نوع مقاله : مقاله فنی

نویسنده

گروه فیزیک، دانشکده علوم پایه، واحد نراق، دانشگاه آزاد اسلامی، صندوق پستی: 37961-58719، نراق - ایران

چکیده

در این پژوهش مقادیر انرژی جنبشی کل (TKE) پاره‌­های شکافت نوترونی ایزوتوپ‌­های پلوتونیوم با کمک مدل نقطه برشی محاسبه شده­‌اند. نتایج به ­دست آمده با نتایج تجربی مقایسه شده تا پارامترهای موردنیاز در مدل نقطه برشی به­ دست آیند. بدین­ منظور، انرژی جنبشی کل پاره­‌های شکافت Pu39، Pu241 و Pu242 که دارای مقادیر تجربی هستند، بررسی شده‌­اند. مقادیر انرژی جنبشی کل پاره­‌های شکافت دیگر ایزوتوپ‌­های پلوتونیوم با کمک مقادیر پارامترهای به ­دست آمده در مدل نقطه برشی حدس زده شده‌­اند. با کمک نتایج پارامترهای تغییر شکل پاره­‌های شکافت به‌ دست آمده، متوسط انرژی جنبشی کل پاره­‌های شکافت سایر بقیه ایزوتوپ­‌های پلوتونیوم محاسبه شده است. بیش‌­ترین مقدار متوسط انرژی جنبشی کل پاره‌­های شکافت برای ایزوتوپ­‌های پلوتونیوم در حدود MeV 185 است.

کلیدواژه‌ها

عنوان مقاله [English]

Calculation of the total kinetic energy distributions for neutron fission of plutonium isotopes

نویسنده [English]

  • M. Jamiati

Department of Physics, Faculty of Basic Sciences, Naragh Branch, Islamic Azad University, P.O. Box: 58719-37961, Naragh - Iran

چکیده [English]

In the present study, the total kinetic energy (TKE) values of neutron fission fragments of plutonium isotopes were calculated using the scission point model. The deformation parameters were obtained for neutron fission of plutonium 239, 241, and 242 by comparing the calculated results with experiments in the scission point model. TKE values were evaluated for neutron fission of other plutonium isotopes with these deformation parameters. Using the results of the fission deformation parameters, the average kinetic energy of all neutron fission fragments for the rest of the plutonium isotopes is calculated. The maximum average kinetic energy of all neutron fission fragments for plutonium isotopes is 185 MeV.

کلیدواژه‌ها [English]

  • Total kinetic energy
  • scission point model
  • neutron fission
  • Energy distribution of fission fragments
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