[PDF] Top 20 A motivação para o exercício
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Fission Fragment characterization with FALSTAFF at NFS
... induced fission of 238 U, the neutrons being generated by the breakup of deuterons on a carbon ...For NFS [1], the LINAG will accelerate deuteron and proton beams to produce ...The NFS facility is ... See full document
6
Studies of fission fragment yields via high-resolution γ-ray spectroscopy
... each fragment, and the precision time-of-flight (TOF) over the flight path for each ...[6], FALSTAFF [7] and VERDI ...case fission rates of a few per second seems feasible at the highest neutron ... See full document
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Recent developments of the FALSTAFF experimental setup
... nuclear fission is encountering renewed interest with the devel- opment of GEN-IV reactor concepts, mostly working in the neutron fast energy ...(Licorne, NFS, nELBE, ...called FALSTAFF for a ... See full document
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Influence of asymmetry and fissility on even-odd effect in fission-fragment yields
... the fragment distribution, the even-odd staggering was found to be negative, revealing a higher probability for the unpaired nucleon to end up in the heavy ...induced fission of 237 Np [13], and 242m Am ... See full document
35
The GEF model: Assessment of fission-fragment properties over an extended region
... various fission observables has become more and more urgent for nuclear application purposes, but also for large-scale simulations in nuclear astrophysics as well as for guid- ing the development of purely ... See full document
7
The SOFIA experiment: Measurement of 236U fission fragment yields in inverse kinematics
... Abstract. The SOFIA (Studies On FIssion with Aladin) experiment aims at measuring fission-fragments isotopic yields with high accuracy using inverse kinematics at relativis- tic energies. This experimental ... See full document
12
Dependence of Fission-Fragment Properties On Excitation Energy For Neutron-Rich Actinides
... Abstract. Experimental access to full isotopic fragment distributions is very important to determine the features of the fission process. However, the isotopic identification of fission fragments has been, in the ... See full document
9
Sensitivity studies of spin cut-off models on fission fragment observables
... Abstract. A fission fragment de-excitation code, FIFRELIN, is being developed at CEA Cadarache. It allows probing the characteristics of the prompt emitted particles, neutrons and gammas, during the de-excitation ... See full document
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Influence of primary fragment excitation energy and spin distributions on fission observables
... eral models involved in the excitation energy sharing and spin-parity assignment between primary fission fragments. In a first step the parameters used in the FIFRELIN Monte Carlo code “reference route" are ... See full document
5
Batch NFS
... 2.2. NFS: the number-field sieve (1993). NFS applies the same idea, but instead of congruences modulo N it uses congruences modulo a related algebraic number m − ...Specifically, NFS chooses a ... See full document
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Sub-barrier resonance fission and its effects on fission fragment properties, exemplified on 234,238U(n,f)
... for fission with sub-barrier effects also extended to take into account the multi-modal ...the fission fragments and the prompt neutrons obtained by averaging the Point-by-Point results as a function of ... See full document
12
Systematic measurements of prompt fission γ rays – and what they tell us about fission fragment de-excitation
... nuclear fission is distributed in kinetic and excitation energy of the two ...in fragment deformation and intrinsic excitation ...prompt fission γ-ray multiplicity, ...per fission, amounts ... See full document
5
Applications of Event-by-Event Fission Modeling with FREYA
... Abstract. The recently developed code FREYA (Fission Reaction Event Yield Algo- rithm) generates large samples of complete fission events, consisting of two receding product nuclei as well as a number of ... See full document
12
Measurement of the ROT effect in the neutron induced fission of 235U in the 0.3 eV resonance at a hot source of polarized neutrons
... the fission channel. For the thermal (or cold) neutron induced fission (where all previous data are obtained), there is a mixture of several spin states, and the weights of these states are not ... See full document
6
Effects of fissioning nuclei distributions on fragment mass distributions for high energy fission
... that fission probabilities are much higher for nuclei with masses above A ≈ 230, and decreases very fast as A decreases below 230(see, for instance, ...for fission even after the emission of several ... See full document
13
Fission Fragment Angular Distribution measurements of 235U and 238U at CERN n_TOF facility
... In order to measure the FFAD of neutron-induced reactions, a fission detection setup based on parallel-plate avalanche counters (PPACs) has been developed and successfully used at the CER[r] ... See full document
5
TANDBERG VIKING SERIES NAS APPLIANCE
... Partitions exist as either primary partitions or extended partitions and can be composed of only one basic disk no larger than 2 TB. Basic disks can also only contain up to four primary partitions, or three primary ... See full document
10
Fission fragment mass and total kinetic energy distributions of spontaneously fissioning plutonium isotopes
... The fission-fragment mass and total kinetic energy (TKE) distributions are evaluated in a quantum mechanical framework using elongation, mass asymmetry, neck degree of freedom as the relevant collective ... See full document
9
Prompt neutron emission and energy balance in 235U(n,f)
... the fission fragments in the target foil and/or surrounding materials, as already noted by Maslin et al ...degraded fission events is expected to be close to the average ... See full document
7
Measurement Of Uranium Concentration For Digestive System Samples In Two Governorates Of Iraq Using Fission Fragments Technique
... fission fragments in solid state Nuclear track detector (CR-39). Studied different etching times of these detectors to reach optimized time by using the water bath for etching where Choose chemical solution (NaOH) ... See full document
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