Industrial placement report

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Industrial placement report

Soon after the discovery of X-rays, radioactivity was discovered. By using radioactive sources such as radiumfar higher photon energies could be obtained than those from normal X-ray generators.

Soon these found various applications, with one of the earliest users being Loughborough College. After World War II new isotopes such as caesiumiridium and cobalt became available for industrial radiography, and the use of radium and radon decreased.

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Industrial placement report

Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. April Inspection of products[ edit ] A portable wireless controlled battery powered X-ray generator for use in non-destructive testing and security. Gamma radiation sources, most commonly iridium and cobalt, are used to inspect a variety of materials.

The vast majority of radiography concerns the testing and grading of welds on pressurized piping, pressure vessels, high-capacity storage containers, pipelines, and some structural welds.

Other tested materials include concrete locating rebar or conduitwelder's test couponsmachined parts, plate metal, or pipewall locating anomalies due to corrosion or mechanical damage.

Non-metal components such as ceramics used in the aerospace industries are also regularly tested. Theoretically, industrial radiographers could radiograph any solid, flat material walls, ceilings, floors, square or rectangular containers or any hollow cylindrical or spherical object.

Inspection of welds[ edit ] The beam of radiation must be directed to the middle of the section under examination and must be normal to the material surface at that point, except in special Industrial placement report where known defects are best revealed by a different alignment of the beam.

The specimen to be inspected is placed between the source of radiation and the detecting device, usually the film in a light tight holder or cassette, and the radiation Industrial placement report allowed to penetrate the part for the required length of time to be adequately recorded.

The result is a two-dimensional projection of the part onto the film, producing a latent image of varying densities according to the amount of radiation reaching each area. It is known as a radio graph, as distinct from a photograph produced by light.

Because film is cumulative in its response the exposure increasing as it absorbs more radiationrelatively weak radiation can be detected by prolonging the exposure until the film can record an image that will be visible after development.

The radiograph is examined as a negativewithout printing as a positive as in photography.

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This is because, in printing, some of the detail is always lost and no useful purpose is served. Before commencing a radiographic examination, it is always advisable to examine the component with one's own eyes, to eliminate any possible external defects.

If the surface of a weld is too irregular, it may be desirable to grind it to obtain a smooth finish, but this is likely to be limited to those cases in which the surface irregularities which will be visible on the radio graph may make detecting internal defects difficult.

After this visual examination, the operator will have a clear idea of the possibilities of access to the two faces of the weld, which is important both for the setting up of the equipment and for the choice of the most appropriate technique.

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Defects such as delaminations and planar cracks are difficult to detect using radiography, particularly to the untrained eye. Without overlooking the negatives of radiographic inspection, Radiography does hold many significant benefits over ultrasonics, particularly insomuch that as a 'picture' is produced keeping a semi permanent record for the life cycle of the film, more accurate identification of the defect can be made, and by more interpreters.

Very important as most construction standards permit some level of defect acceptance, depending on the type and size of the defect. To the trained Radiographer, subtle variations in visible film density provide the technician the ability to not only accurately locate a defect, but identify its type, size and location; an interpretation that can be physically reviewed and confirmed by others, possibly eliminating the need for expensive and unnecessary repairs.

Industrial placement report

For purposes of inspection, including weld inspectionthere exist several exposure arrangements. This exposure is created when the radiographer places the source of radiation at the center of a sphere, cone, or cylinder including tanks, vessels, and piping.

Depending upon client requirements, the radiographer would then place film cassettes on the outside of the surface to be examined.

This exposure arrangement is nearly ideal — when properly arranged and exposed, all portions of all exposed film will be of the same approximate density.

It also has the advantage of taking less time than other arrangements since the source must only penetrate the total wall thickness WT once and must only travel the radius of the inspection item, not its full diameter.

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The major disadvantage of the panoramic is that it may be impractical to reach the center of the item enclosed pipe or the source may be too weak to perform in this arrangement large vessels or tanks. The source does not come in direct contact with the item, but is placed a distance away, depending on client requirements.

The third is an exterior placement with similar characteristics. The fourth is reserved for flat objects, such as plate metal, and is also radiographed without the source coming in direct contact with the item.

In each case, the radiographic film is located on the opposite side of the inspection item from the source. In all four cases, only one wall is exposed, and only one wall is viewed on the radiograph.

Of the other exposure arrangements, only the contact shot has the source located on the inspection item. This type of radiograph exposes both walls, but only resolves the image on the wall nearest the film.Admissions.

Home Step 2: Placement After you are admitted and have your student number, it’s time to get placed! Factors like whether or not you have taken college courses before will determine where you are placed within your Bucks program.

LPU conducts placement drives for the students to provide better job opportunities and get one of the best pay packages. LPU has become a preferred destination for companies to hire quality students, companies: WIPRO, ITC and other MNCs revisited the campus for the placement of students.

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LPU conducts placement drives for the students to provide better job opportunities and get one of the best pay packages. LPU has become a preferred destination for companies to hire quality students, companies: WIPRO, ITC and other MNCs revisited the campus for the placement of students.

About SIOR Report* SIOR's dynamic quarterly magazine addresses the concerns of industrial and office real estate practitioners. Articles by industry experts focus on topics from the evolving paradigm in commercial real estate brokerage to effectively managing offices and technology.

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