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CHAPTER 1 D. All the above 1. In the early years of Radiography, what caused personnel to be overexposed? A. Poor equipment design B. Lack of understanding C. Lack of and poor safety practices D. All the above D. Late in 1898 2. In what year did Marie Curie discover Radium? A. T...

what particles make up particulate radiation Beta (e-) and alpha partciles atomic mass-atomic number= number of neutrons what is the atomic mass neutrons plus protons ( A number) what is the atomic number number of protons (Z number) what are the two types of gamma so...

High speed electrons are introduced from the cathode and strike the anode within a vacuum sealed envelope X-radiation is produced when a supply of particulate and electromagnetic What are the two basic types of ionizing radiation? at the speed of light without regard to pressure, tem...

Overexposures to personnel can result in what? - Cancer - Genetic defects carried into further generations - Death T or F: All radiation exposures are equally serious and can result in death. False When ionizing radiation passes through the entire body, damage can occur to what? -...

In the early years of radiography, what caused personnel to be overexposed? A. poor equipment design B. Lack of understanding C. A lack of and poor safety practices D. All of the above D. All of the Above The ultimate responsibility to adhere to the regulations, license conditions, and c...

52. A radiation area is defined as "an area accessible to individuals, in which they could receive R. 2 mR/h (20 uSv/h) b. 5 (50 uSv/h) c. 50 mR/h (500 uSv/h) d. 100 mR/h (1000 uSv/h) b. 5 (50 uSv/h) 53. A high radiation area is defined as "an area accessible to individuals, in which t...

Specific emission Constant for Co60 is? 14R/Hr/ci @ 1ft Specific emission Constant for Ir192 is? 5.2 R/Hr/ci @ 1ft What is the Half Life for Ir192? 74 days What is the Half life for co60 ? 5.3 years In the beginning of Radiography, Wilhelm Conrad Rontgen scientist won...

Registered Retirement Savings Plan (RRSP) Investment vehicle where investor can contribute without being taxed on investment income or capital gains. Contributions are tax deductible Money borrowed to invest is not tax deductible. Withdrawals are taxable at marginal tax rate Contributions ...

Types of income 1. Employment (taxed on gross receipt basis) 2. Capital/Property Income (stocks, bonds, mutual funds.. dividends and interest) 3. Business Income (from rendered services) 4. Capital gains and losses Calculating Income Tax Payable On first 43,561 x 15% On portion over 43,...

As a source is retracted into the shielded position from a collimated exposure, the survey meter measurement should? Increase, then decrease The term used to express the number of curies of radioactivity per unit of source weight is? Specific Activity The best means to reduce exposur...

Radiation absorbed does (rad) In 1956, the rad was established to measure the amount of radiation absorbed by a medium. Radiation dose The amount of radiation absorbed by the tissue. The dose is always less than the exposure. Dose affected by intensity of exposure, duration of exposure, and...

Who discovered X-Rays? Wilhelm Rontgen Who discovered radioactivity? Henri Bequerel Who coined the name "Radioactivity?" Marie & Pierre Curie Who discovered alpha particles, beta particles, and gamma rays? Ernest Rutherford In early radiography, what was the limit t...

Particulate Radiation Particles that have a mass, a charge, and emit radiation. Ex: Alpha & Beta particles Electromagnetic Radiation Has no mass, no charge, and emits radiation. Ex: Gamma Rays & X-Rays How fast does wavelike radiation travel? The speed of light; 186,000 miles/sec ...

1. The radiographer's main responsibility is to: implement safety procedures. One cause of overexposures is: making proper radiation surveys. Who discovered X-rays? Wilhelm Roentgen in 1895 Who discovered radioactivity? Pierre Curie When were X-rays discovered? Nove...