News from the Pellet target A.Gerasimov, V.Chernetsky, M.Büscher, P.Fedorets, A. Kantsyrev, E. Lushchevskaia, V. Panyushkin, A. Bogdanov, A.Dolgolenko, P.Balanutsa, E.Ladygina, L.Gusev, S.Mineev, I.Tarasenko, V. Demekhin, S.Makagonov, D.Bogachenko, N.Kristi, V.Karasev Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre «Kurchatov Institute» Moscow, Russia PANDA Meeting, Stockholm, June 04-08, 2018

Current activities Advanced data acquisition with PLC Development of the adjustment system Transfer of the first prototype from FZJ to ITEP Preparation of the draft of the TDR

Data acquisition system for target (first version) Gas flow control Remote controlled system via TCP/IP sockets Delphi XE2 language software for Windows PC Local Hard disk data saving Temperatures Heater control Pressure

Data acquisition with Programmable Logic Controller (working prog.) Using of PLC provide stable, autonomous readout and store of pellet target parameters to MySQL database ICPDAS XPAC XP8041 PLC Controller (Windows Embedded (Framework 4.0) + MS Visual Studio 2015) Pressure readout Pfeiffer TPG256 Database on Ubuntu Server MOXA Nport 5450 RS232 to Ethernet converter TCP/IP Sockets protocol SQL request Ethernet C# program One week test (reading repetition rate - 4 sec) with Windows Embedded on PLC . . . . . PHP, WEB interface Other devices

New software for delay and piezo generators Signal generator Rigol DG4202 for piezo rings Delay generator Stanford DG645 for backlighter Ethernet interface Delphi XE2 software Signal amplifier TABOR El. 9100 Signals 10 ns – 1 ms Delphi XE2 software Signal to piezo rings : Amplitude: up to ±100 V Frequency up to 1 MHz Piezzo Ring (installed on to holder of nozzle) Driver for Powerful LED LUXEON V-Star

LED backlighter + multi-pulse mode Parameters MOSFET driver scheme Powerful LED LUXEON V-Star (800mW) Min exposure: 100 ns Power supply 30 V 5 pulses with duration 300 ns each, repetition rate 1 MHz Posibility of visualisation of pellet movement at one image Light signals obtained by Hamamatsu R760 photomultiplier Lenses -Sigma DG APO Macro 180 mm f/ 2.8

Development of the adjustment system Idea: MDC Vacuum BLM-133-1-03 UHV linear actuator (proposed) Movement by stepper motors, 3 µm linear steps Onitex OSM-42R controller

Test of the adjustment system elements System of linear actuator + stepper motor operated via L-CARD E14-140 controller for four axes: 4 stepper motors – already delivered Test with L-Card controller and Delphi prog. – passed Mechanical production – in progress USB L-CARD - controller

Articles preparation In preparation - ”Development of data acquisition and diagnostic system for PANDA pellet target”, Journal: “Instruments and Experimental Techniques” (Scopus) end of 2018 or 2019 year.

Transfer of the first prototype from FZJ to ITEP Truck with the first prototype of the Pellet target arrived ITEP on 28 May.

Transfer of the first prototype from FZJ to ITEP The transfer was succeeded on 28 May 2018 With the parts from the first prototype the configuration of the second prototype will be completed Preparation of the draft of the TDR Writing of the draft of the Pellet target TDR is going on. The prototype is not completed. Some tests for TDR can not be performed. Waiting for transfer from FZJ. R&D studies are not finished. Some results are still absent.