High Spatial Resolution Fast-Neutron Imaging Detectors for Pulsed Fast-Neutron Transmission Spectroscopy

Two generations of a novel detector for high-resolution transmission imaging and spectrometry of fast-neutrons are presented. These devices are based on a hydrogenous fiber scintillator screen and single- or multiple-gated intensified camera systems (ICCD). This detector is designed for energy-selective neutron radiography with nanosecond-pulsed broad-energy (1 - 10 MeV) neutron beams. Utilizing the Time-of-Flight (TOF) method, such a detector is capable of simultaneously capturing several images, each at a different neutron energy (TOF). In addition, a gamma-ray image can also be simultaneously registered, allowing combined neutron/gamma inspection of objects. This permits combining the sensitivity of the fast-neutron resonance method to low-Z elements with that of gamma radiography to high-Z materials.Comment: Also published in JINST: http://www.iop.org/EJ/abstract/1748-0221/4/05/P0501

The National Challenge in Computer Science and Technology

Table of Contents Front Matteri-viii 1 Introduction and Summary1-6 2 The Promise of Technology7-13 3 The Promise of Infrastructure14-21 4 A Unique Innovation Engine22-30 5 Recommendations31-38 6 Machines, Systems, and Software39-50 7 Artificial Intelligence51-59 8 Theoretical Computer Science60-63 References </ul

Realizing the information future : the internet and beyond.

NRenaissance CommitteeComputer science and telecommunications boardNational research counci

Proceedings / Expert Group Meeting on Integrating Information Systems/Technology in Local/Regional Development Planning, Singapore, 31 October-4 November, 1988

Meeting: Expert Group Meeting on Integrating Information Systems/Technology in Local/Regional Development Planning, 31 October-4 November, 1988, Singapore, S

Scaling Up: A Research Agenda for Software Engineering

Institute for Software Researc