Features * Three Outputs. (1) fast output for timing; (2) linear output for pulse height analysis; (3) Neutron gate for counting neutrons or for use in coincidence with the fast or linear output. a Detects neutrons with energies from 0.5 MEV to 40 MEV. * High detection efficiency for fast neutrons with 2000:1 rejection ratio for gamma rays. * Useful with NE 311A Boron loaded liquid scintillator...

The Plasma and Ion Source Technology Group at Lawrence Berkeley National Laboratory has developed various types of advanced D-D (neutron energy 2.5 MeV), D-T (14 MeV) and T-T (0–9 MeV) neutron generators for wide range of applications. These applications include medical (Boron Neutron Capture Therapy), homeland security (Prompt Gamma Activation Analysis, Fast Neutron Activation Analysis and Pul...

We report the preparation of neutron-activated xenon for the calibration of liquid xenon (LXe) detectors. Gamma rays from the decay of xenon metastable states, produced by fast neutron activation, were detected and their activities measured in a LXe scintillation detector. Following a five-day activation of natural xenon gas with a Cf (4× 10 n/s) source, the activities of two gamma ray lines at...

Abstract Prompt gamma rays of cerium and chlorine were investigated with the FaNGaS (Fast Neutron-induced Gamma-ray Spectrometry) instrument operated at Heinz Maier-Leibnitz Zentrum (MLZ) in Garching. The radiation was emitted from (n,n’), (n,p) (n,α) reactions induced by irradiation a cerium(III) chloride (CeCl 3 ) sample beam fission neutrons. Additionally, polyvinylchloride (PVC, (C 2 H Cl) ...

Gamma-ray emission from special nuclear material (SNM) is relatively easy to shield detection using modest amounts of high-Z material. In contrast, fast-neutrons are much more penetrating and can escape thick shielding without losing significant energy. Furthermore, fast neutrons provide a clear unambiguous signature the presence SNM with few competing natural background sources. The challenge ...

introduction bnct is an effective method to destroy brain tumoral cells while sparing the healthy tissues. the recommended flux for epithermal neutrons is 109 n/cm2s, which has the most effectiveness on deep-seated tumors. in this paper, it is indicated that using d-t neutron source and optimizing of beam shaping assembly (bsa) leads to treating brain tumors in a reasonable time where all iaea ...

The powerful white neutron spectrum from Gelina is used for the investigation of gamma ray production cross sections in the reaction 52Cr(n,n'gamma)52Cr. The gamma rays from the inelastic process are detected with two large volume HPGe detectors placed at 110 degrees and 150 degrees with respect to the beam direction. The neutron flux has been measured with a 235U fission chamber. For the main ...

The article describes the technology of obtaining a highly effective composite radiation-protective material based on titanium-coated fraction titanium hydride and alumina cement binder. physical mechanical properties resulting are investigated. results an experimental study with respect to gamma neutron radiation presented. Point isotopic sources fast neutrons Pu-α-Be (neutron energy - 4.5 MeV...

The neutron emissivity profile in the Madison Symmetric Torus is being reconstructed through the use of a collimated neutron detector. A scintillator-photomultiplier tube (PMT) system is employed to detect the fusion neutrons with the plasma viewing volume defined by a 55 cm deep, 5 cm diameter aperture. Effective detection of neutrons from the viewing volume is achieved through neutron moderat...

Background: The Poly-Allyl Diglycol Carbonate (PADC) detector is of particular interest for development of a fast neutron dosimeter. Fast neutrons interact with the constituents of the CR-39 detector and produce H, C and O recoils, as well as (n, α) reaction. These neutron- induced charged particles contribute towards the response of CR-39 detectors. Material and Methods: Electrochemical...