Interpretation of neutron time-of-flight signals from current-mode detectors
نویسندگان
چکیده
منابع مشابه
Neutron Time-of-Flight Spectroscopy
The time-of-flight technique is employed in two of the instruments at the NIST Cold Neutron Research Facility (CNRF). A pulsed monochromatic beam strikes the sample, and the energies of scattered neutrons are determined from their times-of-flight to an array of detectors. The time-of-flight method may be used in a variety of types of experiments such as studies of vibrational and magnetic excit...
متن کاملPrototypes of NIF Neutron Time-of-Flight Detectors Tested on OMEGA
Every large ICF laser facility, including Nova, OMEGA, and GEKKO, uses neutron time-of-flight (nTOF) systems to measure neutron yields and ion temperatures. Such nTOF systems are usually based on current-mode detectors consisting of a fast plastic scintillator optically coupled to a fast photomultiplier tube (PMT). A high-bandwidth transient digitizer records the signal. These systems, which ar...
متن کاملCalibration of time of flight detectors using laser-driven neutron source.
Calibration of three scintillators (EJ232Q, BC422Q, and EJ410) in a time-of-flight arrangement using a laser drive-neutron source is presented. The three plastic scintillator detectors were calibrated with gamma insensitive bubble detector spectrometers, which were absolutely calibrated over a wide range of neutron energies ranging from sub-MeV to 20 MeV. A typical set of data obtained simultan...
متن کاملAdvances in gaseous time-of-flight detectors
Timing Resistive Plate Chambers (RPCs) are planar gaseous detectors made with a combination of metallic and resistive electrodes, delivering time resolutions around 50 ps σ and efficiency up to 99% for MIPs. In this work we describe the development and test of an electrically shielded timing RPC array for crosstalk-free time measurements in high granularity time-of-fight (TOF) systems, as the I...
متن کاملNeutron Detectors
Mechanisms for detecting neutrons in matter are based on indirect methods. Neutrons, as their name suggests, are neutral. Also, they do not interact directly with the electrons in matter, as gamma ray$ do. The process of neutron detection begins when neutrons, interacting with various nuclei, initiate the release of one or more charged particles. The electrical signrdsproduced by the charged pa...
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ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 1997
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.1147763