Transcript Development of a standard library of background simulation codes JRA1

JRA1
WP2
Development of a standard
library of background
simulation codes
Annex I
description of work
Specific objectives
Participants
4 years execution plan
Special Cross-links
23/05/2016
IDM2004
Gloria Luzón (LSC)
Specific objectives
•
To produce a reliable and well tested Monte Carlo
library of simulation codes to identify and quantify the
components of the various environmental backgrounds
in underground sites as well as in a variety of
experiments and conditions, with a view to interpreting
current data and designing new underground
experiments.
•
The joint research effort should optimise the know-how
of the different participants; experimental results from
WP1 will be essential to validate the library codes.
•
A coherent and tested library codes will be made
available for the users of the Labs; The codes will be
interfaced with the database from WP1.
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Gloria Luzón (LSC)
Participants
Organisation
Short name
Role
Universidad de
Zaragoza
UNIZAR
•Coordination of WP2
•Study and implementation of
MC background simulation codes
University of Sheffield USFD
•Deputy coordination of WP2
•Study and implementation of
MC background simulation codes
Commissariat à
l’Energie Atomique &
Centre National de la
Recherche Scientifique
CEA
&
CNRS
•Study and implementation of
MC background simulation codes
Istituto Nazionale di
Fisica Nucleare
INFN
•Study and implementation of
MC background simulation codes
Technische Universität
23/05/2016
München
TUM
•MC simulation codes for
background
IDM2004
neutron
Gloria Luzón (LSC)
Other entities foreseen to
contribute
Organisation
Role: Contribution to
Rutherford Appleton
Laboratory
•Study and test of MC background simulation
codes
Forschungszentrum
Karlsruhe
•Study and test of MC background simulation
codes (neutrons)
University of
Dortmund
•Study and test of MC background simulation
codes (gammas and neutrons)
University of Silesia
•MC simulation codes for neutrons and muons
Politecnico di Milano
•Neutron background simulation
23/05/2016
IDM2004
Gloria Luzón (LSC)
Milestones
and
deliverables
Tasks
Year 1
23/05/2016
• Existing codes compared and discussed.
• Platform, language and structure of the library
fixed.
• First set of MC codes for relevant background
components and instrumentation ready.
• First “test” version of MC libraries
implemented.
• Technical report prepared.
IDM2004
Gloria Luzón (LSC)
Milestones
and
deliverables
Tasks
Year 2
23/05/2016
• MC codes tested on second survey of
background measurements from WP1.
• Program of refinement of the codes and
documentation defined.
• Second “test” version of standard MC libraries
implemented (completely tested on data from
WP1
• Technical report prepared.
IDM2004
Gloria Luzón (LSC)
Milestones
and
deliverables
Tasks
Year 3
23/05/2016
• MC tested on second survey of background
measurements from WP1
• Final version of standard MC codes
implemented on computing infrastructures of
each lab.
IDM2004
Gloria Luzón (LSC)
Milestones
and
deliverables
Tasks
Year 4
23/05/2016
• Open the MC library to the Underground Lab
users.
• Complete and make available to the users the
relevant documentation.
• MC library to the Underground Lab users.
• Complete documentation available.
IDM2004
Gloria Luzón (LSC)
Special Cross-links
JRA1-WP2
Development of a standard
library of background
simulation codes
JRA2(IDEA)
WP3-B1
N3-BSNS
Background
Simulation,
Neutron-Shield
and Muon-Vetos
23/05/2016
Study on
Cosmogenic
Induced Activity
IDM2004
Gloria Luzón (LSC)
Departure line
Identified sources of background
Some standard codes
Publications
Comparison with experimental
data
23/05/2016
IDM2004
Gloria Luzón (LSC)
Sources of background
rock
Cosmic Rays
Muons
m-induced Neutrons
23/05/2016
Detector
IDM2004
Gloria Luzón (LSC)
Additional sources
Radon
Surface
Cosmogenic activation
Rock and materials
Contamination
Alpha, Beta
Gamma
Neutrons: fission and a,n
Standard Codes
• Alpha, beta and gamma background
Widely used
GEANT4
Advanced example for
underground physics
23/05/2016
IDM2004
Gloria Luzón (LSC)
Standard Codes
Neutron background
rock
activity
Rate and
spectrum
for 238U
fission and
(a,n)
Theory
Calculation
SOURCES
23/05/2016
Measurement
n at lab
n flux and
spectrum
at lab
FLUKA
MCNP
GEANT4
IDM2004
Gloria Luzón (LSC)
counting
rates at
detector
FLUKA
MCNP
GEANT4
Muon induced Neutron background
muons
Flux and
spectrum
for muons
underground
Calculation
MUSIC,
MUSUN,
SIAM,
FLUKA
23/05/2016
Measurement
muons at lab
Flux and
spectrum
of induced
neutrons
FLUKA
modified GEANT3
GEANT4
IDM2004
Gloria Luzón (LSC)
counting
rates at
detector
MCNP
GEANT4
GEANT3
FLUKA
Other codes
• Cosmogenic induced activity
IDEA web- page
http://idea.dipscfm.uninsubria.it/
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IDM2004
Gloria Luzón (LSC)
Publications

H. Wulandari et al. Proceedings of IDM2002 (York, UK, 2-6 September 2002), p.
464.

G. Chardin and G. Gerbier. Proceedings of IDM2002 (York, UK, 2-6 September
2002), p. 470.

V. Kudryavtsev et al. Proceedings of IDM2002 (York, UK, 2-6 September 2002),
p. 476.

V. A. Kudryavtsev et al. NIM in Phys. Res. A, 505 (2003) 688.

G. Gerbier. Talk at TAUP-2003; see TAUP-2003 web-site.

S. Cebrian. Talk at TAUP-2003; see TAUP-2003 web-site.

H. Wulandari. PhD thesis – TUM (2003).

H. Wulandari et al, hep-ex/0401032

H. Wulandari et al, Astrop. Phys. in press, hep-ex/0312050

J. M. Carmona et al. Astr Phys. 21 (2004) 523..

M. J. Carson et al. Astr. Phys. (2004), in press; hep-ph/0404042.
23/05/2016
IDM2004
Gloria Luzón (LSC)
Comparison experimental results
• Published neutron flux measurements at Gran Sasso,
Modane, Canfranc, CPL (Korea) and others.
• Planned neutron flux measurements at Gran Sasso,
Modane, Canfranc, Boulby as proposed in JRA1
(ILIAS).
• Measurements of muon-induced neutrons at various
depths underground: neutron yields, energy spectra,
lateral distributions etc.: LVD, KARMEN, LSD etc.
• Measurements of muon-induced neutrons using
active vetoes for dark matter detectors (existing and
planned): Canfranc, Modane, Boulby, Gran Sasso.
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IDM2004
Gloria Luzón (LSC)
First plan of work and
deliverables
Analysis of MC codes.
Comparison experimental data
Deliverables
23/05/2016
IDM2004
Gloria Luzón (LSC)
Analysis of MC codes
• To identify the tasks for which the code
is suitable.
• To compare simulations results of
different codes .
• Problems, bugs and questions.
23/05/2016
IDM2004
Gloria Luzón (LSC)
Outputs from the simulations: to check
rock
activity
Rate and
spectrum
for 238U
fission and
(a,n)
Theory
Calculation
SOURCES
23/05/2016
n flux
and spectrum
Measurement
before
n atdetector
lab
n flux and
spectrum
at lab
MCNP
GEANT4
IDM2004
Gloria Luzón (LSC)
counting
rates at
detector
MCNP
GEANT4
Outputs from the simulations: to check
muons
Flux and
spectrum
for muons
underground
Calculation
MUSIC,
MUSUN,
SIAM,
FLUKA
23/05/2016
nMeasurement
yields
n flux and spectrum
muons at lab before detector
Flux and
spectrum
of induced
neutrons
FLUKA
modified GEANT3
GEANT4
IDM2004
Gloria Luzón (LSC)
counting
rates at
detector
MCNP
GEANT4
GEANT3
FLUKA
Comparison experimental data
• To compare, if possible, simulation
results of each code with available
experimental data.
• To use the JRA1-WP1 data on
background contributions to compare
with codes simulations.
23/05/2016
IDM2004
Gloria Luzón (LSC)
Inputs for the simulations: from JRA1/N2
rock
activity
Rate and
spectrum
for 238U
fission and
(a,n)
Theory
Calculation
SOURCES
23/05/2016
Measurement
n at lab
n flux and
spectrum
at lab
MCNP
GEANT4
IDM2004
Gloria Luzón (LSC)
counting
rates at
detector
MCNP
GEANT4
Relevant features of codes: to be examined
• Physic model for neutrons: processes, data libraries, energy ranges
Measurement
• Geometry capabilities
n at lab
Rate(toand
• Biasing options
save CPU time)
• Energy detection
capabilities: nuclear recoil?
spectrum
n flux and
• Support, availability
counting
for 238Uof code source
rock
spectrum
• …
rates at
fission and
activity
Theory
Calculation
SOURCES
23/05/2016
(a,n)
at lab
MCNP
GEANT4
IDM2004
Gloria Luzón (LSC)
detector
MCNP
GEANT4
Relevant features of codes: to be examined
Measurement
• Physic model for neutrons:
processes, data libraries, energy ranges
muons
at lab Measurement
• Physic model for muons: nuclear
reactions?
n at lab
Flux and
• Geometry capabilities
• Biasing options
(to save CPU time)
Flux and
spectrum
• Energy detection
capabilities: nuclear recoil?
counting
spectrum
for muons
• Support, availability
of code source of induced
rates at
undermuons
• …
neutrons
ground
Calculation
MUSIC,
MUSUN,
SIAM,
FLUKA
23/05/2016
FLUKA
modified GEANT3
GEANT4
IDM2004
Gloria Luzón (LSC)
detector
MCNP
GEANT4
GEANT3
FLUKA
Deliverables
•
To create a web-page for the working group
with :
–
–
–
•
information about the code comparison and
“evaluated” results.
A code repository containing the codes and
modified programs To use the JRA1-WP1 data
on background contributions to compare with
codes simulations.
List of publications.
Technical report on the first analysis of
codes
23/05/2016
IDM2004
Gloria Luzón (LSC)