Half-value layer (inches) to half-value layer (cm)
Type a value in HVL in to get it in HVL cm instantly.
6.096HVL cm
That's about the same as concrete (Co-60). Cutting the beam a thousandfold takes about 60.75 cm of it.
What it means
How strong a shield is that?
Narrow-beam attenuation. Real shields let through more because of scattered radiation (build-up); design shielding to the relevant standards.
The math
How to convert HVL in to HVL cm
HVL = ln 2 ÷ μ = 0.693 ÷ μ; TVL = ln 10 ÷ μ = 2.303 ÷ μ.
Example: 2.4 HVL in = 6.096 HVL cm.
Every unit
That shielding in every unit
Tables
HVL in to HVL cm conversion table
| HVL in | HVL cm |
|---|---|
| 0.00394 HVL in | 0.0100076 HVL cm |
| 0.00984 HVL in | 0.0249936 HVL cm |
| 0.0197 HVL in | 0.050038 HVL cm |
| 0.0394 HVL in | 0.100076 HVL cm |
| 0.0984 HVL in | 0.249936 HVL cm |
| 0.189 HVL in | 0.48006 HVL cm |
| 0.394 HVL in | 1.00076 HVL cm |
| 0.472 HVL in | 1.19888 HVL cm |
| 0.787 HVL in | 1.99898 HVL cm |
| 1.89 HVL in | 4.8006 HVL cm |
| 2.4 HVL in | 6.096 HVL cm |
| 3.94 HVL in | 10.0076 HVL cm |
| 4.33 HVL in | 10.9982 HVL cm |
HVL cm to HVL in conversion table
| HVL cm | HVL in |
|---|---|
| 0.01 HVL cm | 0.00393701 HVL in |
| 0.025 HVL cm | 0.00984252 HVL in |
| 0.05 HVL cm | 0.019685 HVL in |
| 0.1 HVL cm | 0.0393701 HVL in |
| 0.25 HVL cm | 0.0984252 HVL in |
| 0.48 HVL cm | 0.188976 HVL in |
| 1 HVL cm | 0.393701 HVL in |
| 1.2 HVL cm | 0.472441 HVL in |
| 2 HVL cm | 0.787402 HVL in |
| 4.8 HVL cm | 1.88976 HVL in |
| 6.1 HVL cm | 2.40157 HVL in |
| 10 HVL cm | 3.93701 HVL in |
| 11 HVL cm | 4.33071 HVL in |
Quick answers
Quick answers
- How many HVL cm is 1 HVL in?
- 1 HVL in is 2.54 HVL cm.
- How many HVL cm is 10 HVL in?
- 10 HVL in is 25.4 HVL cm.
- How many HVL cm is 2.4 HVL in?
- 2.4 HVL in is 6.096 HVL cm.
The units
About these units
Half-value layer (inches) (HVL in)
Thickness that halves the beam, in inches.
Half-value layer (cm) (HVL cm)
Thickness that halves the beam, in cm.
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