Difference between revisions of "Cf-252 FTC-CFZ-431"
Jump to navigation
Jump to search
| Line 7: | Line 7: | ||
4.2 <math>\mu g</math> would generate <math>9.67 \times 10^{6}</math> neutrons per second. The discrepancy between these two numbers gives a 2% error. | 4.2 <math>\mu g</math> would generate <math>9.67 \times 10^{6}</math> neutrons per second. The discrepancy between these two numbers gives a 2% error. | ||
| + | =Calculation= | ||
Click [[Cf-252 rates table|here]] to open a table giving neutron rates and C-252 activity from dates 1/2017 to 12/2029. This calculation only includes neutrons from Cf-252, since all other daughter nuclei and possible impurities have a very low SF rate compared to Cf-252. | Click [[Cf-252 rates table|here]] to open a table giving neutron rates and C-252 activity from dates 1/2017 to 12/2029. This calculation only includes neutrons from Cf-252, since all other daughter nuclei and possible impurities have a very low SF rate compared to Cf-252. | ||
| + | |||
| + | |||
| + | |||
| + | Formula used for neutron rate: | ||
| + | <math>(9.835\times10^6\times(0.5)^(\frac{(year-1993)+\frac{month-3}{12}}{2.645})</math> | ||
[[2nCor 44|Go back]] | [[2nCor 44|Go back]] | ||
Revision as of 00:52, 28 December 2016
Overview
An official document for the CF-252 source with serial number FTC-CFZ-431 provides a value for the neutron rate and CF-252 mass as of 03/19/1993.
The initial neutron rate and mass of cf-252 are stated to be and 4.2, respectively.
4.2 would generate neutrons per second. The discrepancy between these two numbers gives a 2% error.
Calculation
Click here to open a table giving neutron rates and C-252 activity from dates 1/2017 to 12/2029. This calculation only includes neutrons from Cf-252, since all other daughter nuclei and possible impurities have a very low SF rate compared to Cf-252.
Formula used for neutron rate: