1. Towards a Unified Environmental Monitoring,
Control and Data Management System for Irradiation Facilities:
the CERN IRRAD Use Case
B. Gkotse, M. Glaser, E. Matli, G. Pezzullo, F. Ravotti, P. Jouvelot
1 European Organization for Nuclear Research, CERN EP-DT-DD, Geneva, Switzerland
2 MINES ParisTech, PSL Research University, Paris, France
ABSTRACT
The qualification of materials, electronic components and equipment for the CERN High Energy Physics experiments and beyond requires testing against possible radiation effects. These quite complex tests are performed by specialized teams working in irradiation facilities, such as IRRAD, the CERN Proton Irradiation Facility. Building upon the details of the overall irradiation control, monitoring and logistical systems of IRRAD as a use case, we introduce the motivations for and general architecture of its new data management framework, currently under development at CERN. This infrastructure is intended to allow for the seamless and comprehensive handling of IRRAD irradiation experiments and to help manage all aspects of the facility. Its architecture, currently focused on the specific requirements of IRRAD, is intended to be upgraded to a general framework that could be used in other irradiation facilities within the radiation effects community, as well as for other applications.
IRRAD
Testing components of the HEP experiments
Beam of 24 GeV/c and size of 12×12 mm2
Spills of 400msec every ~10sec
Fluence of 1×1016 p/cm2 in 14 days
Scanning also in dimensions of 10×10cm2
Low temperature irradiation (-25°C)
Irradiation System Control
IRRAD Beam Instrumentation
IRRAD tables
IRRAD1 Shuttle
Beam Profile Monitor (BPM)
Transferring small samples (5×5 cm2) from outside, inside the irradiation zone without stopping the beam
Transferring small samples (5×5 cm2) from outside, inside the irradiation zone without stopping the beam
AD6
For beam alignment
Positioning samples of different type and shape in beam
For correct alignment of IRRAD tables in beam
Shuttle system
IRRAD tables
Shuttle conveyor
BPM profiles
BPM hardware system
Manual control
User interface of the IRRAD table control system.
Administrator interface
IRRAD user interface
BPM system architecture
Mini-BPM profiles
Environmental Monitoring
Additional Applications
500 channels values monitored in each spill:
Temperature
IRRAD Tables and shuttle
positions
Radiation
Beam intensities
IRRAD status panel
Application for the SEC value and intensity computation
3D reconstructed beam profile
Notifications and alarms
Tool for monitoring the dose rate of the AD6 dosimeters
Environmental monitoring system
IRRAD tables positions display
IRRAD Data Management System
Towards a Unique Irradiation Facility Framework
Motivations
Poster #264
After research in many irradiation facilities:
Registered Experiments (web) 52
49 executed (94%)
Number of user teams
AIDA teams
~70% LHC experiments
Number of samples / irradiated objects
416
246 “SET” numbers
Samples size (MIN/MAX)
2mm × 2mm
250cm × 13cm × 4cm
Target proton fluence (request MAX)
1×1017 p/cm2
(5×5mm2 FWHM)
~27MGy in Si
Typical irradiation runs (MIN/MAX)
~2×1011 p/cm2 (1 spill)
~4.2×1016 p/cm2 (5×5mm2 FWHM)
~1.6×1016 p/cm2 (20×20mm2 FWHM)
Typical irradiation time (MIN/MAX)
400 ms
~50 days
~76 days
Operations are done manually and even on papers
Operating autonomously, using their own technologies and management systems
Outdated systems
Risks of data loss because of the poor or no data management systems
Lack of a common knowledge base shared among the irradiation facilities
The irradiation facilities need to share the same knowledge base and follow a same irradiation facility model. For this reason we need an ontology.
Types of samples irradiated in IRRAD
Radioactive equipment database (TREC)
Conclusion
IRRAD Proton Facility 2016
Ontology is an assembly of definitions, properties and interrelations among entities of a specific domain, in this case the irradiation facilities
Gamma Spectrometry System (APEX)
Irradiation Facility Framework
Adaptive
Multi-profile
Platform independent
Database Schema
balsamiq mockups
Irradiation facility ontology sketch
IRRAD Data Management System webpages