Argonne PowerPoint Presentation - Spallation Neutron Source

More documents

Recommendations

Info

$Powder Diffraction - Spallation Neutron Source$

$Single Crystal Diffraction - Spallation Neutron Source$

Some History: The Materials Testing Accelerator E. O. Lawrence conceived this project in the late 1940s as a means to produce Pu-239 and tritium and, later, U-233. Despite its name, MTA was never intended for materials research. Work went on at the site of the present Lawrence Livermore Laboratory, where scientists accomplished substantial high-power accelerator developments. Efforts continued until 1955 when intense exploration efforts revealed large uranium ore reserves in the U.S. and the project terminated. By that time the pre-accelerator had delivered CW proton currents of 100 mA and 30 mA of deuterons. The work was declassified in 1957. 2000-05265 uc/arb 22
History The Materials Testing Accelerator: Machine Parameters There was already by that time some information on the production of spallation neutrons by 190-MeV deuteron-induced spallation on Uranium, about 30% more than by protons of the same energy. This guided the choice of accelerated particle type and beam energy. With the anticipated required production rate, the parameters of the accelerator were set: – Deuterons. – Particle energy – 500 MeV. – CW operation – 320 mA (beam power 160 MW). 2000-05266 uc/arb 23
Page 1 and 2: Neutron Sources for Materials Resea
Page 3 and 4: Neutrons and Neutron Sources-cont
Page 5 and 6: How do we produce neutrons? Fission
Page 7 and 8: Neutrons: Where do they come from?
Page 9 and 10: Neutrons: Where do they come from?
Page 11 and 12: Types of Neutron Sources The Instit
Page 13 and 14: Types of Neutron Sources-cont’d L
Page 15 and 16: How Do Moderators Work? Steady sour
Page 17 and 18: How Do Moderators Work? Pulsed sour
Page 19 and 20: Spallation-Evaporation Production o
Page 21: Types of Neutron Sources-cont’d P
Page 25 and 26: MTA-cont’d Cutaway View of Linear
Page 27 and 28: Pulsed Spallation Neutron Source Co
Page 29 and 30: The Spallation Neutron Source The
Page 31 and 32: SNS Moderator Intensities and Pulse
Page 33: End of Presentation Thank you! 33

Argonne PowerPoint Presentation - Spallation Neutron Source

Create successful ePaper yourself

Delete template?

Save as template?