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POLARIZED TARGET UPDATE

POLARIZED TARGET UPDATE. D. G. Crabb UVA. Refrigerator. UVA fridge and JLab Fridge clones Both leaked badly (from the same place) after ~20 years of operation New fridge (actually canabalized ) put together at UVA. Tested and works like it used to. Similar work at Jlab .

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POLARIZED TARGET UPDATE

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  1. POLARIZED TARGET UPDATE D. G. Crabb UVA

  2. Refrigerator • UVA fridge and JLab Fridge clones • Both leaked badly (from the same place) after ~20 years of operation • New fridge (actually canabalized) put together at UVA. Tested and works like it used to. • Similar work at Jlab.

  3. NH3 from NIST Irradiation (2009)

  4. NH3 (same material)

  5. NH3 (2nd Batch)

  6. NH3 Inventory According to our inventory Fresh 14NH3on hand from Irradiations from 7/09 and 10/09 is about 10 -12 target loads. More exists from previous experiments but may not get to 90%.

  7. NIST Irradiations • MOU between NIST and UVA now needed for irradiations. • Currently in the hands of NIST lawyers. • Then NIST --> UVA lawyers  NIST lawyers  UVA lawyers and so on ! • Only a few people can sign on behalf of the University and I’m not one of them! • Technical Issues • Maybe a change in procedure due to e- + 40A  p + 39Cl (12.6 MeV threshold)

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