Curie ci - Study guides, Class notes & Summaries

IRRSP Test Questions Xray NDT/NDE questions with answers 2023Specific emission Constant for Co60 is? - correct answer 14R/Hr/ci @ 1ft Specific emission Constant for Ir192 is? - correct answer 5.2 R/Hr/ci @ 1ft What is the Half Life for Ir192? - correct answer 74 days What is the Half life for co60 ? - correct answer 5.3 years In the beginning of Radiography, Wilhelm Conrad Rontgen scientist won the Nobel prize and how did he get to do this ? - correct answer in 1896 while investi...

In the early years of radiography, what caused personnel to be overexposed? - Answer Poor equipment design, lack of understanding, lack of and poor safety practices. In what year did Marie Curie discover radium? - Answer Late 1898 Who coined the term radioactivity? - Answer Marie and Pierre Curie In the early years of radiography from 1920-1930, the maximum thickness that could be inspected via X-radiation was of steel? - Answer 3" (7.62 cm) Historically, it has been proven that th...

Nuclides with the same atomic number but different numbers of neutrons are called? -ANSWER Isotopes Two nuclides with the same atomic numbers are called? -ANSWER Isobars Two nuclides with the same number of neutrons but different atomic numbers are called? -ANSWER Isotones What is a radionuclide? -ANSWER A nuclide that emits particular or photon energy to achieve a more stable energy state Another name for a helium ion containing two protons and two neutrons is? -ANSWER an alpha part...

A specific gamma ray constant can be stated as: - a. dose rate per curie at a specific distance At a dose rate of 60 mRh/ (600 uSv/h), 1 h of exposure would be? - d. 60 mR (600 uSv) If the radiographer has 100 mR/h at 25 ft (1000 uSv at 7.63 m), the exposure rate at 50 ft (15.24 m) would be ____________ with 1 half- value layer of shielding between the radiographer and the source. - b. 12.5 mR per hour If you have 73 Ci of Co-60, your exposure rate at 2 ft (0.6 m) from the source would be? ...

The radiation dose or amount of radiation that has been absorbed by a substance. Measured in rads (grays). - Answer absorbed dose The process whereby the particles or photons in a beam of radiation are reduced in number or energy as they pass through a medium. - Answer absorption The process of bombarding stable atoms with neutrons to make them radioactive. - Answer activation The activity of a radioisotope is the number of disintegrations that occur for a given quantity of the radiois...

IRRSP Questions and answers 2023 updatedWhat Gamma Source is 0.21-0.61 MeV? - correct answer Ir192 MeV? Ir192 number of Rays? - correct answer What gamma source has 12 rays? Co60 MeV ? - correct answer What gamma source produces 1.17 &1.33 MeV? Selenium 75 MeV ? - correct answer What gamma source produces 0.066 & 0.612 MeV? What is Selenium 75 steel penetrating power in inches? - correct answer What gamma source penetrates up to 1" of steel? How much steel does Ir 192 penetrate...

RADIATION STATE Card Exam 2023 with Correct Solutions 100% A curie is a unit of: *ANS* Activity The radiation dose may be reduced by: *ANS* Moving farther from the source What must the operator do before each survey? *ANS* Perform a radiation survey Gamma rays have a shorter wavelength than light and heat; therefore they are: *ANS* Very penetrating What living person is most sensitive to radiation? *ANS* An unborn child All operators should be familiar with their operating and ...

Test Bank For Radiologic Science for Technologists 12th EditionReview of Basic Physics ELECTROSTATICS 1. The addition or removal of electrons is called electrification. 2. Like charges repel; unlike charges attract. 3. Coulomb’s law of electrostatic force: R4 R3 R1 R2 R1 R2 R3 R4 *v, Initial velocity; v′, Final velocity. 4. Only negative charges can move in solids. 5. Electrostatic charge is distributed on the outer surface of conductors. 6. The concentration of charge is greate...

Test Bank For Radiologic Science for Technologists 12th EditionReview of Basic Physics ELECTROSTATICS 1. The addition or removal of electrons is called electrification. 2. Like charges repel; unlike charges attract. 3. Coulomb’s law of electrostatic force: R4 R3 R1 R2 R1 R2 R3 R4 *v, Initial velocity; v′, Final velocity. 4. Only negative charges can move in solids. 5. Electrostatic charge is distributed on the outer surface of conductors. 6. The concentration of charge is greate...

RADIOGRAPHIC IMAGING AND EXPOSURE EXAM QUEASTIONS AND ANSWERS 300+ QUESTIONS WITH DETAILED SOLUTIONS 1. Who discovered x-rays and in what year? how did they discover them - ANSWER William Conrad Roentgen, 1895. Working with a low-vacuum "Crookes Tube" and discovered x-rays by accident. 2. Energy - ANSWER the ability to do work 3. X-rays are part of the ___ energy scale - ANSWER Electromagnetic 4. Three factors that determine whether or not an x-ray can m...