X-ray detector” using technologies related to solar energy devices. The team has found that the mineral “perovskite halide” is an effective and versatile alternative to silicon and selenium. From managing the intensity of the radiation beam as it passes through the material, a process known as ray attenuation, this improved detector can be used in many applications, including detecting tumors in breast tissue.



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