Debelle, T. F.

Paper	Title	Page
WEP064	Commercial-Off-The-Shelf Technologies for Picosecond Timing and Synchronization	525
	D. R. Monnier-Bourdin GreenField Technology, Breuillet T. F. Debelle, M. M. Ravindran National Instruments, Austin
	Accurate timing is a key aspect of large physics experiments. More and more, Commercial-Off-The Shelf (COTS) technologies are used to provide synchronization down to a few picoseconds. This approach allows a wide selection of equipment, offers a high level of flexibility, and guarantees a smooth evolution as new technologies become available. For example, Greenfield Technology proposes a picosecond timing system that provides several hundred triggers to equipments distributed over an area of thousands of square meters within a resolution of 1 ps and low jitter < 15 ps. This system is built around a central oscillator transmitter which delivers a serial data stream over an optical network to manage delay generator triggering and time base. By combining this distributed timing system and the clock and triggering synchronization features of the PXI backplane, high speed instruments, such as digitizers, can also be synchronized with picoseconds accuracy to guarantee the best measurement quality. Due to the fact that all of these timing features are built into the backplane of the PXI chassis, the need for cumbersome cabling is drastically reduced.
	Poster
WEP078	Using EPICS Enabled Industrial Hardware for Upgrading Control Systems	555
	A. Veeramani, T. F. Debelle National Instruments, Austin E. Bjorklund LANL, Los Alamos, New Mexico
	Los Alamos National Laboratory has been working with National Instruments (NI) and Cosylab to implement EPICS Input Output Controller (IOC) software that runs directly on NI Compact RIO Real Time Controller (RTC) and communicates with LabVIEW through shared memory interface. In this presentation, we will discuss our current progress of upgrading our neutron science center and what we have learned about integrating Compact RIO into large experimental physics facilities. We will also discuss the implications of using Channel Access Server for LabVIEW which will enable more commercial hardware platforms to be used in upgrading existing facilities or in commissioning new ones.
	Poster
THD004	Options for Interfacing EPICS to COTS Hardware Through LabVIEW	913
	A. Veeramani, T. F. Debelle National Instruments, Austin W. Blokland, R. Dickson, A. P. Zhukov ORNL, Oak Ridge, Tennessee
	Over the years, many have developed custom drivers to interface hardware to EPICS Input Output Controller (IOC). With LabVIEW having native drivers for supporting commercial hardware, development time can be reduced if an interface with LabVIEW and EPICS IOC was developed. This paper examines the different ways of interfacing LabVIEW and EPICS IOC both on VxWorks and Windows operating systems. Implementation of the Channel Access (CA) server on LabVIEW will also be covered along with the advantages and limitations of such an approach. The paper will also list the status of the different implementations at Oak Ridge and Los Alamos National Laboratory.