Difference between revisions of "SeRun 02-13-17"
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[[PAA_Selenium#SeRun_02-13-17]] | [[PAA_Selenium#SeRun_02-13-17]] | ||
| + | =Irradiation Data= | ||
| − | + | Accelerator was on for 8 hours and turned off at 4:02 pm | |
| − | |||
| + | Here are the specifications on the soil and selenium targets | ||
| + | [[Target Prep February 2017]] | ||
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| + | |||
| + | [[Feb_2017_Runlist]] | ||
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| + | =Simulations= | ||
| + | ==Selenium Irradiation Setup for MCNP simulations:== | ||
| + | [[File:SeSetup.jpg | 400 px]] | ||
| + | |||
| + | ==Flux== | ||
MCNP results for photon flux through the samples (electron beam energy is 21 MeV, energy bins are 100 keV, selenium density is 4.2 g/cc, selenium sample is cylindrical, 2 cm in diameter, 2 cm in height): | MCNP results for photon flux through the samples (electron beam energy is 21 MeV, energy bins are 100 keV, selenium density is 4.2 g/cc, selenium sample is cylindrical, 2 cm in diameter, 2 cm in height): | ||
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| − | =Production rate in 1 gram of natural Se (or natural Ni) | + | The selenium disk has a diameter of 0.5 cm and a thickness of about 2 mm |
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| + | [[File:PhFl.jpg| 400 px]] | ||
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| + | ==Cross-sections for various reactions (adopted from TALYS):== | ||
| + | [[File:CS.jpg | 400 px]] | ||
| + | |||
| + | ==Production rate (1/sec) in 1 gram of natural Se (or natural Ni) assuming 22 MeV 1 microA current== | ||
{| border="3" cellpadding="5" cellspacing="0" | {| border="3" cellpadding="5" cellspacing="0" | ||
| || Tube 1 || Tube 2 || Tube 3 || Tube 4 | | || Tube 1 || Tube 2 || Tube 3 || Tube 4 | ||
|- | |- | ||
| − | | Ni-57 || | + | | Ni-57 || 1.8x10^5 || 3.4x10^4 || 5.5x10^3 || 6.0x10^3 |
|- | |- | ||
| − | | Se-79 || | + | | Se-79 || 1.5x10^6 || 2.7x10^5 || 6.2x10^4 || 6.0x10^4 |
|- | |- | ||
| − | | Se-75 || | + | | Se-75 || 1.2x10^6 || 2.3x10^5 || 4.6x10^4 || 4.6x10^4 |
|- | |- | ||
| − | | Se-80 || | + | | Se-80 || 1.4x10^6 || 2.4x10^5 || 5.9x10^4 || 5.6x10^4 |
|} | |} | ||
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| + | ==Yields of Ni-57 and some selenium isotopes assuming 22 MeV 1 microA current:== | ||
| + | [[File:1.jpg | 400 px]] | ||
| + | [[File:2.jpg | 400 px]] | ||
| + | [[File:3.jpg | 400 px]] | ||
| + | [[File:4.jpg | 400 px]] | ||
| + | |||
| + | [[PAA_Selenium#SeRun_02-13-17]] | ||
Latest revision as of 19:10, 18 April 2017
Irradiation Data
Accelerator was on for 8 hours and turned off at 4:02 pm
Here are the specifications on the soil and selenium targets
Simulations
Selenium Irradiation Setup for MCNP simulations:
Flux
MCNP results for photon flux through the samples (electron beam energy is 21 MeV, energy bins are 100 keV, selenium density is 4.2 g/cc, selenium sample is cylindrical, 2 cm in diameter, 2 cm in height):
The selenium disk has a diameter of 0.5 cm and a thickness of about 2 mm
Cross-sections for various reactions (adopted from TALYS):
Production rate (1/sec) in 1 gram of natural Se (or natural Ni) assuming 22 MeV 1 microA current
| Tube 1 | Tube 2 | Tube 3 | Tube 4 | |
| Ni-57 | 1.8x10^5 | 3.4x10^4 | 5.5x10^3 | 6.0x10^3 |
| Se-79 | 1.5x10^6 | 2.7x10^5 | 6.2x10^4 | 6.0x10^4 |
| Se-75 | 1.2x10^6 | 2.3x10^5 | 4.6x10^4 | 4.6x10^4 |
| Se-80 | 1.4x10^6 | 2.4x10^5 | 5.9x10^4 | 5.6x10^4 |
Yields of Ni-57 and some selenium isotopes assuming 22 MeV 1 microA current:
