D. Ho
Carnegie Mellon University
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Publication
Featured researches published by D. Ho.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2016
M. Lowry; Christopher Bass; A. D׳angelo; A. Deur; G. Dezern; C. Hanretty; D. Ho; T. Kageya; D. Kashy; M. Khandaker; V. Laine; T. O’Connell; O. Pastor; P. Peng; A. M. Sandorfi; D. Sokhan; X. Wei; M. Zarecky
The design, fabrication, operation, and performance of a 3/4He dilution refrigerator and superconducting magnet system for holding a frozen-spin polarized hydrogen deuteride target in the Jefferson Laboratory CLAS detector during photon beam running is reported. The device operates both vertically (for target loading) and horizontally (for target bombardment). The device proves capable of maintaining a base temperature of 50 mK and a holding field of 1 T for extended periods. These characteristics enabled multi-month polarization lifetimes for frozen spin HD targets having proton polarization of up to 50% and deuteron up to 27%.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2014
Christopher Bass; Christopher M. Bade; M. Blecher; A. Caracappa; A. D'Angelo; A. Deur; G. Dezern; Harald Glueckler; C. Hanretty; D. Ho; A. Honig; Tsuneo Kageya; M. Khandaker; V. Laine; F. Lincoln; Michael M. Lowry; J. Mahon; T. O'Connell; M. Pap; P. Peng; B. Preedom; A. M. Sandorfi; H. Seyfarth; H. Stroeher; Craig E. Thorn; Xiangdong Wei; C.S. Whisnant