LEIR Schottky renovation M.Andersen –BE-BI-SW 29/05/2013

Actual devices

Agilent N9020 A 1. Vertical 2. Horizontal 3.Longitudinal

Interface Based on Windows XP (upgrade is possible) Running VSA SW package When used away from LEIR control room, use Remote Desktop

SW screen

What are the issues? Reliability: system freezes, sometimes hard reset is the only solution. Lacking responsiveness, latency and lagging, freezing. Incomplete results- requires extra steps to compute Schottky end-results. Inconvenient – one needs 3 simultaneous remote desktops to 3 devices. Non-compliant with CO infrastructure Windows XP – IT no longer supports and allows it on the tech-net.

Problem causes 1. Remote Desktop strains resources a.3-5 Mbps on average b.20 Mbps bursts c.Non-uniform network load. 2. Windows XP

Renovation possibilities Improve interface with existent acquisition HW Replace acquisition HW SW with new one

Home build HW Home build HW Can Tune measurement Electronics (BBQ) handle the job? analogue down mixing with an analogue mixer, followed with an analogue low-pass filter “..Given the parameters of your signal (span of 300 kHz), there should not be any loss of information even if the signal is around 1 MHz, requiring sampling at 2 MHz…” Marek Gasior Replace Acquisition HW with a new system

Agilent PXI HW Agilent PXI HW High cost modular PXI solutions from agilent based on M9202A digitizers. Data visualisation and analysis based on the same SW platform as current N9020A. Software interface libraries are for Windows/Labview only Costly (€ 50K) and does not solve our problem. Replace Acquisition HW with a new system

Improve perfomance by reducing network traffic strain Make network traffic more homogenous Only transmit the actual numeric data withot graphics ”Hide” 3 Agilent devices behind a FEC running FESA. Dedicated op. application would improve user experinece Improve current interface Improve interface with existent acquisition HW

Proposed scheme Improve interface with existent acquisition HW

Has been successfully implemented before Known to be working GPIB to LAN adapter does not require GPIB interface card Open source libraries exist ÷GPIB is an old bus standard GPIB SW interface

Ethernet - initial picture TCPIP-LAN through IVI Class Driver ( direct interface to LabWindows/CVI or Microsoft COM) Lower level Agilient I/O Libraries suite provides drivers and libraries interface for C- C++,C#.NET, Labview, Matlab. Only Windows OS- is supportd

Ethernet on LINUX Agilent support message based SCPI (Standard Command for Programmable Instrument) standard which is verdor and interface independent SCPI commands are transparent over LAN, GPIB or USB. Linux sockets over port 5025 allows for SCPI link to the device.

To be done: Consolidate & formalize SCPI functions into a proper SW API library. Investigate operational use-cases: free-running vs. MTG synchronous triggering Specify and develop an initial FESA class handling all three AN9020A devices. Produce an application for the operation. Evaluate upgrade (Windows 7 + new processor and SSD, CHF 4150,- /device)

BCTs In LEIR: TRIC based Fast BCTs have been operating in parallel, ready to replace old system. In LN3: TRICs are also deployed but due to baseline slope distortions can’t replace the old yet; HW based solution is being tested Ring BCT system based on Linux and VD80 ADC modules runs in parallel.