Authorised Indian Distributor
Saxsons Group
New Delhi, India · Since 1997
EVial Sealed Radioactive SourcesMulti-Isotope Sealed Reference Sources
Sealed radioactive reference sources in the EVial geometry for nuclear-medicine QA and calibration. Multiple isotopes and activity levels — supplied with NIST-traceable certificates, AERB sealed-source import documentation and decay-store-and-release support.
Key Features
- Sealed radioactive sources in the EVial geometry — standard polyethylene vial format used by dose calibrators and QA instruments
- Multiple isotopes available across the diagnostic and therapeutic energy range — select by clinical application
- Activity levels specified by use case — daily constancy, accuracy, linearity, geometry-factor calibration
- NIST-traceable activity certificate supplied with every source
- Activity contained in a sealed epoxy matrix — no settling, no contamination risk, long-term geometry stability
All Features
- Sealed radioactive sources in the EVial geometry — standard polyethylene vial format used by dose calibrators and QA instruments
- Multiple isotopes available across the diagnostic and therapeutic energy range — select by clinical application
- Activity levels specified by use case — daily constancy, accuracy, linearity, geometry-factor calibration
- NIST-traceable activity certificate supplied with every source
- Activity contained in a sealed epoxy matrix — no settling, no contamination risk, long-term geometry stability
- AERB sealed-source import licensed; documentation supplied for Indian nuclear-medicine facility registration
- Decay-store-and-release support — Saxsons handles end-of-life source return logistics via the source return service
- Compatible with all major dose calibrators and well counters using the standard EVial geometry
- Long-lived isotope options for multi-year reference service from a single source
- Certificate of conformance, activity, calibration date and traceability statement included
Technical Specifications
| Type | Sealed radioactive reference source (epoxy matrix in polyethylene EVial) |
| Isotopes available | Selectable — Co-57, Co-60, Cs-137, Ba-133, and others on request |
| Activity range | Specified per application (constancy, accuracy, linearity, geometry calibration) |
| Geometry | Standard EVial — same external form factor as a clinical radiopharmaceutical vial |
| Encapsulation | Sealed epoxy matrix — uniform radionuclide distribution; no liquid handling |
| Calibration accuracy | ±5% (direct comparison to NIST standards) |
| Traceability | NIST (USA National Institute of Standards and Technology) |
| Documentation | Activity certificate, calibration date, traceability statement, AERB compliance paperwork |
| AERB classification | Sealed source — import licence supplied; AERB registration support included |
| End-of-life | Source return service available — handled by Saxsons |
Applications
A sealed reference standard for the dose calibrator, well counter and QA workflows in your hot lab
Dose Calibrator Constancy
Daily reference measurement to verify dose calibrator response is stable from one day to the next. The EVial geometry matches the clinical vial so the constancy reading is directly comparable to a patient-dose measurement.
Accuracy Verification
Annual accuracy testing — measured activity must match the source certificate within ±10%. NIST traceability supports the result at AERB inspection and NABH accreditation.
Linearity Testing
Use of long-lived isotope sources for linearity testing where decay linearity is impractical. Verifies dose calibrator response across the clinical activity range.
Well Counter Calibration
EVial geometry is suitable for well-counter sample QA, providing a stable, sealed reference for energy-channel calibration and counting efficiency verification.
Multi-Site Standardisation
For multi-centre programmes, a common EVial reference source supplied across sites produces inter-laboratory consistency in dose calibrator readings.
New-Isotope Geometry Factor
When adding a new clinical isotope to the dispensing programme, an EVial reference source helps establish the dose calibrator geometry / calibration factor for the new radionuclide.
Why EVial Sealed Radioactive Sources?
The EVial epoxy matrix is permanently sealed inside the polyethylene vial. There is no liquid, no leakage path and no settling — the source maintains its calibrated geometry across years of routine handling.
AERB sealed-source import licensing and facility-registration documentation supplied with the source — the radiation-safety officer receives a complete dossier for the licensing file rather than having to assemble it.
When the source is no longer needed, the Saxsons source return service handles AERB-compliant return and disposal logistics. The radiation-safety officer does not need to find a separate disposal vendor at decay-out.
Catalogs & Resources
Manufacturer product page + Saxsons source return service. Contact Saxsons for activity quotes, AERB licensing and replacement scheduling.
EVial Sealed Sources — manufacturer product page
Manufacturer page with isotope availability, certificate examples and the gated brochure form.
Source return service — Saxsons logistics page
Saxsons own-brand AERB-compliant source return and disposal service for end-of-life sealed sources.
EVial Sealed Sources
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FAQ
EVial sealed reference sources — questions we hear from Indian nuclear-medicine teams
Why every dose-calibrator QC cycle needs a reference source, why the EVial geometry matters, which isotopes the range covers, and what NIST traceability + AERB registration ship with each source.
Q.What QC workflow does an EVial sealed source support?
EVial sealed sources are precision-calibrated reference activities in a standard vial geometry — the same geometry the dose calibrator expects for a patient dose. Every daily dose-calibrator constancy check, quarterly linearity check and annual accuracy verification (AAPM TG-181 framework) reads back from an EVial reference source of known activity. Without one, the calibrator is running on trust.
Q.Why the EVial geometry specifically?
A dose calibrator's response varies with source geometry — position inside the well, volume of solution, container wall thickness all shift the reading. Standard patient doses are dispensed in a standard vial geometry; calibrating against a reference source in the same geometry removes the geometry-correction step. EVial matches the routine dispensing-vial geometry so the calibration factor developed on the EVial is directly applicable to the patient dose.
Q.What isotopes and activity levels does the range cover?
Multi-isotope sealed reference set covering the workhorse dose-calibrator QC isotopes — Co-57 (Tc-99m energy region), Cs-137 (mid-energy), Co-60 (high-energy), Ba-133 (multi-peak cross-check). Activity levels sized for the routine reference-source range (typical department daily-constancy use, not therapy-scale).
Q.What NIST traceability and AERB documentation ships with each source?
Every EVial ships with a NIST-traceable activity certificate, calibration date, source form + geometry documentation and the AERB sealed-source import documentation the department needs for its dossier. Saxsons handles the sealed-source import registration and coordinates the end-of-life disposal-return chain (sealed sources cannot be discarded like unsealed radiopharmaceutical waste).
Q.How is the EVial sealed source supplied and licensed in India?
Distributed across India by Saxsons Group under sealed-source import licensing. Supply covers the source, NIST-traceable calibration certificate, AERB registration documentation, transport chain and end-of-life return-and-disposal support. Reference-source ordering coordinated against the department's QC cycle.
EVial Sealed Radioactive Sources supplier in India — Saxsons Group
Saxsons Group has supplied nuclear medicine equipment to over 1,000 Indian hospitals since 1988. Every consignment of EVial Sealed Radioactive Sources 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
Add a sealed reference source to your nuclear-medicine QA programme
Contact Saxsons Group for EVial sealed source quotes, isotope-specific selection, AERB import licensing documentation and end-of-life return logistics across India.