تقرير
Borghini's Mechanism for Dynamic Polarization in Polarized Targets
| العنوان: | Borghini's Mechanism for Dynamic Polarization in Polarized Targets |
|---|---|
| المؤلفون: | de Boer, Wim |
| سنة النشر: | 2015 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Instrumentation and Detectors |
| الوصف: | This paper is a contribution to the memorial session for Michel Borghini at the Spin 2014 conference in Bejing, honoring his pivotal role for the development of polarized targets in high energy physics. Borghini proposed for the first time the correct mechanism for dynamic polarization in polarized targets using organic materials doped with free radicals. In these amorphous materials the spin levels are broadened by spin-spin interactions and g-factor anisotropy, which allows a high dynamic polarization of nuclei by cooling of the spin-spin interaction reservoir. In this contribution I summarize the experimental evidence for this mechanism. These pertinent experiments were done at CERN in the years 1971 - 1974, when I was a graduate student under the guidance of Michel Borghini. I finish by shortly describing how Borghini's spin temperature theory is now applied in cancer therapy. Comment: Contributed paper to the 21st International Symposium on Spin Physics, October 20-24, 2014, Beijing, China |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1509.06052 |
| رقم الأكسشن: | edsarx.1509.06052 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |