Imakethe Yamabala YaseChina - Izinto Ezingajwayelekile ZikaMazibuthe Zomhlaba Ikhotheshini Yansuku zonke, Njengereferensi!
▌Isifinyezo Semakethe
I-Pr-Nd Alloy
- Ububanzi Bamanje: 543,000 - 547,000
- Isitayela senani: Iqinile ngokuguquguquka okuncane
Ingxubevange ye-Dy-Fe
- Ububanzi Bamanje: 1,630,000 - 1,650,000
- Isitayela senani: Isidingo esiqinile sisekela umfutho ophakeme
Ama-Superconducting Magnets ku-MRI: Precision & Innovation (izinhlamvu ezingu-598)
Izikena zesimanje ze-MRI zithembele kumakhoyili e-niobium-titanium (NbTi) superconducting apholile nge-helium ewuketshezi ukuze akhiqize amasimu angu-1.5-7T. Intuthuko ebalulekile:
- I-homogeneity yensimu: Amakhoyili acwebezelayo asebenzayo alungile ukuchezuka okungu-≤0.5ppm kusetshenziswa imephu yesikhathi sangempela ye-B₀ (TR=2ms)
- Cisha ukuphathwa: Ama-valve okusiza ukucindezela kwezigaba eziningi achitha amandla angu-15MJ kuma-0.3s ngesikhathi sokwehluleka kwekhoyili
- I-Cryogenics: Ama-cryocoolers omjikelezo ovaliwe agcina u-4.2K nokuvuza okushisayo <10⁻⁶ W/㎡
Amabhentshimakhi okusebenza:
- Amakhoyili e-Nb₃Sn: Zuza i-21T @ 15K (Brookhaven Lab 2024), inika amandla i-MRI ephezulu kakhulu
- Amasistimu we-Zero-boiloff: Gcina i-helium engu-1500L iminyaka engu-10+ ngesiqandisi kazibuthe (ubuchwepheshe obususelwa ku-NASA)
- Isithombe esiqhutshwa yi-AI: Ukufunda okujulile kwakha kabusha 0.5mm切片图像 kusuka ku-50% yedatha eluhlaza (缩短扫描时间42%)
Icala lemboni: Isistimu ye-Siemens' 7T Terra yehlisa umsindo we-acoustic ukuya ku-85dB (vs. 110dB常规MRI) ngokukhanselwa kokudlidliza okusebenzayo, okuthuthukisa ukunethezeka kwesiguli.
Isikhathi sokuthumela: Mar-18-2025
