Lead-lined doors for CT-SIM rooms — kilovoltage shielding calculated for your scanner and workload, delivered in finishes that belong in a modern imaging suite.
A CT simulator operates in the kilovoltage range — typically 80–140 kVp — which places its shielding problem in a completely different regime from megavoltage treatment rooms. The radiation reaching the door is scatter from the patient and gantry, and the required attenuation is achieved with millimetres rather than centimetres of lead. Light enough for elegant door engineering; real enough that it must be calculated, not guessed: scanner workload in a busy radiotherapy department is high, and the corridor behind the CT-SIM door is usually a fully occupied area.
We specify CT-SIM door lead linings from your scanner model, projected weekly workload and the occupancy factors of adjacent areas — commonly landing in the range of one to a few millimetres of lead equivalence, with the exact value confirmed in the project shielding report.
In a radiotherapy department the CT-SIM room sits at the start of the same patient pathway that ends at the LINAC vault. Specifying the CT-SIM door, the brachytherapy suite and the treatment room doors through one engineering partner keeps interlock philosophy, finish language and documentation consistent across the department — and gives your project one responsible party for every shielded opening.
| Parameter | Typical Configuration |
|---|---|
| Radiation regime | Kilovoltage scatter (80–140 kVp CT) |
| Shielding | Lead lining, commonly 1–3 mm Pb equivalence per calculation |
| Door types | Hinged single/double leaf · concealed sliding |
| Options | Lead glass window · access control · warning light integration |
| Finish | Wood veneer, laminate, custom clinical finishes |
| Design basis | Project shielding report · scanner vendor site planning · local regulations |
CT-SIM doors commonly carry between one and a few millimetres of lead equivalence — but the correct value depends on your scanner, weekly workload and what sits behind the door. We confirm the exact lining in the project shielding calculation rather than applying a blanket figure.
Yes — that is exactly how we build them. The lead lining sits invisibly inside the leaf and frame, while the visible surfaces carry wood veneer, laminate or custom finishes matched to your interior.
Yes. A lead glass window with shielding equivalence matched to the door lining can be integrated into the leaf where the room layout benefits from direct visual contact with the patient.
No — PET-CT rooms must additionally shield the 511 keV annihilation photons from the injected patient, which are far more penetrating than CT scatter and demand a substantially different specification. We design doors for both modalities, each from its own calculation.