A Mathematical Realization of Entropy through Neutron Slowing Down
نویسندگان
چکیده
Abstract: The slowing down equation for elastic scattering of neutrons in an infinite homogeneous medium is solved analytically by decomposing the neutron energy spectrum into collision intervals. Since scattering physically smooths energy distributions by redistributing neutron energy uniformly, it is informative to observe how mathematics accommodates the scattering process, which increases entropy through disorder.
منابع مشابه
Using Zirconium Borohydride as Neutron Shield in LINAC head
Introduction: One of the concerns about using of high energy photons in radiotherapy is neutron contamination production. The threshold energy of photoneutron production in most materials with high atomic number is about 7MeV. Therefore, it seems to be logical that the main components with high atomic number elements used in the LINAC head have a large contribution to the neutr...
متن کاملMeasurements with the high flux lead slowing-down spectrometer at LANL
A Lead Slowing-Down Spectrometer (LSDS) was recently installed at LANL [D. Rochman, R.C. Haight, J.M. O’Donnell, A. Michaudon, S.A. Wender, D.J. Vieira, E.M. Bond, T.A. Bredeweg, A. Kronenberg, J.B. Wilhelmy, T. Ethvignot, T. Granier, M. Petit, Y. Danon, Characteristics of a lead slowing-down spectrometer coupled to the LANSCE accelerator, Nucl. Instr. and Meth. A 550 (2005) 397]. The LSDS is c...
متن کاملSlow Relaxation due to Entropy Effect – Entropic Slowing Down –
We study entropic slowing down in a decorated bond system. Though it is commonly known that complicate energy landscape in random spin systems causes slow relaxations, we find that the slowing down also appears due to an entropic effect even if the energy barrier between the stable and the metastable states is very small. The concept of the entropic slowing down is proposed by using a decorated...
متن کاملRecent Developments in Nuclear Data Measurement capabilities at the Gaerttner LINAC Center at RPI
The Gaerttner LINAC Center at RPI uses a 60 MeV electron linear accelerator to produce short pulses of neutrons with duration of 5-5000 ns. The main research thrust at the Center is nuclear data for nuclear reactors and criticality safety applications. The Center includes several setups for time-of-flight measurements including neutron transmission, capture and scattering detectors, and a lead ...
متن کاملPrecise Validation of Neutron Cross Section Data Bases Using a Lead Slowing down Spectrometer and Simulation from 0.1 Ev to 40 Kev. Methodology and Data on Thin and Thick Targets and Data Bases Adjustement
Research on accelerator driven systems (ADS), related new fuels and their ability for nuclear waste incineration has led to a revival of interest in nuclear cross sections of many nuclides over a large energy range. Discrepancies observed between nuclear data bases require new measurements in several cases. A complete measurement of such cross sections including resonance resolution consists of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2018