VeriShield - Model V150 -Modular Radiation Shielding Component

VeriShield radiation shielding components are individual modules which are combined together to form a composite structure to create the required radiation attenuating environment. The constructed system retains the ability to be deconstructed and reused. VeriShield products are manufactured in a controlled environment and incorporate high Z aggregates (for photon attenuation) as well as neutron additive materials.

The VeriShield photon, neutron and electron shielding modules feature a design that presents a full 100% inter-locking edge. Lapping or alternating of the seams results in the prevention of straight line paths for radiation streaming. Modules interlock together to form a solid and stable structure

Standard VeriShield V150 modules are 5″ x 5″ x 10″ (127 x 127 x 254mm). Verishield V150 is also available in half thickness, with a nominal thickness of 2.5″ (63 mm).

Compressive strength is guaranteed to meet 2,800 psi. This product routinely easily surpasses this minimum and is typically on the order of 3,000 psi and above (depending upon final mix ratios). Grout materials will have a lesser compressive strength as water content is increased for working properties, but shall not be less than 2,800 psi when mixed on site.

Veritas VeriShield® V150 and VeriShield Grout
VeriShield V150 Shielding Modules and Grout are manufactured and packaged in a controlled environment and incorporate a combination of fine and coarse graded aggregates with a cement binder.

Designed to be mixed with portland cement, VeriShield Grout will remain volume stable in both wet and dry conditions, and remains stable without cracking or lamination from compressive loading, impact, lateral thrust, high heat or continuous vibration.

SIZE 5″ x 5″ x 10″ – 127 x 127 x 254mm
WEIGHT PER MODULE 21.5 lbs – 9.75 kg
DENSITY 150 lbs/cu ft – 2.4 g/cu. cm (median)
COMPRESSIVE STRENGTH 3,000 psi - 211 kgf/cm2
SOLUBILITY Insoluble
REACTIVITY Non-Reactive
MELTING POINT ^2,800ºF - 1,538ºC
BOILING POINT N/A
Grout compressive strength shall never be less than 2,800 psi when mixed on site.

COMPOSITION INFORMATION
Major Compounds
Chemical Name CAS Registry Number
Portland Cement *65997-15-1
Gypsum (calcium sulfate) 13397-24-5
* May contain crystalline silica 14808-60-7

PHYSICAL/CHEMICAL CHARACTERISTICS
Boiling Point N/A
Vapor Pressure (mm Hg) N/A
Melting Point N/A
Vapor Density (AIR-1) N/A
Evaporation Rate N/A
Solubility in Water N/A
Appearance & Odor Grey; no odor

FIRE AND EXPLOSION HAZARD DATA - NONE
REACTIVITY DATA
Stability: Stable

RADIATION ATTENUATION
Attenuation is based on interpolated data for some energies. The listed TVL’s represent the average tenth value thickness after 5 decades of attenuation. First TVT and equilibrium TVL’s may be available for thin barrier sections.

Veritas will provide calculations with appropriate safety factors to ensure attenuation requirements are met.

V150 Attenuation - Primary Barrier (1TVL=)
6MV: 13.5″ - 34.3 cm
10MV: 15.3″ - 38.8 cm
15MV: 17.0″ - 43.2 cm
18MV: 17.5″ - 44.4 cm
V150 Attenuation - Secondary Barrier (1TVL=)
6MV: 11″ - 28.0 cm
10MV: 12″ - 30.4 cm
15MV: 13″ - 33.0 cm
18MV: 13″ - 33.0 cm