Description Of The Hpge Gamma Ray Spectrometer

One of Wilkins’ most talked about achievements was the development of radiation shielding against gamma radiation, emitted during electron decay of the Sun and other nuclear sources. He developed mathematical models by which the amount of gamma radiation absorbed by a given material can be calculated. This technique of calculating radiative absorption is widely used among researchers in space and nuclear science

1900 – Gamma-rays were first observed when French chemist Paul Villard was investigating radium radiation. Villard observed that a photographic sheet was affected by radioactive materials when it was shielded by lead and iron. The radiation showed no magnetic deflection. The term gamma ray was coned from Ernest Rutherford several years later in 1903. Gamma-rays are

This is due to the fact that the time resolution of the plastic scintillator detectors (5~ns) is

Part A shows how limited the range of the Spectronic 20 spectrometer is. It did not measure transmittances below 400 nm or above 575 nm. This means the light source emitted those wavelengths of light so weakly they were not detected by the instrument.

Thanks to him, the university received Canada’s first betatron in 1948. The betatron made use of magnets to speed up electrons to an energy level of 25-million electron volts. This created powerful X-rays that had the ability to be used for cancer treatment, however extensive usage of the machine was impossible due to the fact that it was too costly, and the X-rays it composed weren't always powerful enough to reach tumors that were deep inside of the

Due to the risks that can occur from high radiation levels, a backup plan has been developed in the case of high radiation levels. To start, at the start of the project a Geiger Counter will be purchased in order to keep track of all the radiation and determine whether the radiation ever reaches unsafe levels.

Gamma radiation has 0 charges and 0 atomic mass and atomic number. It has a very high penetrating power than alpha and beta because it does not stop for many centimetres. The ionising power of gamma radiation is very low according to alpha and beta radiation. It is used to treat cancer and testing equipment; however it can be very dangerous for human health if it comes in contact with

Every isotope that is created through this accelerator is different and unique. Each particle is exposed to a different amount of magnetic field and for how much time. The different amounts of radiation help to solve different medical conditions as well as produce different kinds of solutions for the diagnosis that an individual might

A gamma camera takes pictures as the radioactive food moves through your stomach. The camera detects the gamma rays emitted from the food. A computer then produces pictures and measurements of your

Its gamma ray energy of about 140 keV is convenient for detection. The fact that both its physical half-life and its biological half-life are very short leads to very fast clearing from the body after an imaging process. The help that the scan provides using technetium 99m easily out ways the risks in its use. Technetium 99m is inserted into the body through an injection or iv (inter-vascular). It then breaks up in the body via gamma radiation, it builds up where there is an increased flow in blood which indicates a disease. Or in areas of abnormality. This build up is detected by a gamma camera and then a scan is produced imaging a physical image ready to be examined or viewed. Some specific benefits include low gamma radiation, short half-life (approximately 6 hours), a minute harm to the body, and the ease and flow in the time it takes to pass through the body. Overuse of this radioisotope could lead to cancer or other abnormalities to the brain or

As far back as my memory allows me to recall I’ve always lived in the simply small town of Gurdon, Arkansas. Lacking in many of things including a grocery store, it is not necessarily difficult to assume the town is dull just by the looks of the uninhabited streets running through the heart of the city. Luckily with my seventeen years of being a local, I am able to understand that these false accusations just scrape the surface of the deeper aspects that actually make the town that I’m proud to call home so rare. Searching all the things that define Gurdon as home to everyone that has lived here, the Gurdon Light outweighed the others with my own experiences.

The Articles an amazing story about how NASA has been searching for plant life on the land surface and in the oceans. Kate Ramsayer, at NASA's Goddard Space Flight Center, the author of this article, open with "an eye-catching” truthful statement, she states that NASA satellites can see “our living Earth breathe.” Ramsayer pointed out, the satellite has been observing the Northern Hemisphere ecosystems “wake up in the spring, taking in carbon dioxide and exhaling oxygen as they sprout leaves.” Along with other satellites being able to see the “newly green vegetation” grown.

During the Atomic line emission lab assignment, my results came out pretty accurate. During the 5th lab it was very fatiguing to determine what the colors were that I had seen. Basically there was a large amount of red. As I went down the line there was a decrease of the rest of the colors, meaning there was more of the red than any other color. As a group we realized this lab emission was a lot like Ge or Germanium based on the spectrum. The first Lab we saw that it was a lot similar to Ce which was Cerium, it is very common to Germanium. With both labs five and 1, you had all the colors except there was no green or violet. Ge had every color except for violet. Our eyes are sensitive to different wavelengths of visible light and we see these

Geiger was joined by Ernest Marsden to create a new instrument to detect whether alpha particles could be deflected at greater angles. This device was different from the previous in the way that the gold foil and radium were both inside a metal cylinder, which was fixed to a swivel. The microscope attached penetrated the wall of the cylinder. The lens of the microscope was covered in a zinc sulphide screen and the microscope could be moved in a full circle around the foil so Geiger could tally the flashes of light from every possible angle. He observed alpha particles deflecting by as much as 150°.

Gas sensor technology is very appreciating in industries and defense since it possesses high sensitivity in gas detection. The most important challenges in transportable devices are sensitivity, selectivity, durability and low power consumption. To solve the selectivity problems, GBISs have been introduced. These latter are able to identify unknown gas’ ionization breakdown voltage. To reduce the breakdown voltage CNT-GBISs are employed [6]- [12] while others studies used MWCNT with a reduction of 100-450V.Nevertheless, these CNT-GBISs are exposed to corona discharges which lead to heat generation and may affect the gas ionization breakdown. For uniform fields, the breakdown characteristics are explained by Townsend's criteria (equ 1) [1].