scholarly journals Prediction of radiation degradation of Si detectors irradiated by relativistic ions of different masses

2021 ◽  
Vol 2103 (1) ◽  
pp. 012068
Author(s):  
D Mitina ◽  
E Verbitskaya ◽  
I Eremin ◽  
N Fadeeva
Keyword(s):  
Energy Range ◽  
Total Energy ◽  
Radiation Damage ◽  
Silicon Material ◽  
Radiation Degradation

Abstract The presented paper is focused around radiation damage of silicon material under the different ions irradiation. The ion total energy range is 0.7 GeV for 7Li to 208 GeV for 208Pb. The results of TRIM modeling for the set of six ions are presented. The extracted information about vacancy production allows making first assumptions of the Si degradation dependence on mass and energy of the incident ion.

Study of the reaction e+e−→p in the total energy range 1925–2180 MeV

1979 ◽  
Vol 86 (3-4) ◽  
pp. 395-398 ◽  
Author(s):  
B. Delcourt ◽  
I. Derado ◽  
J.L. Bertrand ◽  
D. Bisello ◽  
J.C. Bizot ◽  
...  
Keyword(s):  
Energy Range ◽  
Total Energy

scholarly journals The computation of Fermi-Dirac functions

1938 ◽  
Vol 237 (773) ◽  
pp. 67-104 ◽  
Keyword(s):  
Energy Distribution ◽  
Energy Range ◽  
Total Energy ◽  
Variational Equation ◽  
Statistical Treatment ◽  
Unit Energy ◽  
Boltzmann Statistics ◽  
Number Of Particles

The quantitative application of Fermi-Dirac statistics involves the evaluation of certain integrals which have not previously been tabulated. In this paper, tables are given of the values of the basic integrals most frequently required , with a view to placing Fermi-Dirrac statistics on as firm a numerical basis as is Maxwell-Boltzmann statistics. T e expression for the energy distribution of particles subject to Fermi-Dirrac statistics may be written in the form dN He) de e<*+Pe -)-1 ’ wherev(e) is the number of states per unit energy range, and dN is the number of particles in the energy range e to e--de. In the statistical treatment, the parameters ot and fi, which are usually introduced as undetermined multipliers in a variational equation, are to be determined from two equations expressing conditions imposed by the total number of particles, and the total energy of the system. By linking up the statistical and thermodynamical treatments, interpretation can be given to a and b this is expressed by P**:l IkT, a = -C lk T ,

Study of the reaction e+e− → KS0KL0 in the total energy range 1.4–2.18 GeV and interpretation of the K+ and K0 form factors

1981 ◽  
Vol 99 (3) ◽  
pp. 261-264 ◽  
Author(s):  
F. Mané ◽  
D. Bisello ◽  
J.-C. Bizot ◽  
J. Buon ◽  
A. Cordier ◽  
...  
Keyword(s):  
Energy Range ◽  
Total Energy ◽  
Form Factors

scholarly journals Differential Scanning Calorimetry of Metamict Pu-Substituted Zirconolite

1982 ◽  
Vol 15 ◽  
Author(s):  
Dean E. Peterson ◽  
Frank W. Clinard
Keyword(s):  
Activation Energy ◽  
Differential Scanning Calorimetry ◽  
Ambient Temperature ◽  
Total Energy ◽  
Temperature Dependence ◽  
Radiation Damage ◽  
Rate Constant ◽  
Stored Energy ◽  
Scanning Calorimetry ◽  
No Release

ABSTRACTSamples of CaPuTi2O7 were prepared by cold pressing and sintering. Plutonium was substituted for zirconium in order to characterize radiation damage effects. The energy stored in a sample which had reached saturation in swelling after storage at ambient temperature was measured with a differential scanning calorimeter. The total energy of 6.6±0.1 cal/g is released over the range 485–715° C. The activation energy of annealing of the damage is 1.22±0.05 eV. The temperature dependence of the rate constant is described by kT= 5.96E4 exp(−1.22/kBT) s−1 where kB and T are the Boltzmann's constant and temperature(K) respectively. A sample stored at 600°C was similarly evaluated and showed no release of stored energy to the precision of the apparatus (±0.1 cal/g). These results are applied to analysis of waste incorporation in Synroc and are correlated with analogous parameters for other materials.

Magnetospheric Multiscale (MMS) Observations of ULF Waves and Correlated Low-Energy IonMonoenergetic Acceleration

2020 ◽  
Author(s):  
Bin Li
Keyword(s):  
Energy Range ◽  
Total Energy ◽  
Minimum Energy ◽  
Low Energy ◽  
Ulf Waves ◽  
Ion Energy ◽  
Magnetospheric Multiscale ◽  
Terrestrial Magnetosphere ◽  
Plasma Investigation ◽  
Positively Charged

&lt;div&gt;Low&amp;#8208;energy ions of ionospheric origin with energies below 10s of electron volt dominate most&lt;/div&gt;&lt;div&gt;of the volume and mass of the terrestrial magnetosphere. However, sunlit spacecraft often become&lt;/div&gt;&lt;div&gt;positively charged to several 10s of volts, which prevents low&amp;#8208;energy ions from reaching the particle&lt;/div&gt;&lt;div&gt;detectors on the spacecraft. Magnetospheric Multiscale spacecraft (MMS) observations show that&lt;/div&gt;&lt;div&gt;ultralow&amp;#8208;frequency (ULF) waves drive low&amp;#8208;energy ions to drift in the E &amp;#215; B direction with a drift velocity&lt;/div&gt;&lt;div&gt;equal to VE&amp;#215;B, and low&amp;#8208;energy ions were accelerated to suffificient total energy to be measured by the&lt;/div&gt;&lt;div&gt;MMS/Fast Plasma Investigation Dual Ion Spectrometers. The maximum low&amp;#8208;energy ion energy flflux peak&lt;/div&gt;&lt;div&gt;seen in MMS1's dual ion spectrometer measurements agreed well with the theoretical calculation of H+ ion&lt;/div&gt;&lt;div&gt;E &amp;#215; B drift energy. The density of ions in the energy range below minimum energy threshold was&lt;/div&gt;&lt;div&gt;between 1 and 3 cm&amp;#8722;3 in the magnetosphere subsolar region in this event.&lt;/div&gt;

Study of the reaction e+e− → K+K− in the total energy range 1400–2060 MeV

1981 ◽  
Vol 99 (3) ◽  
pp. 257-260 ◽  
Author(s):  
B. Delcourt ◽  
D. Bisello ◽  
J.-C. Bizot ◽  
J. Buon ◽  
A. Cordier ◽  
...  
Keyword(s):  
Energy Range ◽  
Total Energy
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