| High Density
Concrete Block
 Description:
NELCO’s high density concrete block is designed for new construction or
shielding upgrades for linear accelerators, H.D.R. rooms, and all
therapeutic modalities requiring shielding materials. The block is
manufactured in a standard size with three densities available to
accommodate different physics requirements. For gamma radiation, higher
density blocks (incorporating a larger concentration of steel aggregate) are
more commonly utilized. For maximization of neutron shielding, lower density
units are a viable solution.
H.D. block is manufactured in an “N” interlocking design. It can be
utilized for maze walls, vault walls or vault ceilings, with or without
mortar (for modularity), depending on physics requirements and construction
design. Ceilings are generally supported by an independent steel support
structure.
All NELCO H.D. concrete block is manufactured under strict NELCO quality
guidelines.
 |
|
Product |
High density concrete block |
|
Design |
Interlocking modular units “N-Loc” |
|
Usage |
Low & High Energy Linear Accelerator Vaults, Proton therapy, I.M.R.T.,
H.D.R., Gamma Knife, Cyber-Knife, Cobalt |
|
Dimensions |
6"H x 6"W x 12"D |
|
Construction |
145 lbs./cu. ft.; 240 lbs./cu. ft.; 288 lbs./cu.ft. |
|
Weight |
36/60/72 lbs. |
|
Design criteria |
Optimal shielding design achieved with utilization of lowest-cost
shielding material, or combination of materials maximizing available
space allocation |
|
|
|
Versatility |
can be used in new or upgrade vault construction |
|
Interlocking |
“N” design assures shielding integrity |
|
Space savings |
higher density block saves space over traditional concrete
construction |
|
Modularity |
dry joint design easily uninstalled for relocation |
|
Fiscal considerations |
modular designs may be eligible for accelerated depreciation and
after-tax savings |
|
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