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No. A GM tube only counts the ionizing events that happen to interact with it. Consider that a radioactive source radiates in 360 degrees, in three axes, to form a three dimensional sphere of radiation. The GM tube intersects only part of that sphere and, even for the the parts that do intersect, its not always a direct intersection, so there is not always a capture of an event that registers on the tube. This is why we talk about calibration geometry and efficiency.
What else can I help you with?
Does radiation rise?
No, radiation does not rise. Radiation can travel in all directions from its source, with its behavior dependent on the type of radiation and the surrounding environment.
What are some naturally occurring ways we receive radiation?
I assume you mean ionizing electromagnetic radiation. Cathode ray tube televisions (i.e. the non-flatscreen televisions) and some other electric devices produce some radiation. While it might sound pretty excessive all these sources add up to a very small amount of radiation. About 2.4 mSv. Most additional radiation people receive are from medical imaging methods such as a CT-scan (20 mSv)
Do all molecules absorb infrared radiation?
No, not all molecules absorb infrared radiation. Only molecules with specific molecular vibrations that match the energy of infrared radiation can absorb it. These vibrations involve changes in dipole moment or stretching/bending of bonds.
Which layer of the atmosphere does not absorb solar radiation?
Troposphere does not absorb solar radiation. All other layers do not absorb.
What do all of the different forms of electromagnetic radiation together make up?
All forms of electromagnetic radiation make up the electromagnetic spectrum. This includes visible light, radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays. Each type of radiation has a different wavelength and energy level.
How do you use the geiger muller tube to test for alpha?
Do you want to verify that a radioactive source emits ONLY alpha particles? If so, first measure the original count-rate, with no radioactive source, on the GM-tube. This is the background count-rate. Next, place the radioactive source near the GM-tube, and measure the new count-rate. Place a thin piece of paper between the GM-tube and the source. You will see that the count-rate dropped to the background count-rate. This is because all of the alpha particles are absorbed by the paper. If there were other types of radiation, like beta and gamma radiation, the count-rate wouldn't drop to the background count-rate.
What specific body part should the Geiger counter be placed on so the radiation can be detected in the body of an affected person?
The Geiger counter should be placed close to the location of the potential exposure to detect radiation in the affected person's body. This could include scanning areas such as hands, feet, or other body parts that were in contact with the radiation source. Additionally, a whole-body scan can also be conducted to ensure that all areas of the body are checked for radiation exposure.
What are the methods of detecting nuclear radiation?
Radiation energetic enough to ionize matter with which it collides is called Ionizing Radiation. The Geiger counter is a radiation detection device that makes use of ionizing radiation in its operation. This device is also used to measure the amount of radiation.
Why should gamma rays be detected at a point within the Geiger-Muller tube rather that at the end of it?
Let's look at the construction of the tube. The Geiger-Müller (GM) tube is essentially a cylinder with a "wire" down the middle for an anode, and the inside of the cylindrical housing as the cathode. It's got some gas in it, and the type of gas will vary a bit from tube to tube and what is desired in the design. The "end" has a "window" in it made of thin glass or possibly mica. This window "lets in" the radiation while sealing the tube and providing a minimum amount of shielding that might "block" radiation, particularly alpha and beta radiation. Recall that alpha particles are helium-4 nuclei, and they can't penetrate a sheet of paper. Beta particles are high energy electrons, or possibly positrons, which can be stopped by a sheet of aluminum foil. You can't detect them if you block them. The way it works is as the radiation passes through the GM tube, it leaves an ionized "trail" in the gas behind it. This is primary ionization. The high voltage across the gas causes the ions to be accelerated toward the appropriately charged element. Positive charges move toward the cathode, and negative charges (electrons) move toward the anode. The movement of these charges ionizes other gas atoms, called secondary ionization, and the total effect is to create a current avalanche. With the movement of these charges and the accompanying current "spike" or "jolt" set off by the high voltage, we'll observe a "pulse" that the supporting circuitry in the detector can "see" and a "hit" or "count" is recorded by the Geiger counter. Gamma rays are penetrating types of (electromagnetic) radiation. They blast through the window and they ionize the heck out of the gas inside. It is basically the cumulative effect of all this ionization that creates sufficient ions to initiate the current avalanche that cause the counter to "pulse" electrically. The gamma rays have a field day zapping their way through the cylinder and creating lots ions to create a "click" or a count. In contrast, alpha and beta particles will not penetrate very far into the tube because of their limited ability to do so. This means that the current avalanche is more confined to the "front" of the tube. The superior penetrating power of the gamma rays means that their current avalanche includes a lot of volume deeper in the tube, or more "in the middle" than at the end of the tube, like the particulate radiation. Links can be found below for more information.
Does it matter if aluminum absorbers are near a Geiger-Muller detector when you have a radioactive source of beta particles?
It does if you want to detect the beta radiation. Beta radiation, beta particles, can be stopped with a sheet of aluminum foil. An aluminum "absorber" would act as a shield to the Geiger-Müller (GM) detector and stop the beta radiation, which is really high energy electrons or possibly positrons. Placing a shield between the source of the beta radiation and the GM detector would block the radiation, thus shielding the detector from it. The detector would be "blind" to the radiation. Note that this would be effective if all you wanted to do was look at gamma rays. The gamma rays and the beta radiation would leave the source and head to the GM detector, the beta particles would be blocked by the aluminum, and only the gamma rays would make it to the GM tube to be counted. Links can be found below.
Are radioactive rays visible?
No, all forms of radiation cannot be classed as "visible" as they are too small to be seen by the human eye. However, Alpha, Beta and Gamma radiation can be seen experimentally using various methods.
Which radiation detector is independent of particle A- wilson cloud chamber B- GM tube C- solid state detector D- all?
The Wilson Chamber has the radiation independent of the particle. This is a particle detector used for detecting ionizing radiation.
Was Emily Geiger married?
Emily Geiger did not marry Teddy Geiger at all, im sure of that. She married John Threewits.
Where do nuclear decay occur naturally?
Radioactive Decay occurs naturally all around us. If you test for radiation with a Geiger Counter, you will find that it picks up radiation in the air around you. Mostly, however, radioactive decay occurs in the earth's crust. I cannot name a specific element, as there are many that decay.
How can you tell if a substance is radioactive?
With a geiger counter. It can detect radioactive particles. That is the most common, modern way. In Ernest Rutherford's 'Gold Foil' Experiment, he visible saw radioactive particles by using a sheet of Zinc Sulfide that lit up when it was hit by an alpha particle (form of radiation).
What causes the development of the geiger counter?
Necessity is the mother of all inventions.
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