13 oct 2005 icalepcs 20051 ramses: the lhc radiation monitoring system for the environment and...

13 Oct 2005 ICALEPCS 2005 1

RAMSES: The LHC RAdiation Monitoring System for the Environment and Safety

G. Segura CERN

on behalf of the RAMSES team


The LHC RAdiation Monitoring System for the Environment and Safety

Overview: LHC radiation monitoring RAMSES project System design: architecture Development Status and results


LHC radiological risk

The operation of accelerators involves interaction of high energy particles with matter

Beam losses : nuclear interaction of high energy protons with matter production of mixed radiation fields (Hadrons, neutrons, muons, photons, etc.).

Accelerator in operation :

Stray radiationsIrradiation risk for personnel (accessible areas) and risk for the environment (through access pits, releases of water and gases).

Accelerator stopped :Material activation due to beam losses.

Radiation dose rate due to activationIrradiation risk for personnel (maintenance works) and risk for the environment (dispersal of radioactive material).

Calibration of detectors (experiments).

Radioactive SourcesIrradiation risk for personnel and for the environment (dispersal of radioactive sources).

Overview RAMSES project System design Development Status and results


LHC Radiation monitoring

The radiological safety of the LHC will be ensured by the on-line acquisition from 350 measurement devices of 15 different types spread over the 8 points (both surface and underground installations).



Radiation Monitors

For Radiation Protection

LHC accelerator and experimental areas : Area REM-counter monitor [ARC] Area Gamma dose rate monitor [AGM] Area Mixed field radiation monitor

[AMF] Tunnel Gamma dose rate monitor

[TGM] Tunnel Mixed field radiation monitor

[TMF] X rays monitor [XRM] Induced activity monitor [IAM]

Other monitors & equipment : Hand&Foot monitor [HFM] Site Gate monitor [SGM] Tools & material controller [PCM] Alarm radiation display [PAD]

For the environment

Stray radiation monitoring station: Gamma and muons monitor [EPIC] Neutrons monitor [ERC]Ventilation monitoring station (Emissions): Gas monitor [VGM] Aerosol sampler [VAS]Water monitoring station (Effluents): Release water monitor [RWM] Release water sampler [RWS]Meteorological data (wind speed &

direction, atmospheric stability class) : Ultrasound anemometer [USA]Samples from the environment : Environmental aerosol sampler [EAS]Conventional parameters in released waterpH, Temperature, Conductivity, Turbidity,

Flow rate



RAMSES major functions

Monitoring radiation variables (on-line local and remote display) Monitoring of ambient dose equivalent rates and ambient dose equivalents in

the working environment (underground accessible areas, on the surface and in the environment)

Measurement of radioactivity in released gases and fluids (radioactive nuclides)

Measurement of induced activity during LHC stop/shutdown

Alarm functions (local and remote) Radiation level alarms based on ambient dose equivalent rates and ambient

dose equivalents Technical alarms Interlocks

Long term permanent and reliable data logging Measured values Events (radiation alarms, interlocks, system fault alarms, technical alarms) System configuration



Design and development constrains

Distributed Radiation Monitoring system Flexible and modular design for easy installation and configuration Integrated software infrastructure (control rooms, networks and

databases) Operational 24/24 hours a day, 365/365 days per year A safety integrity level (SIL) 2 for radiation alarms and interlocks Industrial solution based on standard industrial equipment (COTS

where possible) Compliant with applicable international standards for radiation

protection instrumentation Application of the IEC 61508 standards for the overall project

management Valid for the replacement of the current radiation monitoring system

(ArCon: VME, 68k, OS9 …)



Special requirements

LEGAL REQUIREMENTS

State of the art technology Certification required for radiation protection instrumentation used in decision making ! Delivered by legal European bodies (Already required in most European countries, in France from 1/1/2008 onward…) Based on the total compliance to applicable international standards (IEC).

CERN SPECIFIC REQUIREMENTS

Evaluation required for radiation protection instrumentation used in CERN very particular radiation fields (high energy, mixed and pulsed fields) Based on a technical reference frame established by legal European bodies derived from experimental studies and Monte Carlo simulations.


13 Oct 2005 ICALEPCS 2005 10


13 Oct 2005 ICALEPCS 2005 11

Supervision: Measured values, alarms, status

MonitoringStations

Operation

MS DA

EXTERNAL CMH/TEHSUP

(client)DAI

SCADA servers ORCL

T-RDBLogging

ConfigurationDB

Interlocks

SUP Server (x2)

UA

FWUA

DA

FWDA

PLC

PLCMSDA

PANEL

PANELMSDA

KEPWAREOPC server S7-200

MS Integrated

SGM

FWSGM

PCM

FWPCM

RWM

FWRWM

HFM

FWHFM

WEB

MS Ventilation

VGM

FWVGM

PLC

PLC MSVGM_VAS

PANEL

PANEL MSVGM_VAS

MS IAS

PLC

PLCMSIAS

IAS

FWIAS

VAS

FWVAS

MS Water

RWS

FWRWS

PLCPLC MSRWS_WFM_WMPS

PANELPANEL MSRWS_WFM_WMPS

MS USA

PLC

PLCMSUSA

USA

FWUSA

WFM

FWWFM

WMPS

FWWMPS

PANEL

PANELMSUSA

ECWSUP

(client)DAI

TOOLS(step7,…)

Data files

DIP LASERWebClient

DllEXM

KEPWAREOPC server Modbus

Radiation Protection and Conventional Environment measurement devices

CWS server


13 Oct 2005 ICALEPCS 2005 12

Archiving, logging, off-line analysis

MonitoringStations

Operation

MS DA

CMH/TEH

SUP(client)

DAI

SCADA servers ORCL

T-RDBLogging

ConfigurationDB

SUP server (x2)

UA

FWUA

DA

FWDA

PLC

PLCMSDA

PANEL

PANELMSDA


MS Ventilation

VGM

FWVGM

PLC

PLC MSVGM_VAS

PANEL

PANEL MSVGM_VAS

MS IAS

PLC

PLCMSIAS

IAS

FWIAS

VAS

FWVAS

MS Water

RWS

FWRWS



MS USA

PLC

PLCMSUSA

USA

FWUSA

WFM

FWWFM

WMPS

FWWMPS

PANEL

PANELMSUSA

ECW

SUP(client)

DAITOOLS

(step7,…)

MS Integrated

SGM

FWSGM

PCM

FWPCM

RWM

FWRWM

HFM

FWHFM

EXTERNAL WEB

DIP LASERClientWEB

DriverSGM

DataFiles

DllEXM


CWS server


13 Oct 2005 ICALEPCS 2005 13

Configuration management

MonitoringStations

Operation

MS DA

CMH/TEH

SUP(client)

DAI

SCADA servers ORCL

T-RDB

SUP server (x2)

UA

FWUA

DA

FWDA

PLC

PLCMSDA

PANEL

PANELMSDA


MS Integrated

SGM

FWSGM

PCM

FWPCM

RWM

FWRWM

HFM

FWHFM

MS Ventilation

VGM

FWVGM

PLC

PLC MSVGM_VAS

PANEL

PANEL MSVGM_VAS

MS IAS

PLC

PLCMSIAS

IAS

FWIAS

VAS

FWVAS

MS Water

RWS

FWRWS



MS USA

PLC

PLCMSUSA

USA

FWUSA

WFM

FWWFM

WMPS

FWWMPS

PANEL

PANELMSUSA

ECW

SUP(client)

DAITOOLS

(step7,…)

EXTERNAL WEB

DIP LASERClientWEB

DriverSGM

Data files

DllEXM


LoggingConfiguration

DB

CWS server


13 Oct 2005 ICALEPCS 2005 14

DA

Monitoring of a wide LHC area

Radiation protection monitoring station

Sensor + DA + Alarm Unit + interlock

Autonomous (2 hours)

Certified by Certified SIL2

Modular to cover a wide areas

BUS UA (RS-485)

BUS DA (RS-485)

DA DA

DA

UA


13 Oct 2005 ICALEPCS 2005 15

Status and results

The system installation has started in the LHC surface The equipments to install in the tunnel are being tested

in other accelerators A long way still to go before the LHC is fully covered by

RAMSES …

And after that … the current installations for the other accelerators will be replaced by RAMSES.


13 Oct 2005 ICALEPCS 2005 16

RAMSES: The LHC RAdiation Monitoring System for the Environment and Safety

G. Segura CERN

on behalf of the RAMSES team

13 oct 2005 icalepcs 20051 ramses: the lhc radiation monitoring system for the environment and...

Documents

radiation monitors

radiation dose rate

lhc radiological risk

working environment

ramses team slide

activation irradiation

releases of water

released water ph