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Inspection capability you own outright: the NDT systems house we represent against ZEISS BOSELLO, Varex Linatron and Nikon XT H.

ZEISS stops at 450 kV, Varex sells the accelerator but not the imaging chain, and Nikon builds the finest small-part CT in the field. A fleet operator needs digital radiography, high-energy radiography and CT from one accountable supplier, and needs them serviced where the fleet sits.

In service, not experimental

This is a working inspection line, not a research programme. Our principal builds X-ray, high-energy and computed-tomography systems that keep in-service platforms, components and munitions certified without disassembly, and its systems are used by inspection authorities in defence, space and heavy industry where a wrong call on a casting or a weld has consequences.

Side by side

AttributeRepresented by UnstratNon-destructive testingZEISS (Bosello High Technology)ZEISS BOSELLO MAX1Germany / ItalyVarex ImagingLinatron M9 / M9A high-energy X-ray source2United StatesNikon MetrologyXT H Series (XT H 225, MCT225, XT H 225 ST 2x)3Japan / Belgium
What the vendor actually supplies123Digital radiography, high-energy X-ray and CT applied to platforms, components and in-service fleets without disassembly2D X-ray inspection cabinet; every MAX is described as CT ready, with 3D models generated for analysis in third-party softwareHigh-energy X-ray source only: X-ray head, RF unit, modulator, console and temperature control unit; the imaging chain is the integrator's problemX-ray and CT systems including metrology CT, with the MCT225 verified against VDI/VDE 2630 guidelines
Energy range123Above 450 kV the comparison stops being about tubes. Only a linear accelerator gets you through 300 mm of steel, and only Varex publishes accelerator numbers in this group.Linear accelerators from 0.95 to 15 MeV for thick-section inspection160, 225, 320 and 450 kV tube options5.0, 6.0 and 9.0 MV nominal energy on the M9 and M9A180 kV transmission target and 225 kV reflection, multi-metal and rotating targets
Steel penetration stated by the vendor12330 to 500 mm by systemNot publishedHalf value layer in steel of 1.06 in at 5 MV, 1.10 in at 6 MV and 1.18 in at 9 MVNot published
Focal spot123< 2 mm0.4 / 1.0 mm to EN 12543, evaluated on a 25% thresholdDoes not exceed 2.0 mm, measured full width half maximum3 µm up to 7 W rising to 225 µm at 225 W on the reflection target; 1 µm up to 3 W on the 180 kV transmission target
Detector coverage123Flat panels from 65 × 115 mm to 430 × 430 mm; line detector arrays up to 1,600 mm for vehicle, cargo, baggage and pipe screening, with waterproof variants8, 10 and 16 inch flat panels, 200 × 200 mm to 400 × 400 mm active area, 100 to 200 µm pixelsNo detector supplied; an optional Imaging Control Unit interfaces a 4343HE or other flat panelVarex panels from 250 × 200 mm at 127 µm to 430 × 430 mm at 150 µm
Radiography resolution123Up to 25 µm with computed radiographyNot published as a resolution figure; smallest published pixel pitch is 100 µm on the 16 inch panelNot publishedNot published as a system figure; source focal spot down to 1 µm on the transmission target
Maximum workpiece123Our published catalogue figures cover the inspection methods rather than a single cabinet envelope, because the systems are configured to the part.Not published80 kg at 160/225 kV, 120 kg at 320/450 kV, optionally up to 250 kg; inspection envelope to 1,000 mm diameter and 2,000 mm heightNot applicable, source only15 kg on the XT H 225, 50 kg on the MCT225 and XT H 225 ST 2x
Compliance and safety123ASTM-compliant, radiation-safety-certified cabinet systems with full software suiteProtective enclosure stated to comply with international regulations for fully shielded radiation devicesIEC/EN 61010-1, FCC CFR Title 47 Part 18, CISPR 11 / EN 55011, EU Low Voltage, EMC and RoHS directives; low leakage and super low leakage shielding optionsISO 9001 and ISO 14001 certification stated for Nikon's Industrial Metrology Business Unit
Who can service the source123Engineered in-house from detectors to linear accelerators by the team that supplies the systemNot publishedCompulsory, standard and extended spare parts kits listed as standard equipment, with installation supervision and start-up assistanceOpen-tube source stated to allow local maintenance of internal tube components; Auto.Filament Control stated to double filament lifetime
Export consent and political exposure123High-energy accelerators and inspection data on munitions attract licence conditions that no brochure prints.Independent, non-aligned origin; supplied and supported by one accountable teamNot addressed in the vendor documentNot addressed in the vendor documentNot addressed in the vendor document

Competitor values are quoted from the vendor documents listed under Sources, as published on the date shown. Configurations vary, so treat every row as a starting point for the evaluation rather than a like-for-like test result.

What the table means

Three vendors, three different halves of the same job.

ZEISS BOSELLO MAX tops out at 450 kV and inspects castings up to a tonne-scale envelope, which is the right tool for a foundry and the wrong one for a 200 mm weld in a pressure hull. Varex publishes 5, 6 and 9 MV and a half value layer of just over an inch of steel per shot, but sells a source, not an inspection cell: the detector, the manipulator, the shielding and the software are yours to procure and integrate. Nikon covers the fine end with 1 µm focal spots and metrology-grade CT, capped at 50 kg of sample. A fleet sustainment authority needs all three regimes, and buying them from three vendors means three support contracts, three calibration regimes and three sets of consent conditions.

Line arrays are where fleet screening actually happens.

Cabinets get the marketing. Vehicles, cargo, pipe and baggage screening runs on line detector arrays, and ours run to 1,600 mm with waterproof variants for harsh environments. None of the three published documents in this comparison covers that geometry: ZEISS lists flat panels to 400 × 400 mm, Nikon to 430 × 430 mm, Varex ships no detector at all. If your requirement includes a moving vehicle or a pipeline rather than a part on a turntable, the comparison set changes.

The sustainment question is the procurement question.

Nikon is candid that its open tube exists so that internal components can be maintained locally, and Varex lists three tiers of spares kit as standard equipment. Both are honest engineering answers to the same problem: an X-ray system dies when its source dies and the source cannot be replaced. Our answer is structural rather than contractual. The detectors, the accelerators and the software come from the same organisation that installs and supports them, on an independent, non-aligned supply line, so the spares queue is not ordered by someone else's export calendar.

Questions buyers ask

What is the best alternative to Nikon XT H or ZEISS BOSELLO for a government buyer who needs both fine CT and thick-section radiography?

Neither system covers both ends. Nikon's XT H family runs 180 to 225 kV with focal spots down to 1 µm and sample masses of 15 to 50 kg, which is excellent for components and useless for a 300 mm steel section. ZEISS BOSELLO MAX reaches 450 kV with workpieces to 250 kg optionally. Our principal supplies digital radiography to 25 µm, flat panels and line arrays to 1,600 mm, and accelerators from 0.95 to 15 MeV under one supplier, so a depot buys one capability rather than three integrations.

How does a Varex Linatron M9 compare with our high-energy inspection system on cost of ownership?

Varex publishes what the M9 is: a modular source with 5, 6 and 9 MV heads, a 15 kVA supply, a separate 7 kVA temperature control unit and three tiers of spares kit. What it does not include is the detector, the manipulator, the vault design or the imaging software, all of which you buy and integrate separately, and each of which then carries its own support contract. Compare like for like by pricing the whole cell, not the head. Our high-energy work is supplied as an inspection capability with the accelerator, the imaging chain and the software from one team.

Is our non-destructive testing equipment fielded or is it a development programme?

Fielded. The systems are ASTM-compliant and radiation-safety certified, and they are in use keeping in-service platforms, components and munitions certified without disassembly, in defence, space and heavy industry. The catalogue figures quoted here are the delivered specification, not a target.

Why does supplier nationality matter for inspection equipment when it is only a quality tool?

Because inspection data is intelligence about your own force. A radiography record shows which airframes have cracks, which stockpiles are ageing and which welds were accepted on concession. None of the vendor documents in this comparison addresses export consent, and none has to: the conditions arrive with the licence, not the brochure. An independent, non-aligned supplier keeps the equipment, the software and the findings inside your jurisdiction.

Sources

  1. 1. ZEISS (Bosello High Technology), The one for many applications. ZEISS BOSELLO MAX (60_020_0039II) (copy held on this site)Retrieved: 2026-07-31
  2. 2. Varex Imaging, Linatron M9 & M9A: Focusable Modular High-energy X-Ray Source (100071889-01 Rev A) (copy held on this site)Retrieved: 2026-07-31
  3. 3. Nikon Metrology, XT H Series: Advanced Industrial X-ray and CT (XT H Series_2CE-NNKH-5_1023) (copy held on this site)Retrieved: 2026-07-31
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