A tool for space radiation exposure calculations for aviators. P. Paschalis [1], A. Tezari [1] [2],. M. Gerontidou [1], H. Mavromichalaki [1]. [1] Athens Cosmic Ray ...
A tool for space radiation exposure calculations for aviators P. Paschalis [1], A. Tezari [1] [2], M. Gerontidou [1], H. Mavromichalaki [1] [1] Athens
Cosmic Ray Group, Physics Faculty; University of Athens
[2] Athens
Medical School
Overview 1. Athens Neutron Monitor Station 2. CR cascades
3. Applications and tools 4. DYASTIMA
5. Conclusions and future plans
Athens Neutron Monitor Station-ANeMoS
http://cosray.phys.uoa.gr/
Founding member of the High Resolution Neutron Monitor Datadase-NMDB consortium (http://www.nmdb.eu)
Expert group of ESA SSA Space Radiation Service Center (http://swe.ssa.esa.int/web/guest/space-radiation)
Space Weather Changes in the interplanetary field due to phenomena of galactic and solar cosmic radiation that affect the Earth's atmosphere. Need for a timely and valid forecast of changes in space weather Numerous impacts on technological and biological systems.
Cascades Max altitude of the cascade evolution ~ 15 – 20 km
Frequent flying altitude for airplanes Radiation dose calculations at this altitude is critical!
Some well-known works and applications http://www.seibersdorf-laboratories.at assessment of cosmic radiation exposure at flight altitudes during quiet and extraordinary solar conditions Seibersdorf Laboratories
Cari6
http://www.sievert-system.org Calculation of the radiation dose received during a flight Institute de Radioprotection et de Surete Nucleaire
http://jag.cami.jccbi.gov/cariprofile.asp Galactic Radiation Received In Flight Federal Aviation Administration Office Of Aerospace Medicine Civil Aerospace Medical Institute
https://www.ikp.kit.edu/corsika/ Simulation of cosmic ray showers Karlsruhe Institute of Technology (D. Heck, J. Knapp, J.N. Capdevielle, G. Schatz, T. Thouw) CRII - Cosmic Ray Induced Ionization http://cosmicrays.oulu.fi/CRII/CRII.html Calculation of ionization in the atmosphere University of Oulu (I.G. Usoskin, G.A. Kovaltsov, I.A. Mironova)
ATMOCOSMICS-MAGNETOCOSMICS-PLANETOCOSMICS: http://cosray.unibe.ch/~laurent/planetocosmics/ Simulation of cosmic rays in the atmosphere, magnetosphere and at other planets University of Bern (L. Desorgher, M. Gurtner, and E.O. Flückinger, M.R. Moser, R. Bütikofer)
http://cosray.phys.uoa.gr/index.php/dyastima
DYASTIMA is based on the well known simulation toolkit Facts: It has been established in High Energy Physics It provides modeling of interactions for a wide energy range It provides accuracy It provides support and updates It has more than 10000 citations
Usage: Determination of geometry Determination of beam Determination of interactions Access to particles that are moving in the simulation volume References • Agostinelli S., Allison J., Amako K., Apostolakis J. et al. for the Geant4 collaboration, NIM A, Volume 506, Issue 3, pp. 250-303, 2003 • Allison J., Amako K., Apostolakis J., Araujo H. et al. for the Geant4 collaboration, IEEE Transactions on Nuclear Science, vol.53, no.1, pp. 270-278, 2006 • Allison J., Amako K., Apostolakis J., Arce P. et al. for the Geant4 collaboration, NIM A, Volume 835, pp. 186-225, 2016 • Geant4, http://geant4.cern.ch
DYASTIMA has been implemented as a part of a PhD (Paschalis et al., 2014). The aim was the implementation of an easy to use simulation of cosmic ray showers within the Earth’ atmosphere First version: Input via text files Output to csv files Atmosphere with constant composition No resume
Reference P. Paschalis et al., New Astronomy, 33, 26-37, 2014
DYASTIMA has been implemented as a part of a PhD (Paschalis et al., 2014). The aim was the implementation of an easy to use simulation of cosmic ray showers within the Earth’ atmosphere Second version: Input via GUI Storing results to DB Output to csv files Atmosphere with varying composition Supports resume
Reference P. Paschalis et al.,, New Astronomy, 33, 26-37, 2014
14th ESWW
Input parameters
Output parameters
Geometry
• composition and temperature profile of the atmosphere • radius, g, surface pressure, magnetic field • flat/ spherical model
@ tracking layers • energy • time • direction • position • energy deposition
Beam • spectrum of each particle • directional limits of each particle Interactions • reference physics list • range/energy cuts Tracking • Altitudes/layers for tracking
@ production time • energy
DYASTIMA-R addition • Dose rate at each tracking altitudes/layers • Equivalent dose rate
Module 1 GUI
Structure of the last version Module 3 DB
•Stores the results
•Implementation in VB.NET •Handles the simulation scenarios and processes / prepares the input parameters for the simulation module •Exports the results from the DB
Module 2 SIMULATION COMPONENT
•Implementation in C++ •Handles the simulation using the Geant4 toolkit •Flushes the results to the DB
Module 4 DOSE CALCULATION • Implementation in C++ •Performs a simulation using the Geant4 toolkit •A human phantom is exposed at the flux that is calculated at an altitude
human phantom (optional) airplane shell
P. Paschalis, H. Mavromichalaki, L.I. Dorman , C. Plainaki, D. Tsirigkas, New Astron., 33, 26-37, 2014
L.I. Dorman , P. Paschalis, C. Plainaki, H. Mavromichalaki, Proc. 34th ICRC2015
C.Plainaki, P. Paschalis, D. Grassi, H. Mavromichalaki, M.Andriopoulou, Ann. Geophys., 34, 595–608, 2016
P. Paschalis, A. Tezari, M. Gerontidou, H. Mavromichalaki, P. Nikolopoulou, XXV ECRS 2016 Proc.
First Results Using DYASTIMA-R
International Standard Atmosphere CR spectrum: CREME96
First Results Using DYASTIMA-R
International Standard Atmosphere CR spectrum: CREME96
ESA SSA Tender: RFQ/3-13556/12/D/MRP P3-SWE-III WP 2130: Implementation of new UoA Federated Products Name: DYASTIMA Contractor: University of Athens Duration: 9 months Issue Date: July 2017 WP Manager: Prof. Em. H. Mavromichalaki
On going Plans 1. New version of DYASTIMA • • • •
Improvements regarding the input format Improvements regarding the output format Integration of dosimetry addition Documentation
3. Web access • Dedicated website for the product • Information about DYASTIMA • Database • Examples • Publications
2. Database • Runs for different particle energies and different atmospheric models • Results regarding the showers and the dose accumulated instantly based on the given conditions by the user
References •
Agostinelli S., Allison J., Amako K., Apostolakis J. et al. for the Geant4 collaboration, "Geant4 - a simulation toolkit", NIM A, Volume 506, Issue 3, pp. 250-303, 2003
•
Allison J., Amako K., Apostolakis J., Araujo H. et al. for the Geant4 collaboration, "Geant4 developments and applications", IEEE Transactions on Nuclear Science, vol.53, no.1, pp. 270-278, 2006
•
Allison J., Amako K., Apostolakis J., Arce P. et al. for the Geant4 collaboration, "Recent developments in Geant4”, NIM A, Volume 835, pp. 186-225, 2016
•
Geant4, http://geant4.cern.ch
•
P. Paschalis et al.: ''Geant4 software application for the simulation of cosmic ray showers in the Earth's atmosphere'', New Astronomy, 33, 26-37, 2014
•
C.Plainaki, P. Paschalis, D. Grassi, H. Mavromichalaki, M.Andriopoulou, “Solar energetic particle interactions with the Venusian atmosphere”, Ann. Geophys., 34, 595–608, 2016
•
L.I. Dorman , P. Paschalis, C. Plainaki, H. Mavromichalaki, “Estimation of the cosmic ray ionization in the Earth's atmosphere during GLE71”, Proc. 34th ICRC2015
•
P. Paschalis, A. Tezari, M. Gerontidou, H. Mavromichalaki, P. Nikolopoulou, “Space Radiation exposure calculations during different solar and galactic cosmic ray activities”, XXV ECRS 2016 Proc.
Thank you!
We acknowledge the ESA – SSA Space Radiation Expert Service Center for funding this product (P3-SWE-III / WP 2130).
14th ESWW