Publications
Publication Information
| Title | A New Solid Polarized Target for CLAS12 in Hall B |
| Authors | James Maxwell |
| JLAB number | JLAB-PHY-16-2466 |
| LANL number | (None) |
| Other number | DOE/OR/23177-5843 |
| Document Type(s) | (Meeting) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Meeting Invited Talk Paper compiled for SPIN2016 | |
| Publication Abstract: | With Jefferson Lab's upgrade to a 12 GeV electron beam comes a new, improved detector system in Hall B: CLAS12. The dynamically polarized solid target, which was a mainstay of double-polarized scattering experiments in the 6 GeV era, must also be replaced, accommodating the constraints of the new Hall B layout. The new target and its horizontal refrigerator will fit in a space restricted by the new CLAS12 5T solenoid and detector package, making the center of the target sit within a narrow clearance that tapers from 30 to 10 cm in diameter over a length of 2.3 m. The target will dynamically polarize NH3 and/or ND3 in two target cells at 5T and 1K using 140 GHz microwaves, and will provide protons and deuterons polarized to above 90% and 40%, respectively. We present the proposed design of the new polarized target system for Hall B, and discuss the progress and challenges of the project. |
| Experiment Numbers: | |
| Group: | Cryo/Polarized Targets |
| Document: | |
| DOI: | |
| Accepted Manuscript: | Maxwell_Spin16_proc.pdf |
| Supporting Documents: | |
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