X-ray microfluorescence, microradiography and tomodensitometry provide a broader view of the archaeological space.

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G.Treyvaud, Archaeologist Ph.D / Professor. P. Francus / INRS ETE

X-ray microfluorescence, microradiography and tomodensitometry provide a broader view of the archaeological space

N

o

_{:
GA44A-‐0127}

Characteriza6on of archaeological soils

_{Chemical
and
physical
characteriza6on}

of old materials with ITRAX and the CT scan

Loyola Site, Guyane

Fort Ville Marie, Montreal

ITRAX

Cimentery and Blacksmith Shop

Ø  Caracterize the chemical elements from the decomposi6on

of human body: Calcium, Selenium, Phosphore, Potassium, Sulfur, Copper Magnesium, Zinc, lead

Ø  Localize burials and cemetery

Ø  Iden6ﬁca6on of types of occupa>ons by chemical elements

in archaeological soils, kitchen, dump, ar>san workshops, etc ...

Ø  Land management and physical perturba6on on soil

Ø  Non-‐destruc6ve samples analysis/ objects integrity

CTScan

Characteriza6on of materials with density index; type of raw

material, sources of raw material, materials prepara>on, comparison between sites of raw materials used

Ø  Use in many areas of research in archeology Ø  Image cuts and 3D reconstruc>on

Ø  Survey and inventory of samples with core sampling,

archaeological

Ø  Stra6graphy and soils deﬁni6on further to human

occupa>on

Ø  Non-‐destruc6ve samples analysis/ objects integrity

Ø  Land management and physical perturba6on on soil

Example: Site ElFt-‐24 lac Arques

« La cache » Storage and survival box on the Cree historical site

! 1!

1_0.4_V90u_3*

!

Vol.!dentine+émail(mm3)! Vol.!cavité(mm3)! Vol.!total(mm3)! %!cavité! Mode!densité(HU)! Moyenne!densité(HU)! 445! 6! 451! 1.3! 2201! 2014!

!

Teeth Seal, James WoolleQ Université Laval

Density and deformity

Par>cipants: Louis-‐Frédéric Daigle, Mathieu Des Roches, Arnaud de Coninck

Ceramic shard with lead glaze

Prehistoric ceramic shard

o  Iden6ﬁca6on of poTery

types on the basis of tempering

agents

o  Caracteriza>on of raw

materiel

o  Iden>ﬁca>on and propor>ons

of inclusions and air spaces

o  Iden6ﬁca6on of manufacturing

Techniques

o  Density of ceramic paste and

other materials Lead Air spaces Air spaces Agents

MULTIDISCIPLINARY LABORATORY OF CT-‐SCAN FOR NON-‐MEDICAL USE

This laboratory allows for non-‐destruc>ve measurements of the internal

density varia>ons on sta>c body (internal structure, porosity, etc.) or dynamic phenomena, mainly hydrodynamic (experiment in 4D). It is the only facility of its kind in a canadian university.

The ITRAX™ Core scanner was developed by Cox Analy>cal Systems.

The principle of opera>on is based on the simultaneous acquisi>on of

microdensity (radiography) and microcomposi>onal varia>ons (XRF) using two separate X-‐ray detec>on systems. Moreover, colour informa>on and magne>c suscep>bility are provided through respec>vely a high resolu>on

digital line-‐scanning camera and a magne>c suscep>bility sensor incorporated in the system. The analysis is performed without touching the sample surface and is completely non-‐destruc>ve.

Lab CT Scan

Laboratoire mul>disciplinaire de tomodensitométrie Pour les ressources naturelles et le génie civil

3cm

Éch : 1Kg Éch : 1Kg

X-ray microfluorescence, microradiography and tomodensitometry provide a broader view of the archaeological space.

G.Treyvaud, Archaeologist Ph.D / Professor. P. Francus / INRS ETE