0
What else can I help you with?
What is lithography in vlsi and its types?
lithography is the prcess of transfering patterns of geometric shapes in a mask ina thin layer of radiation sensitive material covering the surface of a semiconductor wafer .
Who are the customers for nuclear measuring and control devices?
Most of the products shipped by the nuclear radiation detection and monitoring segment were shipped to the U.S. Department of Energy, U.S. Department of Defense, and nuclear power plants.
How do you block antenna radiation?
Radiation from an antenna can be blocked by using a simple sheet of conducting material. Aluminum foil would work. But you'd have to set things up so whatever it is you are shielding is completely in the electromagnetic shadow of the antenna. Metal screen would work, too, but you'd have to make some calculations as regards the frequency of the radiation you wish to block and the size of the openings in the screen. You can see the items in your microwave heating up, but the radiation can't get out. Same principle.
Explain the basic principle of working of radio?
Radio is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space.
An example of a man made source of radiation is?
diagnostic radiation
What has the author Gerhard Lutz written?
Gerhard Lutz has written: 'Sem1conductor radiation detectors' -- subject(s): Semiconductor nuclear counters 'Semiconductor Radiation Detectors' -- subject(s): Semiconductor nuclear counters
What are 3 major types of radiation detectors?
Geiger-Muller counters: These detect ionizing radiation using a gas-filled tube that produces an electrical pulse when radiation is present. Scintillation detectors: These use a scintillating material to convert incoming radiation into flashes of light, which are then detected and measured. Solid-state detectors: These use semiconductor materials to directly convert incoming radiation into electrical signals for detection and measurement.
What radiation is easily detected?
Gamma radiation is easily detected because it has a high energy level and can penetrate through materials, making it detectable by radiation detectors. Gamma radiation is commonly used in various detection devices such as Geiger-Muller counters and scintillation detectors.
What has the author Alan H Krulisch written?
Alan H. Krulisch has written: 'Pulse height and transient response of semiconductor radiation detectors to fission fragments'
What is radiation detector?
A radiation detector is a device used to identify and measure ionizing radiation, such as alpha particles, beta particles, gamma rays, and X-rays. These detectors convert the energy from radiation interactions into measurable signals, often in the form of electrical pulses. Common types of radiation detectors include Geiger-Müller counters, scintillation detectors, and semiconductor detectors, each suited for specific applications in fields like health physics, nuclear safety, and environmental monitoring. They play a crucial role in ensuring safety and compliance in environments where radiation exposure may occur.
What can detect wavelengths of light found in the infrared range of the electromagnetic spectrum?
Infrared detectors are commonly used to detect wavelengths in the infrared range of the electromagnetic spectrum. They can be made using various technologies, such as thermopiles, pyroelectric detectors, and semiconductor-based detectors like InSb or HgCdTe detectors. These detectors convert infrared radiation into an electrical signal that can be analyzed or used for various applications.
Why is radiation detection important?
There are a number of reasons that radiation detection is important. The primary one has to do with exposure to radiation by radiation workers and others. If we have the proper detection equipment and use it appropriately, we know what's going on radiation wise and can plan accordingly. That will allow us to keep folks from getting zapped excessively, and that's very important to everyone concerned. It's for sure that we need radiation detectors around nuclear reactors to aid in early warnings that something is wrong. Any place that works with nuclear materials better have detectors operating.We also use radiation detection equipment to find "hot spots" and locate things we need to get bagged and tagged. There are still some sites where some radioactive materials have gotten "loose" and need to be recovered. In the lab, we need to identify different types of radiation and the energies associated with it, and this will let us identify which radioisotopes are emitting the radiation. This is good stuff to know if an investigator is attempting to find out what materials or substances are in a sample.There are a number of other uses for radiation detection equipment, but the primary ones have to do with protecting people who work with radioactive materials, and with having detectors at entrances and exits to nuclear facilities to prevent nuclear materials from coming in or going out. As an aside, but directly related, a worker in a facility that had nuclear materials in it set off detectors when he was coming in to work. These detectors were working properly, and it was determined in follow up investigations that the individual was being exposed to radon at home! It was a nice catch by the nuclear monitoring team.
What is used to detect gamma rays?
Scintillation detectors, semiconductor detectors, and Geiger-Muller tubes are commonly used to detect gamma rays. These detectors work by measuring the ionizing radiation produced when gamma rays interact with matter.
Is the radiation in smoke detectors harmful?
The radiation in smoke detectors, usually in the form of ionizing radiation from americium-241, is very low and not harmful to humans under normal conditions. The radiation level from smoke detectors is well within safety limits set by regulatory agencies.
What is the principle of semiconductor laser?
Semiconductor lasers are diodes which are electrically pumped. Recombination of electrons and holes created by the applied current introduces optical gain. Reflection from the ends of the crystal form an optical resonator, although the resonator can be external to the semiconductor in some designs.
Principle of counting technigue geiger muller counter?
The principle of a Geiger-Muller counter is based on detecting ionizing radiation by counting the number of electrical pulses produced when radiation interacts with a gas inside the detector. The ionizing radiation creates ion pairs in the gas, which are then accelerated by an electric field, resulting in a measurable pulse of current that is counted and used to determine the level of radiation. This technique allows for the detection of various types of ionizing radiation, such as alpha, beta, and gamma radiation.
What is the flash of light produced in a crystal or phosphorus when it absorbs ionizing radiation?
The flash of light produced in a crystal or phosphorus when it absorbs ionizing radiation is known as scintillation. This phenomenon occurs because the incoming radiation excites the material's atoms, causing them to emit light as they return to their ground state. Scintillation detectors are commonly used in radiation detection and measurement applications.
