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تسجيل مستخدم جديدإنتاج أشعة الذرات النادرة المسيطرة بالدوران
Production of spin-controlled rare isotope beams
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تُشكِّلُ درجة الحرية الدورانية في النظم الكوانتومية بمثابة مختبر غير مشابه حيث يمكن ملاحظة الخصائص الفيزيائية الكوانتومية المثيرة للاهتمام، والقدرة على التحكم في الدوران هي أداة قوية في البحث الفيزيائي. نقترح طريقة جديدة للتحكم في الدوران في نظام الأحصائيات النادرة التي تستفيد من آلية التفرُّع الصاروخي مع التقنية التوزيع الحزمي. تم التحقق من الطريقة الحالية في تجربة في مصنع جسيمات ريكن ري بيم فاكتوري، حيث تم الحصول على درجة توحيد 8٪ لدوران الأحصائية النادرة أل-32. وتم العثور على معيار الحصول على الطريقة الحالية أكبر من الطريقة التقليدية بضعف أكثر من 50.
The degree of freedom of spin in quantum systems serves as an unparalleled laboratory where intriguing quantum physical properties can be observed, and the ability to control spin is a powerful tool in physics research. We propose a novel method for controlling spin in a system of rare isotopes which takes advantage of the mechanism of the projectile fragmentation reaction combined with the momentum-dispersion matching technique. The present method was verified in an experiment at the RIKEN RI Beam Factory, in which a degree of alignment of 8% was achieved for the spin of a rare isotope Al-32. The figure of merit for the present method was found to be greater than that of the conventional method by a factor of more than 50.
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