BRA Pre Lab and Evaluation
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BRA Pre Lab and Evaluation
Student's name ______________________________________________________________
Partner's Name ______________________________________________________________
Pre-lab Discussion Questions
It is your responsibility to discuss this lab with an instructor before your first day of your scheduled lab period. This signed sheet must be included as the first page of your report. Without it you will lose grade points. You should be prepared to discuss at least the following before you come to lab:
Watch the Beta Ray & Error Analysis video with these questions at hand.
- What are Beta Rays? How are they produced?
- How is radioactive decay related to nuclear binding energy?
- What is the half-life of Cs137 and what are the decay modes of this nucleus? Sketch the two beta-decay distributions of Cs137. Qualitatively explain their general shapes and relative sizes. Indicate the maximum energy of each distribution
- What is the "internal conversion process" and how does atomic electronic binding play a role in the electron's final kinetic energy?
- What is a Fermi-Kurie plot, and why do you need to use it ?
- What does the Beta-ray spectrometer measure, and how does it measure it?
- Identify and describe the operation of each of the pieces of experimental apparatus: source, coils, preamp, amp, SCA, etc.
Staff Signature ______________________________________________ Date ____________
Completed on the first day of lab? (circle) Yes / No
Mid-lab Questions
On day 2 of this lab, you should have taken several quick spectra and determined an appropriate setting of the discriminator’s baseline parameter. Demonstrate and show the spectra to an instructor and ask for a signature.
Staff Signature ______________________________________________ Date ____________
Completed by the second day of lab? (circle) Yes / No
INCLUDE THIS SHEET AS THE FIRST PAGE OF YOUR REPORT
Physics 111 Advanced Lab Student Evaluation of Experiment
Now that you have completed this experiment, we would appreciate your comments. Please take a few moments to answer the questions below, and feel free to add any other comments. Since you have just finished the experiment it is your critique that will be the most helpful. Your thoughts and suggestions will help to change the lab and improve the experiments. Please be as specific as possible, using both sides of the paper as needed, and turn this in with your report. Thank you!
Experiment name:____________________________________________ Date: ________________________
How was the write-up for this experiment? How could it be improved?
How easily did you get started with the experiment? What sources of information were most/least helpful in getting started? Were the reprints appropriate? Did the Pre-lab discussion help? Did you need to go outside the course materials for assistance? What additional materials could you have used?
What did you like and/or dislike about the experiment?
Did you like the WIKI or does it need improvement? How?
Would you recommend this lab to fellow student? Why or why not?
What advice would you give to a friend just starting this experiment?
Did you get this write up from the 111-Lab WEB site or a copy. ____________________________
How would you rate the Physics 111- Lab WEB sites? (1 = poor; 5 = good.)
1 2 3 4 5
Comments:
| Please circle the abbreviations of the other labs you have done. | Overall quality of this experiment? | ||||||||||
| ATM | BMC | BRA | COM | CO2 | GMA | HAL | 1 2 3 4 5 | ||||
| HOL | JOS | LIF | LLS | MNO | MOT | MUO | Poor Average Good | ||||
| NMR | NLD | OPT | OTZ | RUT | SHE | XRA | |||||
Thank you from the 111-Lab Staff
