تأثیر پارامترهای الکتریکی دستگاه‌های پلاسمای کانونی نوع مَدِر بر انرژی پرتو ایکس سخت

نوع مقاله: مقاله پژوهشی

نویسندگان

1 پژوهشکده‌ی فیزیک پلاسما و گداخت هسته‌ای، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی،

2 گروه فیزیک و بیوفیزیک، واحد علوم پزشکی تهران

چکیده

در این مقاله پس از مروری بر تاریخچه­‌ی دستگاه‌­های پلاسمای کانونی، موضوع کانونی شدن پلاسما مطرح،  و در پی آن دو دستگاه جدید پلاسمای کانونی نوع مَدِر و نتایج پژوهشی حاصل از مقایسه­‌ی آن­ها معرفی می­‌شوند. هدف اصلی این پژوهش، بررسی چگونگی تأثیر ظرفیت بانک خازنی C0  و القائیدگی مدار L0 ، بر انرژی پرتو ایکس سخت گسیل شده از دستگاه­‌های پلاسمای کانونی نوع مَدِر بوده است. این پژوهش نشان داد که تـأثیر کاهش ضریب  رادیکال L0C0 بر افزایش انرژی پرتو ایکس سخت، به مراتب بیش­تر از تأثیر ناشی از تغییر انرژی تخلیه است، به نحوی که با وجود کاهش 55% انرژی تخلیه، کاهش40%  مقدار  رادیکال L0C0 باعث افزایش 227% انرژی پرتو ایکس سخت شده است. به بیان دیگر، در طراحی دستگاه‌­های پلاسمای کانونی نوع مَدِر، باید توجه داشت که گسیل پرتو ایکس سخت با انرژی بیش­تر، الزاماً مترادف با مصرف انرژی تخلیه­‌ی بیش­تر نیست.

کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Electrical Parameters of Mather Type Plasma Focus Devices on Energy of the Hard X-Ray Yield

نویسندگان [English]

  • M. A Tafreshi 1
  • D Rostamifard 1
  • A Nasiri 1
  • T D. Mahabadi 2
چکیده [English]

In this paper, after reviewing the history of plasma focus devices, the plasma focusing issue is raised and then the results of comparisons between two new Mather type plasma focus devices are presented. The main aim of this investigation was to study the effect of the energy bank capacitance , and the circuit inductance , on the energy of the hard X-ray of Mather type devices. This invetigation showed that the effect of the  reduction, on the increment of the hard X-ray energy, is much more than the effect of the discharge energy variation. That is, in spite of 55% discharge energy decrement, a 40% reduction of the , leads to 227% increment of the hard X-ray energy. That is observed in a Mather type device designing. It should be mentioned that the more energy consumption is not a neccesary condition for a more energetic hard X-ray emission.

کلیدواژه‌ها [English]

  • Plasma Focus
  • Mather Type
  • Hard X-Ray
  • Speed Factor

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