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JRA1 – Low Background Techniques
WP1 : Measurement of the backgrounds in the Deep Underground sites
WP coordinator: N. Ferrari
Objective: To measure the environmental background components (in particular neutrons,
gammas, muons, and Rn contamination in the air and in the water) in the four underground
sites. Special effort will be devoted in order to collect data in the different sites in a coherent, coordinated, and compatible way.
Year 1
Collecting existing data
Planning new measurements
Gamma rays: set-up instrumentation
Neutrons: set-up instrumentation
Gamma and neutrons: survey in underground labs
Set-up of upgraded Radon monitoring systems
Radon monitoring
Data analysis and interpretation
Implementation of results in database
Opening and optimising database for UG lab users
Year 2
Year 3
Year 4
J1-WP1 The working group
LNGS
N. Ferrari, C. Tomei, M. Laubenstein, A. Ianni, C. Broggini, C. Cattadori, L. Miramonti,
W. Plastino, C. Vignoli, G.L. Raselli, A. Cesana
LSM
G. Gerbier, D. Lalanne
LSC
M.L. Sarsa, G. Luzon, S. Cebrian, M. Martinez, B.Beltran, J. Ruz, A. Rodriguez, H. Gomez
Boulby
V. Kudryavtsev, J. McMillan, J. Lewin, B. Camanzi, E. Tziaferi
Proposed actions for year 1
 Collect existing data for backgrounds
 Prepare contents for WP1 web page
 Survey of environmental gamma-ray background (all labs)
 Start projects for neutron monitoring
 Rn monitoring in the air and water (LNGS, ...)
 ...
Collecting existing data
A list of existing documentation (papers or reports) of the following data should be prepared by
local coordinators for WP1 in the different labs:
1.
neutron background measurements in the underground lab
2.
environmental gamma rays in the underground lab
3.
Measurements on radiopurity of rock, concrete, etc.
4.
Rn monitoring in the air and in the water
5.
Muon flux in the underground lab
6.
...
For internal reports or non published materials scanned versions of the documents could be
prepared
Prepare contents for WP1 web page
Responsability: LNGS
Location: on the main web page of JRA1 at LSC
Survey of environmental gamma ray background
LNGS: undergoing (M. Laubenstein, N. Ferrari)
Boulby: J. Kisiel with TARI project
.....
Measurement of radiopurity of rock, concrete, etc..
LNGS: undergoing (M. Laubenstein)
.....
Projects for neutron monitoring
LNGS: Pv group is going to start a measurement with 2 liquid scintillator cells
we have an offer from INR to have at LNGS the 3He/liq. scintillator detector used in the
past at Baksan and Finland
.....
Rn monitoring in the air and water
LNGS: ongoing since a few years (M. Laubenstein, W. Plastino, SPP)
.....