Characteristics of Be(,n) Neutron Sources

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Questions and Answers

Which type of radiation is emitted following beta decay?

  • Neutrons
  • Ultraviolet rays
  • Alpha rays
  • Annihilation radiation (correct)

What type of radiation is Bremsstrahlung, also known as braking radiation?

  • Gamma rays
  • X-rays (correct)
  • Neutrons
  • Alpha rays

Which type of radiation is commonly emitted following nuclear reactions?

  • Characteristic X rays (correct)
  • Beta rays
  • Alpha rays
  • Synchrotron Radiation

What is the typical half-life of the parent decay process before gamma emission?

<p>Centuries (B)</p> Signup and view all the answers

Which of the following isotopes are common gamma ray laboratory sources?

<p>^22Na, ^57Co, ^60Co, ^137Cs (B)</p> Signup and view all the answers

What type of radiation is generated when energetic electrons bend in a circular orbit?

<p>Synchrotron radiation (B)</p> Signup and view all the answers

Which heavy metals have a probability of spontaneous fission?

<p>Transuranic heavy metals (B)</p> Signup and view all the answers

What is the most common source for neutron generation that decays by spontaneous fission?

<p>^252Cf (B)</p> Signup and view all the answers

In the scheme of spontaneous fission of ^252Cf, what is released as a product?

<p>Neutrons (D)</p> Signup and view all the answers

Which type of source is preferred if a choice is available, according to the text?

<p>^241Am/Be (B)</p> Signup and view all the answers

What is the primary factor for choosing a neutron source according to the text?

<p>Half-life (A)</p> Signup and view all the answers

What is the main factor affecting the strength of a neutron source?

<p>The activity of the alpha emitter (D)</p> Signup and view all the answers

What is an actinide-beryllium alloy sealed within in a neutron source?

<p>Stainless steel cylinders (B)</p> Signup and view all the answers

In which type of reactions do monoenergetic neutrons come from monoenergetic gamma rays?

<p>(Gamma-neutron) reactions (B)</p> Signup and view all the answers

What is needed to produce neutrons of relatively high intensity in photoneutron sources?

<p>High gamma activity (D)</p> Signup and view all the answers

Which element contaminates 239Pu to increase neutron yield in certain cases?

<p>241Am (D)</p> Signup and view all the answers

What type of decay causes an exponential decrease in neutron yield with the half-life of an alpha emitter?

<p>Alpha decay (B)</p> Signup and view all the answers

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