Authorised Indian Distributor
Saxsons Group
New Delhi, India · Since 1997
High-Volume Air SamplerTotal-Filtration Iodine Air Configuration — Paper Filter + Dual Charcoal Cartridge
High-volume air sampler for radioactive aerosol and radioiodine sampling. Total-Filtration Iodine Air (TFIA) configuration draws sampled air through a 4-inch paper filter for particulates and then through two back-to-back 2-1/2-inch activated charcoal cartridges for I-131 / I-125 capture. The dual-cartridge arrangement gives a built-in collection-efficiency cross-check. Universal AC motor, vacuum-gauge flow monitoring, cast-aluminium filter holder. ANSI N13.1 / ISO 2889 stack-monitoring fit; ANSI N42.18 hot-lab fit; IAEA Safety Reports radioiodine air-sampling fit.
Key Features
- Total-Filtration Iodine Air (TFIA) configuration — particulates and radioiodines captured in series on a single sampler pass
- 4-inch (~100 mm) paper-filter stage for radioactive particulate aerosols upstream of the charcoal cartridges
- Dual back-to-back 2-1/2-inch activated charcoal cartridges (front + back) — front captures > 99 % of radioiodines; back catches anything that breaks through; cross-check confirms cartridge collection efficiency
- Universal AC motor delivers high-volume draw against the loaded-filter pressure drop
- Front-mounted vacuum gauge for live flow monitoring; flow drop indicates filter loading and signals changeout
All Features
- Total-Filtration Iodine Air (TFIA) configuration — particulates and radioiodines captured in series on a single sampler pass
- 4-inch (~100 mm) paper-filter stage for radioactive particulate aerosols upstream of the charcoal cartridges
- Dual back-to-back 2-1/2-inch activated charcoal cartridges (front + back) — front captures > 99 % of radioiodines; back catches anything that breaks through; cross-check confirms cartridge collection efficiency
- Universal AC motor delivers high-volume draw against the loaded-filter pressure drop
- Front-mounted vacuum gauge for live flow monitoring; flow drop indicates filter loading and signals changeout
- Cast-aluminium filter holder and motor housing — rugged for continuous indoor use, decontaminable wipe-down surfaces
- Carry handle and compact footprint — single-operator transport between sample stations
- Dual 115 V / 230 V variants for India + global deployment; standard IEC mains lead
- Operates standalone for short-duration grab samples OR with a timer for shift-long / 24-hour integrated samples
- Filter and cartridge media are radiation-counter compatible — collected sample goes straight to the gamma counter or proportional counter for assay
- Standard accessories: rotameter calibration kit, spare filter media + charcoal cartridges, sample-presentation jigs
- AERB cyclotron-facility radiation-protection fit; ANSI N13.1 / ISO 2889 stack-monitoring fit; ANSI N42.18 hot-lab fit
- Documentation: datasheet, calibration certificate, operator manual, AERB compliance paperwork
Technical Specifications
| Configuration | Total-Filtration Iodine Air (TFIA) — paper filter + dual back-to-back charcoal cartridges |
| Paper filter stage | 4-inch (~100 mm) diameter paper filter for particulate aerosols |
| Charcoal stage | Two 2-1/2-inch (~63 mm) diameter activated charcoal cartridges in series |
| Collection-efficiency cross-check | Front-cartridge activity ratio to back-cartridge activity confirms > 99 % cartridge efficiency per run |
| Motor | Universal AC motor; high-volume draw against loaded-filter pressure drop |
| Flow monitoring | Front-mounted vacuum gauge; flow drop indicates filter loading |
| Filter holder | Cast aluminium; decontaminable wipe-down surfaces; rugged for continuous indoor use |
| Electrical supply | 115 V / 230 V AC, 50 / 60 Hz variants; standard IEC mains lead |
| Operating mode | Manual standalone OR timer-controlled for shift-long / 24-hour integrated samples |
| Sample compatibility | Filter + cartridge media compatible with gamma counter, proportional counter and HPGe assay |
| Compliance framework | ANSI N13.1 / ISO 2889 stack monitoring; ANSI N42.18 air-sampling instrumentation; AERB cyclotron-facility air-monitoring expectations |
| Standard accessories | Rotameter calibration kit, spare filter media + charcoal cartridges, sample-presentation jigs |
Applications
High-volume air sampling — the assay-quality sample that verifies every inline monitor
Cyclotron stack effluent grab samples
Periodic high-volume grab samples on the cyclotron exhaust stack to verify continuous stack-monitor (GD-53-based PET-01-class instrument) readings. The air sampler collects an integrated filter + cartridge sample that goes to laboratory gamma assay; the cross-check anchors the inline stack monitor against a separate assay chain.
I-131 therapy room air monitoring
Continuous air sampling in I-131 therapy room and patient discharge bathroom. The charcoal cartridge captures volatile I-131; periodic cartridge counting tracks airborne radioiodine concentration against the AERB action threshold.
Hot lab air sampling — high-activity operations
Per-shift integrated air sampling during high-activity radiopharmacy operations (Lu-177 elution, F-18 target offload, Tc-99m generator change). Paper filter captures airborne particulates; cartridge captures any volatile radioiodines.
Contamination-incident response
Post-incident air sampling after a spill, broken vial or unsealed-source event. High-volume draw collects an assay-quality sample quickly; the dual-cartridge cross-check rules out false negatives from low cartridge efficiency.
HEPA filter integrity testing
Up- and down-stream sampling across HEPA filter banks in cyclotron and hot-lab exhaust. Filter-collected particulate activity quantifies HEPA bypass and ageing performance.
Environmental + perimeter monitoring
Site-boundary air sampling for AERB / state radiation-safety annual reports. Integrated 24-hour samples on the perimeter capture both routine release fingerprint and any incidental airborne activity.
Why High-Volume Air Sampler?
A single charcoal cartridge claims > 99 % radioiodine capture — but if the cartridge is exhausted or channelled, that claim fails silently. Two cartridges in series turn the claim into a measurement: front-cartridge activity ÷ (front + back) gives the per-run collection efficiency. The cross-check is on every sample, not on the calibration certificate alone.
Radioactive aerosols (particulates) and radioiodines (volatile gas / vapour) behave differently and need different collection media. The TFIA configuration puts both in series on a single sampler pass — one site visit, one operator action, two contaminant classes captured separately and assayed separately downstream.
AERB cyclotron-facility inspection and ANSI / ISO stack-monitoring frameworks both expect a high-volume grab-sample capability separate from the inline continuous monitor. The air sampler + assay chain is the standard answer; the cross-check between inline and grab anchors the release record.
Catalogs & Resources
ANSI / ISO / IAEA references that anchor the high-volume air-sampling workflow. Contact Saxsons for India pricing, install scheduling and AERB compliance paperwork.
ANSI N13.1 — Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities
US national standard for stack effluent sampling — defines grab-sample and continuous-monitor expectations and the role of paper-filter + charcoal-cartridge configurations.
ISO 2889 — General principles for sampling airborne radioactive materials
International standard defining stack and duct air-sampling design including isokinetic sampling requirements and collection-efficiency cross-check.
IAEA Safety Reports Series 38 — Applying Radiation Safety Standards in Nuclear Medicine
IAEA framework for nuclear-medicine radiation protection including airborne radioiodine monitoring expectations for I-131 therapy and hot-lab work.
ANSI N42.18 — Specification and Performance of On-Site Instrumentation for Continuously Monitoring Radioactivity in Effluents
US national standard for on-site effluent monitoring instrumentation; frames the role of high-volume grab samplers alongside continuous monitors.
High-Volume Air Sampler
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FAQ
High-volume air sampler — questions we hear from Indian cyclotron + I-131 therapy teams
What airborne contamination the sampler captures that fixed effluent monitors miss, why the total-filtration iodine configuration matters for I-131 work, routine vs episodic deployment, and the ANSI / IAEA / AERB framework.
Q.What contamination does a high-volume air sampler capture that fixed effluent monitors miss?
A stack effluent monitor reads gaseous release at the building-exhaust point — good for radioactive gas that goes up the stack. A high-volume air sampler pulls a large volume of workroom air through a paper filter (particulates) plus dual charcoal cartridges (iodine and other reactive species) so airborne particulate and iodine contamination inside the workroom is collected on the filters and quantified. That is the missing measurement between "no visible spill" and "no airborne contamination".
Q.Why the total-filtration iodine configuration specifically?
Iodine (I-131 in therapy dispensing, I-125 in seed handling) is chemically reactive and does not stay stuck to particulates — it partitions into the vapour phase and passes straight through a paper-only filter. The dual charcoal cartridge configuration captures the iodine chemically bound to activated charcoal — the total-filtration iodine configuration is what makes the sampler a defensible I-131 airborne-monitoring instrument rather than a symbolic one.
Q.When should the department deploy the sampler routinely vs episodically?
Routine daily / weekly runs in high-volume I-131 therapy programmes, cyclotron radiopharmacies with volatile-species chemistry, and research centres running unusual isotope work. Episodic runs post-spill (verifies airborne contamination has cleared before releasing the room back to routine use) and pre-audit (documented recent airborne-sampling record for AERB inspection). Sampler filters are read on the department's gamma spectrometer or well counter after collection.
Q.What framework does the sampler sit inside?
ANSI N42.18 (calibration and use of airborne radionuclide detection systems), IAEA Safety Reports Series (airborne monitoring for radioisotope facilities), ISO 21909 (personal + workplace air-sampling protocols). AERB Safety Code + Regulatory Requirements for Medical Cyclotron Facility both expect an airborne-monitoring capability for facilities handling volatile isotopes.
Q.How is the air sampler supplied and supported in India?
Distributed across India by Saxsons Group. Supply covers the sampler, paper + charcoal cartridge inventory for routine operation, commissioning against the facility protocol, calibration certificate and India install scheduling.
High-Volume Air Sampler supplier in India — Saxsons Group
Saxsons Group has supplied cyclotron equipment to over 1,000 Indian hospitals since 1988. Every consignment of High-Volume Air Sampler ships with cold-chain logistics, AERB import documentation, CDSCO registration references and a Certificate of Analysis delivered before dispatch — the paperwork your radiation-safety and procurement teams need, pre-assembled.
- Nationwide delivery footprint — every metro and tier-2 city in India, scheduled to your treatment / procedure calendar.
- AERB & CDSCO documentation — import licence, radiation-safety paperwork and RSO briefing pre-assembled for the audit file.
- 40+ years in Indian oncology — long-standing supply relationships with AIIMS, Tata Memorial, and hundreds of tertiary-care centres.
- Single point of accountability — one purchase order, one delivery contact, one after-sales team across the whole product family.
Also supplied by Saxsons Group across India
The assay-quality air sample that verifies the inline monitor
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