Target Prep February 2017

There will be 4 targets that will be placed in the beam. Each sample of the selenium pellets had to be under 0.5g to meet waste restrictions. The 4 samples are as follows: one empty aluminum cylinder, one aluminum cylinder with only soil, one aluminum cylinder with a 50% ratio of soil to selenium, and one aluminum cylinder with a 10% ratio of soil to selenium. The selenium targets were prepared by measuring the mass of the sample, then putting a front nickel foil and a back nickel foil around the selenium pellets and wrapping the whole target in Kapton tape. The mass of an empty cylinder is 32.65g

Selenium Target 1	Mass (g)
Front Ni Foil	0.27
Rear Ni Foil	0.25
Se Mass	0.46
Mass of Kapton	0.54
Total Mass	1.52
Soil Mass	0.46

Selenium Target 2	Mass (g)
Front Ni Foil	0.23
Rear Ni Foil	0.26
Se Mass	0.49
Mass of Kapton	0.65
Total Mass	1.62
Soil Mass	4.8

Target 3 is an empty cylinder with mass 32.65g

Target 4	Mass (g)
Soil Mass	109.78

To make the 50% ratio sample, use 0.46g of soil in the aluminum cylinder with Se Target 1

To make the 10% ratio sample, use 4.8g of soil in the aluminum cylinder with Se Target 2