Pulse Die-Away Experiment in Small Graphite Prisms with the “Cold” Neutron Source
نویسندگان
چکیده
منابع مشابه
A graphite-moderated pulsed spallation ultra-cold neutron source
Proposals exist and efforts are under way to construct pulsed spallation ultra-cold neutron (UCN) sources at accelerator laboratories around the world. At the Paul Scherrer Institut (PSI), Switzerland, and at the Los Alamos National Laboratory (LANL), U.S.A., it is planned to use solid deuterium (SD2) for the UCN production from cold neutrons. The philosophies about how the cold neutrons are ob...
متن کاملThe Spallation Target for the Ultra Cold Neutron Source Ucn
A source of ultra cold neutrons, based on the spallation process is under construction at PSI. With the help of a fast kicker the whole ~1 MW proton beam (590 MeV, 2 mA) from the accelerator will be switched onto the UCN spallation target for approximately 8 seconds every 15 minutes. The spallation neutrons are thermalized in a large heavywater moderator at room temperature and further cooled i...
متن کاملSmall Covers over Prisms
In this paper we calculate the number of equivariant diffeomorphism classes of small covers over a prism.
متن کاملThe new cold neutron chopper spectrometer at the Spallation Neutron Source: design and performance.
The design and performance of the new cold neutron chopper spectrometer (CNCS) at the Spallation Neutron Source in Oak Ridge are described. CNCS is a direct-geometry inelastic time-of-flight spectrometer, designed essentially to cover the same energy and momentum transfer ranges as IN5 at ILL, LET at ISIS, DCS at NIST, TOFTOF at FRM-II, AMATERAS at J-PARC, PHAROS at LANSCE, and NEAT at HZB, at ...
متن کاملBenchmarking Monte Carlo Simulations of Thermal Neutron Kinetics and Differential Die-away Analysis
Differential Die-Away Analysis (DDAA) is a very effective technique for detection of special nuclear material (SNM). It is based on fission neutrons that are detected with a time constant characteristic of the thermal neutron that created them. The presence of fast neutrons with this slow die-away time is a positive indication of the presence of SNM in the inspected cargo. Results are presented...
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: Journal of Nuclear Science and Technology
سال: 1972
ISSN: 0022-3131,1881-1248
DOI: 10.1080/18811248.1972.9734799