PCaPAC2012 - List of Keywords (cyclotron)

Paper	Title	Other Keywords	Page
WEPD39	Development of an Ethernet Enabled Microcontroller Based Module for Superconducting Cyclotron ECR Beamline Control	controls, vacuum, monitoring, ECR	73
	M. Chatterjee, D. Koley, P.Y. Nabhiraj VECC, Kolkata, India
	A General purpose Ethernet enabled control and data acquisition module based on PIC microcontroller has been developed. This module supports multiple general purpose analog and digital inputs and outputs for interfacing with various equipments. The remote control, configuration and monitoring of the equipment are achieved through an embedded web server. A strict authentication process is built in the web server to access for control and configuration parameters that ensures the operational safety of the equipment under control. At present, this is being used for remote control of the ECR beam line vacuum systems and monitoring of various parameters like dual vacuum Gauge readings, pumping speed etc. These modules form a distributed control architecture enhancing the reliability of the controlled system, enables fast fault diagnostics and thereby reducing the downtime of the system significantly. In this article, the development of the hardware and software for the Ethernet enabled microcontroller based module is presented.
	Poster WEPD39 [0.568 MB]

THCB02	EPICS MySQLArchiver - Integration Between EPICS and MySQL	EPICS, controls, monitoring, status	109
	A. Roy, R.B. Bhole, S. Pal, D. Sarkar VECC, Kolkata, India
	The performance evaluation and analysis of inter-system dependency of the various subsystems of the Superconducting Cyclotron demand a well configured data logging, archiving and historic analysis facility for massive number of control parameters along with on-line failure analysis facility of every system. EPICS is used as development architecture of the control system of these systems with MySQL used as database for large amount of relational data management. This combination requires integration between EPICS and MySQL server. For this purpose, MySQLArchiver as an EPICS Extension is developed for data logging and archiving of control parameters into MySQL database. This extension also provides a web based tool for online monitoring of control parameters and historic analysis of archived data. This paper describes the software architecture, implementations, as well as method of configuration for any other EPICS based control system as a utility. This facility is also elaborated with examples, web page views and experiences of deploying it in SCC.
	Slides THCB02 [0.781 MB]

THPD10	Modular Beam Diagnostics Instrument Design for Cyclotrons	diagnostics, controls, EPICS, extraction	154
	N. Chaddha, R.B. Bhole, P.P. Nandy, S. Pal, S. Sahoo VECC, Kolkata, India
	The Cyclotrons at VECC, Kolkata i.e. Room Temperature Cyclotron (RTC) and Superconducting Cyclotron (SCC) comprise of internal and external beam diagnostic systems. These systems provide the beam developer with position, intensity, beam profile, a visual impression of the size & shape of ion beam, and operational control over diagnostic components like 3-finger probe, Beam Viewer probe, Deflector probe, Faraday cup, X-Y slit, Beam viewer etc. Automation of these components was initially done using customized modules for individual sub-system. An expansion of this facility and various levels of complexity demand modular design to cater easy modification and upgradation. The overall requirements are analysed and modular cards are developed based on basic functionalities like valve operation, probe/ slit/ viewer control, position read-out, interlock, aperture control of beam line and communication. A 32-bit Advanced RISC Machine (ARM) based card with embedded EPICS is chosen as the master controller and FPGA/ microcontroller is used for functional modules. The paper gives a comprehensive description of all modules and their integration with the control system.
	Poster THPD10 [0.522 MB]

THPD11	Facility Monitoring System using Storage Area Network for VEC and SCC	controls, EPICS, monitoring	157
	T. Bhattacharjee, R.B. Bhole, K. Datta, S. Pal, A. Roy, T. Samanta, D. Sarkar, Mr. Saxena VECC, Kolkata, India
	The facility monitoring system of cyclotron operational parameters at VECC is developed and commissioned recently. Storage Area Network(SAN) is used to isolate the control LAN and office LAN which ensures secured access of the control systems from outside world. EPICS gateway service and modified channel access save/restore tool have been used to integrate EPICS based control system of VEC and SCC with office network. This paper describes the implementation details and operational experiences of the overall facility monitoring system.

THPD12	Design and Implementation of an IEEE 802.15.4/ZigBee based Star Network for Data Acquisition and Monitoring	vacuum, controls, LabView, monitoring	160
	S. Guha, T.K. Bhaumik, C. Mallik, P.Y. Nabhiraj VECC, Kolkata, India
	ZigBee based wireless technology is used to provide a low cost, low power, secured, PAN solution for monitoring of parameters from several distributed vacuum pumping modules installed in the SCC injection line. The parameters include On-Off status of the modules, RPM of pump, input current and pressure reading of different vacuum gauges. The ZigBee stack is written in a simplified form so that each node can create a network and can join to any established network when powered on. End nodes can be replaced through a little modification in the firmware codes. End node consists of sensors, signal conditioning circuits, micro-controller and ZigBee Transceiver whereas the central node consists of micro-controller, Transceiver and UART interface. This paper highlights the future approach of utilizing this network for data acquisition related with environmental temperature, relative humidity, noise, water leakage from inaccessible areas of Cyclotron Vault, Pit, Basement and ECR Highbay for the ease of maintenance also demonstrate the development of an environment monitoring system powered by solar cells covering a wide area.
	Poster THPD12 [0.194 MB]

THPD19	Drive System Control for Kolkata Superconducting Cyclotron Extraction System	extraction, controls, feedback, high-voltage	181
	T. Bhattacharyya, S. Bhattacharya, T. Das, C. Nandi, G.P. Pal VECC, Kolkata, India
	The K500 Superconducting Cyclotron at VECC, Kolkata uses two electrostatic deflectors, eight passive magnetic channels, one active magnetic channel and two compensating bars as its extraction elements. Except the active magnetic channel, all the other elements can be moved radially, typically by ±6 mm around a centre position. This maneuverability is due to the fact that not all the ions, spanning the operating region of the cyclotron, will have the same optimum beam extraction radius. At the end of the beam extraction channel, the beam is shaped and aligned by a pair of water cooled slit. The slit movement is pneumatically controlled as it has to be operated in high magnetic field. The computer controlled drive system can move the elements precisely. The paper will describe the drive system and its control mechanism.
	Poster THPD19 [0.933 MB]

THPD36	An Embedded System Based Computer Controlled Process Automation for Recovery and Purification of ^99mTc from (n, γ)⁹⁹Mo	extraction, GUI, status, solenoid	211
	A. De, P. Bhaskar, A. Dutta Roy, M. Garai, V.K. Khare, S. Kumari, S.S. Pal, S. Saha, S.K. Thakur VECC, Kolkata, India L. Barua, S. Chattopadhyay, M.K. Das, U. Kumar, S. Saha Das BRIT, Bidhan Nagar, India
	⁹⁹Mo produced ^99mTc (t1/2=6hr, 140keV γ-ray) is the most useful radioisotope for nuclear diagnostics. High specific activity ⁹⁹Mo is supplied globally mainly by five old reactors whose routine or unscheduled maintenance shutdown causes supply irregularities that adversely affects patient management in nuclear medicine centres. ^99mTc may also be produced via ⁹⁸Mo(n,γ) in a natural MoO₃ target in reactor or by ¹⁰⁰Mo(n,2n)⁹⁹Mo or ¹⁰⁰Mo(p,2n)^99mTc reaction in cyclotron. To meet the crisis proposals are there to produce ⁹⁹Mo by ¹⁰⁰Mo(n,2n)⁹⁹Mo or ^99mTc directly by ¹⁰⁰Mo(p,2n)^99mTc in a cyclotron. Of the several separation methods of ^99mTc from molybdenum, the most common are adsorption column chromatography, sublimation and liquid-liquid solvent extraction. The conventional methods besides being cumbersome are often hazardous, polluting, require skilled manpower and facilities like fume hood and so are not always practically feasible for hospitals. To address these, VECC and BRIT, Kolkata have collaborated to develop an embedded system based automated ⁹⁹Mo/^99mTc generator from low specific activity ⁹⁹Mo using solvent extraction technique, supervised by a PC based GUI.
	Poster THPD36 [0.428 MB]

FRCC01	Design of the Data Acquisition System for the Nuclear Physics Experiments at VECC	controls, status, ion, light-ion	268
	P. Dhara, P. Maity, A. Roy, P.S. Roy, P. Singhai VECC, Kolkata, India
	The beam from K130 room temperature cyclotron is being extensively used for nuclear physics experiments for last three decades. The typical beam energy for the experiments is approximately 7-10MeV/nucleon for heavy ions and 8-20MeV/nucleon for light ions. The number of detectors used, may vary from one channel to few hundreds of detector channels. The proposed detector system for experiments with the superconducting cyclotron may have more than 1200 detector channels,and may be generating more than one million parameters per second. The VME and CAMAC based data acquisition system (DAQ) is being used to cater the experimental needs. The current system has been designed based on various commercially available modules in NIM, CAMAC and VME form factor. This type of setup becomes very complicated to maintain for large number of detectors. Alternatively, the distributed DAQ system based on embedded technology is proposed. The traditional analog processing may be replaced by digital filters based FPGA boards. This paper describes the design of current DAQ system and the status of the proposed scheme for distributed DAQ system with capability of handling heterogeneous detector systems.
	Slides FRCC01 [1.239 MB]

FRCD02	Process Control for Parallel Run of Two Helium Liquefiers at VEC Centre, Kolkata	controls, cryogenics, simulation, superconducting-magnet	285
	S. Pal, U. Panda VECC, Kolkata, India R. Basak WBSEDCL, India
	Two helium liquefiers are working in tandem while one is always connected with the superconducting cyclotron. High pressure (HP) and low pressure (LP) controls are necessary to maintain varying helium flow to the cold box. Since these two liquefiers share the same HP and LP pipelines, any pressure fluctuation due to rapid change in flow sometimes causes trip to the liquefiers. To overcome this problem there is a need for fast responsive HP control. Introduction of derivative gain in the PID loop for fast action is not desirable as it creates instability to the control system. This problem was rectified by introducing a novel control scheme based on the forced opening of the unloading valve to push back helium gas to buffer tank by changing the offset of PI control as a function of Buffer Tank pressure. A simulation using Matlab Simulink was performed initially to check the performance of pressure control loop. The same is implemented in the control loop of the new liquefier and an experiment was performed. The experimental results obtained will be discussed in the final paper.
	Slides FRCD02 [1.375 MB]

Paper

Title

Other Keywords

Page

WEPD39

Development of an Ethernet Enabled Microcontroller Based Module for Superconducting Cyclotron ECR Beamline Control

controls, vacuum, monitoring, ECR

73

M. Chatterjee, D. Koley, P.Y. Nabhiraj
VECC, Kolkata, India

A General purpose Ethernet enabled control and data acquisition module based on PIC microcontroller has been developed. This module supports multiple general purpose analog and digital inputs and outputs for interfacing with various equipments. The remote control, configuration and monitoring of the equipment are achieved through an embedded web server. A strict authentication process is built in the web server to access for control and configuration parameters that ensures the operational safety of the equipment under control. At present, this is being used for remote control of the ECR beam line vacuum systems and monitoring of various parameters like dual vacuum Gauge readings, pumping speed etc. These modules form a distributed control architecture enhancing the reliability of the controlled system, enables fast fault diagnostics and thereby reducing the downtime of the system significantly. In this article, the development of the hardware and software for the Ethernet enabled microcontroller based module is presented.

Poster WEPD39 [0.568 MB]

THCB02

EPICS MySQLArchiver - Integration Between EPICS and MySQL

EPICS, controls, monitoring, status

109

A. Roy, R.B. Bhole, S. Pal, D. Sarkar
VECC, Kolkata, India

The performance evaluation and analysis of inter-system dependency of the various subsystems of the Superconducting Cyclotron demand a well configured data logging, archiving and historic analysis facility for massive number of control parameters along with on-line failure analysis facility of every system. EPICS is used as development architecture of the control system of these systems with MySQL used as database for large amount of relational data management. This combination requires integration between EPICS and MySQL server. For this purpose, MySQLArchiver as an EPICS Extension is developed for data logging and archiving of control parameters into MySQL database. This extension also provides a web based tool for online monitoring of control parameters and historic analysis of archived data. This paper describes the software architecture, implementations, as well as method of configuration for any other EPICS based control system as a utility. This facility is also elaborated with examples, web page views and experiences of deploying it in SCC.

Slides THCB02 [0.781 MB]

THPD10

Modular Beam Diagnostics Instrument Design for Cyclotrons

diagnostics, controls, EPICS, extraction

154

N. Chaddha, R.B. Bhole, P.P. Nandy, S. Pal, S. Sahoo
VECC, Kolkata, India

The Cyclotrons at VECC, Kolkata i.e. Room Temperature Cyclotron (RTC) and Superconducting Cyclotron (SCC) comprise of internal and external beam diagnostic systems. These systems provide the beam developer with position, intensity, beam profile, a visual impression of the size & shape of ion beam, and operational control over diagnostic components like 3-finger probe, Beam Viewer probe, Deflector probe, Faraday cup, X-Y slit, Beam viewer etc. Automation of these components was initially done using customized modules for individual sub-system. An expansion of this facility and various levels of complexity demand modular design to cater easy modification and upgradation. The overall requirements are analysed and modular cards are developed based on basic functionalities like valve operation, probe/ slit/ viewer control, position read-out, interlock, aperture control of beam line and communication. A 32-bit Advanced RISC Machine (ARM) based card with embedded EPICS is chosen as the master controller and FPGA/ microcontroller is used for functional modules. The paper gives a comprehensive description of all modules and their integration with the control system.

Poster THPD10 [0.522 MB]

THPD11

Facility Monitoring System using Storage Area Network for VEC and SCC

controls, EPICS, monitoring

157

T. Bhattacharjee, R.B. Bhole, K. Datta, S. Pal, A. Roy, T. Samanta, D. Sarkar, Mr. Saxena
VECC, Kolkata, India

The facility monitoring system of cyclotron operational parameters at VECC is developed and commissioned recently. Storage Area Network(SAN) is used to isolate the control LAN and office LAN which ensures secured access of the control systems from outside world. EPICS gateway service and modified channel access save/restore tool have been used to integrate EPICS based control system of VEC and SCC with office network. This paper describes the implementation details and operational experiences of the overall facility monitoring system.

THPD12

Design and Implementation of an IEEE 802.15.4/ZigBee based Star Network for Data Acquisition and Monitoring

vacuum, controls, LabView, monitoring

160

S. Guha, T.K. Bhaumik, C. Mallik, P.Y. Nabhiraj
VECC, Kolkata, India

ZigBee based wireless technology is used to provide a low cost, low power, secured, PAN solution for monitoring of parameters from several distributed vacuum pumping modules installed in the SCC injection line. The parameters include On-Off status of the modules, RPM of pump, input current and pressure reading of different vacuum gauges. The ZigBee stack is written in a simplified form so that each node can create a network and can join to any established network when powered on. End nodes can be replaced through a little modification in the firmware codes. End node consists of sensors, signal conditioning circuits, micro-controller and ZigBee Transceiver whereas the central node consists of micro-controller, Transceiver and UART interface. This paper highlights the future approach of utilizing this network for data acquisition related with environmental temperature, relative humidity, noise, water leakage from inaccessible areas of Cyclotron Vault, Pit, Basement and ECR Highbay for the ease of maintenance also demonstrate the development of an environment monitoring system powered by solar cells covering a wide area.

Poster THPD12 [0.194 MB]

THPD19

Drive System Control for Kolkata Superconducting Cyclotron Extraction System

extraction, controls, feedback, high-voltage

181

T. Bhattacharyya, S. Bhattacharya, T. Das, C. Nandi, G.P. Pal
VECC, Kolkata, India

The K500 Superconducting Cyclotron at VECC, Kolkata uses two electrostatic deflectors, eight passive magnetic channels, one active magnetic channel and two compensating bars as its extraction elements. Except the active magnetic channel, all the other elements can be moved radially, typically by ±6 mm around a centre position. This maneuverability is due to the fact that not all the ions, spanning the operating region of the cyclotron, will have the same optimum beam extraction radius. At the end of the beam extraction channel, the beam is shaped and aligned by a pair of water cooled slit. The slit movement is pneumatically controlled as it has to be operated in high magnetic field. The computer controlled drive system can move the elements precisely. The paper will describe the drive system and its control mechanism.

Poster THPD19 [0.933 MB]

THPD36

An Embedded System Based Computer Controlled Process Automation for Recovery and Purification of ^99mTc from (n, γ)⁹⁹Mo

extraction, GUI, status, solenoid

211

A. De, P. Bhaskar, A. Dutta Roy, M. Garai, V.K. Khare, S. Kumari, S.S. Pal, S. Saha, S.K. Thakur
VECC, Kolkata, India
L. Barua, S. Chattopadhyay, M.K. Das, U. Kumar, S. Saha Das
BRIT, Bidhan Nagar, India

⁹⁹Mo produced ^99mTc (t1/2=6hr, 140keV γ-ray) is the most useful radioisotope for nuclear diagnostics. High specific activity ⁹⁹Mo is supplied globally mainly by five old reactors whose routine or unscheduled maintenance shutdown causes supply irregularities that adversely affects patient management in nuclear medicine centres. ^99mTc may also be produced via ⁹⁸Mo(n,γ) in a natural MoO₃ target in reactor or by ¹⁰⁰Mo(n,2n)⁹⁹Mo or ¹⁰⁰Mo(p,2n)^99mTc reaction in cyclotron. To meet the crisis proposals are there to produce ⁹⁹Mo by ¹⁰⁰Mo(n,2n)⁹⁹Mo or ^99mTc directly by ¹⁰⁰Mo(p,2n)^99mTc in a cyclotron. Of the several separation methods of ^99mTc from molybdenum, the most common are adsorption column chromatography, sublimation and liquid-liquid solvent extraction. The conventional methods besides being cumbersome are often hazardous, polluting, require skilled manpower and facilities like fume hood and so are not always practically feasible for hospitals. To address these, VECC and BRIT, Kolkata have collaborated to develop an embedded system based automated ⁹⁹Mo/^99mTc generator from low specific activity ⁹⁹Mo using solvent extraction technique, supervised by a PC based GUI.

Poster THPD36 [0.428 MB]

FRCC01

Design of the Data Acquisition System for the Nuclear Physics Experiments at VECC

controls, status, ion, light-ion

268

P. Dhara, P. Maity, A. Roy, P.S. Roy, P. Singhai
VECC, Kolkata, India

The beam from K130 room temperature cyclotron is being extensively used for nuclear physics experiments for last three decades. The typical beam energy for the experiments is approximately 7-10MeV/nucleon for heavy ions and 8-20MeV/nucleon for light ions. The number of detectors used, may vary from one channel to few hundreds of detector channels. The proposed detector system for experiments with the superconducting cyclotron may have more than 1200 detector channels,and may be generating more than one million parameters per second. The VME and CAMAC based data acquisition system (DAQ) is being used to cater the experimental needs. The current system has been designed based on various commercially available modules in NIM, CAMAC and VME form factor. This type of setup becomes very complicated to maintain for large number of detectors. Alternatively, the distributed DAQ system based on embedded technology is proposed. The traditional analog processing may be replaced by digital filters based FPGA boards. This paper describes the design of current DAQ system and the status of the proposed scheme for distributed DAQ system with capability of handling heterogeneous detector systems.

Slides FRCC01 [1.239 MB]

FRCD02

Process Control for Parallel Run of Two Helium Liquefiers at VEC Centre, Kolkata

controls, cryogenics, simulation, superconducting-magnet

285

S. Pal, U. Panda
VECC, Kolkata, India
R. Basak
WBSEDCL, India

Two helium liquefiers are working in tandem while one is always connected with the superconducting cyclotron. High pressure (HP) and low pressure (LP) controls are necessary to maintain varying helium flow to the cold box. Since these two liquefiers share the same HP and LP pipelines, any pressure fluctuation due to rapid change in flow sometimes causes trip to the liquefiers. To overcome this problem there is a need for fast responsive HP control. Introduction of derivative gain in the PID loop for fast action is not desirable as it creates instability to the control system. This problem was rectified by introducing a novel control scheme based on the forced opening of the unloading valve to push back helium gas to buffer tank by changing the offset of PI control as a function of Buffer Tank pressure. A simulation using Matlab Simulink was performed initially to check the performance of pressure control loop. The same is implemented in the control loop of the new liquefier and an experiment was performed. The experimental results obtained will be discussed in the final paper.

Slides FRCD02 [1.375 MB]