2012_research:cosmic_spartans
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| 3. Sources of concrete - we will need to assume that the sources are similar for buildings built around the same time but can't be sure of this without records of suppliers of concrete. Different sources may use different formulations of concrete with different amount of potassium in the mix. | 3. Sources of concrete - we will need to assume that the sources are similar for buildings built around the same time but can't be sure of this without records of suppliers of concrete. Different sources may use different formulations of concrete with different amount of potassium in the mix. | ||
| 4. Orientation of detector: We are setting it vertical so majority of rays are coming in from wall rather than from directly above due to cosmic rays. | 4. Orientation of detector: We are setting it vertical so majority of rays are coming in from wall rather than from directly above due to cosmic rays. | ||
| - | 5. | + | 5. References for amount of radiation due to concrete: PBS site refers to 70 microsieverts per year and and the normal amount annually is approximately 3.65 millisievert so the dose is relatively low. (1 sievert = 100 rem which are both measurement units) |
| + | http://www.pbs.org/wnet/need-to-know/the-daily-need/how-much-radiation-is-too-much-a-handy-guide/8124/ | ||
| + | 6. What type of detector we are using and will it be able to detect beta decay. These cosmic detectors where built mainly for cosmic rays and not beta decay but research said that scintillators should pick up beta decay also. | ||
| + | 7. Take a measurement away from concrete walls like in middle of the football field or field outside of campus. | ||
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