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Questions and Answers
What is the total sensitive area associated with the nuclei in the face area of the foil?
What is the total sensitive area associated with the nuclei in the face area of the foil?
- nσdx
- ndxAσ (correct)
- ndxσ
- ndx/A
What is the unit of microscopic cross section?
What is the unit of microscopic cross section?
- barn (b) (correct)
- mb
- cm^2
- nm^2
What is the total cross section σtot equal to?
What is the total cross section σtot equal to?
- The product of n and σ
- The sum of the particle cross sections σ1, σ2, … (correct)
- The ratio of the particle cross sections σ1, σ2, …
- The difference of the particle cross sections σ1, σ2, …
What is the fractional sensitive area f in terms of the number of nuclei per unit volume, the cross-sectional area, and the thickness of the foil?
What is the fractional sensitive area f in terms of the number of nuclei per unit volume, the cross-sectional area, and the thickness of the foil?
What is the macroscopic cross section Σ equal to?
What is the macroscopic cross section Σ equal to?
What is the change in intensity of the beam as it passes through the foil?
What is the change in intensity of the beam as it passes through the foil?
What is the reaction rate (RR) defined as?
What is the reaction rate (RR) defined as?
What is the significance of the negative sign in the equation f = -dI/I?
What is the significance of the negative sign in the equation f = -dI/I?
What is the assumption about the thickness of the foil in the derivation of the equation?
What is the assumption about the thickness of the foil in the derivation of the equation?
What is the absorption coefficient α equal to in an absorption-type reaction?
What is the absorption coefficient α equal to in an absorption-type reaction?
What is the formula for the intensity I of the beam after it has passed through a foil of thickness x?
What is the formula for the intensity I of the beam after it has passed through a foil of thickness x?
What is the condition applied to equation (4-7) to obtain the final solution?
What is the condition applied to equation (4-7) to obtain the final solution?
What is the formula to calculate the reduced mass of the incident particle and the target nucleus?
What is the formula to calculate the reduced mass of the incident particle and the target nucleus?
What is the threshold energy for the reaction 19F(n, p)19O?
What is the threshold energy for the reaction 19F(n, p)19O?
What is the Q-value of the reaction 19F(n, p)19O?
What is the Q-value of the reaction 19F(n, p)19O?
What is the minimum energy needed for an endoergic reaction to take place?
What is the minimum energy needed for an endoergic reaction to take place?
What is the probability of a single incident particle interacting with an individual target nucleus?
What is the probability of a single incident particle interacting with an individual target nucleus?
Why do not all incident particles produce nuclear reactions?
Why do not all incident particles produce nuclear reactions?
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