Examples of TTDB in a sentence
SSED management through analysis of the weekly TTDB and PSP/TSP reports will determine compliance with TTDB and PSP/TSP procedures.
The unfolded spectrum was normalized using the beam current measured at the Faraday cup on the breakup target in cyclotron vault.The TTDB neutron beam in Cave 0 is remarkably intense and well suited to a wide variety of nuclear science and engineering experiments.
These higher energy neutrons can be a troublesome feature in some applications, leading to complications in determining instrument response and rendering activation-based flux measurement impossible to perform.This combination of characteristics makes the TTDB neutron source at LBNL well-suited for a wide range of nuclear science and engineering applications ranging from (n,x) cross section measurements to neutron damage studies to detector characterization [34].
The TTDB mechanism involves a combination of nuclear and Coulombic break-up of the deuteron beam as it traverses a thick target.
TTDB is, rightly, a mixed sector membership of various experience, skills and knowledge.
There were no accounting standards issued in fiscal 2022 that will have a material impact on our condensed consolidated financial statements.Recently Adopted Financial Accounting Standards There were no new material accounting standards adopted in the six months ended December 31, 2021.
Also plotted is the spectrum from the Weapons Neutron Research Facility at Los Alamos National Laboratory (WNR-15L) assuming a beam current of 4 µA and a 6% duty cycle.For the LBNL 16 + Be and 33 MeV + Ta TTDB measurements, neutrons were detected using an EJ-309 organic scintillator coupled to a Hamamatsu H1949-50 photomultiplier tube at 683.78 cm and686.4 cm from the breakup target, respectively.
The neutrons are produced via the thick target deuteron break-up (TTDB) mechanism that has been studied in the past by Schweimer [23] and Meulders [24].
While the average energy of the neutrons from TTDB is approximately half of the incident beam energy less the deuteron binding energy, the fact that the beam is slowing as it traverses a thick target gives rise to a relatively broad energy spectrum whose end point is at the beam-energy plus the re- action Q-value.
The TTDB mechanism is an efficient way to generate fast neutrons, particularly if a low-Z break-up target such as carbon or beryllium is used where up to 10% of the beam can be converted into neutrons at forward angles.Fig.