Experiments with a Slow Neutron Velocity Spectrometer
نویسندگان
چکیده
منابع مشابه
Experiments with a Slow Neutron Velocity Spectrometer
Neutron bursts were produced by modulation of the arc source of a small cyclotron. Neutrons subsequently slowed down in paraffin were detected by a BF3ionization chamber and linear amplifier. Modulation of an additional amplifier allowed the counting of all detected. neutrons as well as those arriving in a specified time interval. Time of flight experiments were carried out at 3.0 meters with "...
متن کاملPolarized Neutron Spectrometer Development and Experiments at Brookhaven
Recent work at Brookhaven has focussed on the development of polarized neutron spectrometers and reflects the resurgence of interest in polarization analysis. Both Heusler crystals and FeGe multilayers used in conjunction with pyrolytic graphite crystals have been tested as polarizing monochromators on a triple-axis instrument. The goal is to first obtain polarized beams of adequate intensity a...
متن کاملStored Ultracold Neutron Lifetime Experiments: Non-Inertial Frame Effects on the Neutron Velocity Spectrum
Abstract Ultracold neutrons (UCN), stored in a cell with hard walls that is attached to, and therefore rotating with, the Earth, will experience non-inertial frame effects, resulting in a broadening of the UCN spectrum. A heating or cooling of the spectrum is also possible. This is because the stored UCN are in a freely falling (inertial) frame between sudden wall collisions, and the accelerati...
متن کاملSuperheated Drop as a Neutron Spectrometer
Superheated drops are known to vaporise when exposed to energetic nuclear radiation since the discovery of bubble chamber. The application of superheated drops in neutron research specially in neutron dosimetry is a subject of intense research for quite sometime. As the degree of superheat increases in a given liquid, less and less energetic neutrons are required to cause nucleation. This prope...
متن کاملNIST Calibration of a Neutron Spectrometer ROSPEC
A neutron spectrometer was acquired for use in the measurement of National Institute of Standards and Technology neutron fields. The spectrometer included options for the measurement of low and high energy neutrons, for a total measurement range from 0.01 eV up to 17 MeV. The spectrometer was evaluated in calibration fields and was used to determine the neutron spectrum of an Americium-Berylliu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review
سال: 1941
ISSN: 0031-899X
DOI: 10.1103/physrev.59.332