Difference between revisions of "Se170063"

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=Activity=
 
=Activity=
Using to constant value from above and the standard equation for radioactive decay, the initial activity of the Se sample, Assuming a 20 minute delay between beam off and taking data is 0.1838 +\- 0.0189 nCi
+
Using to constant value from above and the standard equation for radioactive decay, the initial activity of the Se sample, Assuming a 20+/- 2 minute delay between beam off and taking data is 0.1838 +\- 0.0189 nCi
  
 
=Runlist=
 
=Runlist=

Revision as of 19:08, 11 September 2017

PAA_Selenium/Soil_Experiments#Selenium_Sample_Analysis

Sample Description

The sample was placed in an aluminum cylinder that was to be irradiated. The target components consisted of a nickel foil on the front of the cylinder with 2 pure selenium pellets under the foil, but still outside the cylinder. Inside the target there was burnt sagebrush ash, which was burned with a blowtorch, and selenium. Below are the masses of the components

Nickel Foil: 0.2783g

Outer Se Pellets: 0.0971g

Sage Ash: 0.5111g

Inner Se Pellets: 0.0523g

Energy

LB May Calibration 2017

The Calibration for Detector A was done on the morning of 5/23/17 with the MPA software using the thorium rods (as the calibration was fairly close already) and the correction values were found to be Det A Intercept = -12.208800 slope =1.021270

Halflife

Using the program /data/IAC/Se/May2017/5_25_2017/MPA.C, which is based off of Dr. Forest's analysis program, I was able to make a plot for the half life of the pure selenium sample, which is shown below.

170063 PureSeSample HalfLife.png

The decay constant from the fit gives a half life of 59.14 +/- 0.6560 Minutes

Efficiency

Nickel Information

Activity

Using to constant value from above and the standard equation for radioactive decay, the initial activity of the Se sample, Assuming a 20+/- 2 minute delay between beam off and taking data is 0.1838 +\- 0.0189 nCi

Runlist

Table with dates and filename and locations on daq1

LB_May_2017_Irradiation_Day#10.25_Se_Soil_Mix

PAA_Selenium/Soil_Experiments#Selenium_Sample_Analysis