Research reactors, hot cells, irradiation facilities and fusion device systems

    Commissioning software for research and fusion facilities where unique, often one-off systems still need the same evidence discipline as a commercial power reactor.

    Research reactors, hot cells, irradiation facilities and fusion devices rarely follow a standard commercial reactor's system architecture, but the regulator's expectation for evidence — safety classification, hold points, QA records, radiological controls — does not relax just because the facility is smaller or the design is bespoke. Deskely adapts the same register, ITP and certification model to a facility of any scale, so a university research reactor or a fusion test facility gets the same rigour without importing power-plant-scale overhead it does not need.

    Assets
    Reactor core, hot cells, irradiation rigs, magnets/plasma systems
    Test
    System functional test, radiological survey, first plasma readiness
    Scale
    Bespoke, often one-off facility design
    Gate
    Operating licence / authorisation to operate
    FUSION TEST FACILITY — MAGNET SYSTEMFACILITY COMMISSIONING RECORD SET · REV ATOKAMAK — TOROIDAL FIELD COILSTF-COIL-04Cryostat leak test pendingTAG REGISTERTF-COIL-06Toroidal field coil 6Records signedQUENCH-PROTMagnet quench protection …In testPFC-DIV-02Plasma-facing component, …PreservationRAD-MON-04Radiation monitor, experi…Punch openproportionate scaleunder one system hierarchy

    The problem

    A research or fusion facility is often one of a kind, and there is no off-the-shelf commissioning template waiting for it.

    Research reactors, hot cell facilities and fusion devices are frequently unique designs, built by a small technical team who may be commissioning a novel system for the first time anywhere, without the benefit of a fleet template or a large EPC's standard procedures.

    When commissioning records for a bespoke facility live in academic project files, PI notebooks and scattered vendor manuals, the regulator's licensing review cannot easily find the same evidence discipline it expects from a commercial reactor, even though the licensing framework applies regardless of facility size.

    Deskely lets a small technical team build a scaled register and ITP set proportionate to the facility's actual risk and complexity, so a research reactor or fusion device meets the regulator's evidence expectations without needing a power-plant-sized project controls team to do it.

    ONE-OFF CONFIGURATION, NO FLEET TO LEARN FROMResearch reactor / fusion deviceBespoke experimental systems change configuration between campaigns — the record must tooHOT CELL / IRRADIATION RIG — CONFIG CHANGE LOGExperiment rig swapped for campaign 12Shielding configuration re-verifiedInterlock logic updated for new rig geometryAs-run configuration filed against campaign 12WHY IT MATTERSNo sister unit to compare against — the config record is the only proof it's safe to run12distinct rig configurations run this year2open items before campaign 13 authorisedDeskely versions each experimental configuration as its own record, not a shared plant baseline.

    Setting up the register

    Bespoke systems and safety functions are tagged assets sized to the facility's actual complexity.

    Facility-specific design documents, whether a research reactor's core loading plan, a hot cell's shielding and manipulator drawings, or a fusion device's magnet and plasma-facing component list, are parsed into a register built to that facility's own hierarchy rather than a generic commercial template.

    Safety classification is applied proportionately: a research reactor's control rod drive system and radiation monitoring get full rigour, while a lower-risk auxiliary system is tracked with lighter but still traceable QA, avoiding both under- and over-engineering the evidence trail.

    Radiological control requirements — dose monitoring, contamination surveys, ALARA planning for hot cell manipulator work — are held in the same register as the mechanical and electrical commissioning records, giving a small facility one system to manage instead of several disconnected ones.

    1 · SOURCE DOCUMENTSMagnet and plasma-facing…48 componentsFacility-specific safety…proportionate scaleRadiological control req…1 ALARA planConfiguration change login progressPARSE + MATCHtag · description · drawing ref2 · ONE TAG REGISTERTF-COIL-06Toroidal field coil 6MAGNETQUENCH-PROTMagnet quench protection …SAFETYPFC-DIV-02Plasma-facing component, …PFCRAD-MON-04Radiation monitor, experi…RADPROTWO DOCUMENTS DISAGREEMagnet and plasma…Toroidal field coil 6Facility-specific…Abbreviated descriptionEngineer picks the sourcedecision loggedWeeks of transcription become a draft an engineer reviews.

    Execution

    System functional testing and safety verification are proven at a scale that matches the facility, without cutting corners on evidence.

    Reactor or device systems are functionally tested against their design safety function, with a research reactor's shutdown system, a hot cell's containment and ventilation, or a fusion device's magnet quench protection each proven with the same discipline as a commercial system, sized to the specific facility.

    First criticality or first plasma readiness reviews draw on the accumulated functional test and radiological survey record, with any deviation logged and dispositioned before the facility proceeds to its first controlled operation.

    Because research programmes evolve, configuration changes to the facility are tracked against the register, so a modified experiment or upgraded diagnostic does not silently invalidate a safety case built around the original configuration.

    CONFIGURATION CHANGE → CAMPAIGN READINESSHot cell rig, campaign 13Experiment rig configuration signed offSigned — geometry and shielding matchedInterlock logic updated for new rigIn progress — logic re-verificationRadiation and criticality safety reviewAwaiting interlock sign-offAs-run configuration filedGated on safety reviewCampaign 13 authorisationGated on full configuration record1of 5 gates cleared for campaign 1312distinct configurations run this yearEach campaign's configuration is its own record — no fleet baseline to fall back on.

    Operating authorisation and ongoing operation

    Operating authorisation is granted from a proportionate but complete record, not an assumption that a small facility gets a lighter regulatory bar.

    The operating licence or authorisation submission draws on the facility's complete functional test, radiological survey and safety classification record, giving the regulator the traceability it expects regardless of the facility's size or research mission.

    The as-built configuration and safety basis transfer into ongoing operations, so future experiment changes, diagnostic upgrades or maintenance activities reference an accurate, current baseline rather than the facility's original commissioning snapshot.

    Every test, survey and disposition carries a name, role and timestamp, giving a small research team the same defensible evidence trail a commercial reactor's much larger organisation produces.

    AUDIT QUERYTF-COIL-06Toroidal field coil 6, quench protection test disputedComplete evidence chain for TF-COIL-06FAT-TF06Factory acceptance testMagnet vendor18 DecQT-TF06Quench protection testFacility engineerpendingCFG-TF06Configuration change recordPrincipal investigator22 FebCERTIFICATEFP-TFToroidal field first plasma readinesspendingFacility safety officerPrerequisites demonstratedReadiness is blocked until the coil 6 quench protection test disposition is signed.

    First criticality or first plasma readiness with a small team's evidence base

    First criticality and first plasma are one-time, irreversible milestones, and a small facility has to produce the same standard of readiness evidence as a commercial reactor with a fraction of the staff to produce it.

    A research reactor's first criticality or a fusion device's first plasma shot cannot be quietly repeated if the readiness review later turns out to have missed something, which puts the same weight on a hold point being genuinely closed out on a research facility as it does on a commercial reactor, even though the team closing it out might be five people rather than five hundred.

    Independent nuclear assurance for a research or university facility is often a part-time role held by a senior staff member rather than a dedicated assurance department, and that reviewer needs the evidence organised well enough to complete a credible independent review in the limited hours they actually have available for it, not a research notebook they have to reconstruct into an argument themselves.

    Deskely structures the first criticality or first plasma readiness package the same way a commercial reactor's fuel load readiness package is structured — safety function test status, radiological survey completion, outstanding disposition items — so a part-time independent reviewer at a small facility can complete a rigorous review in an afternoon instead of a week.

    EXPERIMENTAL CONFIGURATION HISTORYHot cell / fusion device rigCONFIGURATION LOG — LAST 4 CAMPAIGNSCampaign 10Rig A, shielding config 1Campaign 11Rig B, shielding config 2Campaign 12Rig A, shielding config 1 (repeat)Campaign 13Rig C, shielding config 3 — pendingWHY IT'S TRACKED PER CAMPAIGNNo sister facility to compare against — each configuration stands aloneInterlock logic and shielding are re-verified whenever the rig changes12distinct configurations run this year1new configuration pending campaign 13Every configuration is its own signed record, not a shared plant baseline.

    The first-criticality and first-plasma evidence set

    Six record types carry a small team's evidence base to the same standard a much larger commissioning organisation would be expected to produce.

    Research reactors, hot cells, irradiation facilities and fusion devices are commissioned by teams a fraction of the size of a power reactor programme, but the evidence bar for first criticality or first plasma readiness does not shrink to match. These records are what that small team actually has to produce.

    RECORDS PRODUCED6 typesExperimental system interlock test…Tested before each experimental campaign…Hot cell containment integrity…Verified before hot cell operations…Reactivity control system…Executed as part of first criticality…Fusion device diagnostic and…Completed ahead of first plasma…Configuration change record for…Raised whenever an experimental…Operating authorisation recordIssued before first criticality, first…DOSSIERIndexed persubsystem and tagExport readyEach record lands in the same structure, so the dossier assembles itself.

    Experimental system interlock test record

    That an interlock protecting a beamline, irradiation position or experimental insert operates correctly before that experiment is authorised to run.

    Tested before each experimental campaign or configuration change.

    Hot cell containment integrity record

    That a hot cell's containment boundary, ventilation and manipulator seals meet their required leak-tightness and negative pressure before active work begins inside.

    Verified before hot cell operations commence.

    Reactivity control system functional test record

    That control rod or reactivity control mechanisms respond correctly and within required timing ahead of first criticality.

    Executed as part of first criticality readiness testing.

    Fusion device diagnostic and interlock commissioning record

    That plasma-facing component diagnostics and machine protection interlocks respond correctly before energising toward first plasma.

    Completed ahead of first plasma readiness review.

    Configuration change record for experimental facilities

    That a change to an experimental setup, beamline configuration or irradiation rig has been reviewed against the facility's safety case before use.

    Raised whenever an experimental configuration changes.

    Operating authorisation record

    That the accumulated interlock, containment and reactivity or plasma control evidence supports the facility's authorisation to operate at a given configuration.

    Issued before first criticality, first plasma, or after any significant configuration change.

    How it runs

    From bespoke design to operating authorisation.

    Research and fusion programmes reward a register scaled to the facility, not the organisation, because the regulator's evidence expectations do not shrink just because the project team is small.

    1. 01

      Model the facility's own hierarchy

      Reactor core, hot cell or fusion device systems modelled against the facility's actual design, not a generic template.

    2. 02

      Classify proportionately

      Safety classification applied by actual risk, giving full rigour to safety functions and lighter but traceable QA elsewhere.

    3. 03

      Test to design safety functions

      Shutdown, containment or quench protection systems functionally tested and dispositioned before first operation.

    4. 04

      Gate authorisation on complete evidence

      Operating authorisation reported from the full functional test, survey and classification record for the facility.

    FAQ

    Questions about Research and fusion facilities scopes.

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