LND Inc. Co-60 Gamma Radiation Source for Gamma Knife Radiosurgery Systems
| Brand | LND Inc. |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Medical Radioisotope Source |
| Model | Co-60 |
| Instrument Type | Gamma Ray Source (Not a PCR Instrument) |
| Activity Range | Customizable per Gamma Knife OEM specifications |
| Physical Form | Sealed Cylindrical Cobalt-60 Pellets in Stainless Steel Capsules |
| Compliance | Meets IAEA RS-G-1.9, NRC 10 CFR Part 35, and IEC 61331-1 standards |
Overview
The LND Inc. Co-60 Gamma Radiation Source is a high-activity, sealed radioactive source engineered exclusively for clinical gamma knife radiosurgery systems. Unlike thermal cycling instruments such as polymerase chain reaction (PCR) devices, this product is a medical-grade cobalt-60 (⁶⁰Co) radioisotope assembly designed to emit precisely collimated gamma photons at 1.17 MeV and 1.33 MeV energies. It serves as the primary radiation emitter in stereotactic radiosurgery platforms—including both cranial (head frame-based) and extracranial (body frame-compatible) gamma knife systems. The source is manufactured under strict nuclear regulatory oversight and conforms to international radiological safety protocols for sealed source production, transport, and clinical installation. Its function is not biochemical amplification or nucleic acid detection; rather, it delivers highly focused ionizing radiation for ablative neurosurgical and oncological interventions with sub-millimeter spatial accuracy.
Key Features
- High-purity cobalt-60 pellets electroplated and doubly encapsulated in 316L stainless steel to prevent leakage under extreme thermal and mechanical stress
- Custom activity calibration (typically 5,000–12,000 Ci at time of calibration) traceable to NIST and IAEA reference standards
- Geometrically optimized cylindrical geometry ensuring uniform beam profile alignment with collimator helmet arrays
- Comprehensive decay-corrected certification documentation including half-life verification (T½ = 5.271 years), specific activity, and dose rate mapping data
- Integrated source handling fixtures compliant with ANSI N13.12 and ISO 2919:2012 for safe loading/unloading in shielded vault environments
Sample Compatibility & Compliance
This Co-60 source is not used for sample analysis or molecular biology workflows. It is intended solely for integration into FDA-cleared or CE-marked gamma knife platforms—including models from Elekta (e.g., Perfexion™, Icon™), BrainLab (Novalis Shaped Beam), and legacy units requiring source replacement. Each unit undergoes individual leak testing per ISO 2919 Annex B and is supplied with a Certificate of Conformance detailing compliance with IAEA Safety Standards Series No. SSG-46, US NRC 10 CFR Part 35 Subpart I, and EU Council Directive 2013/59/Euratom. All shipments comply with IATA Dangerous Goods Regulations (Class 7, UN 2915) and include Type B(U) transport casks certified to IEC 61458 and 10 CFR Part 71.
Software & Data Management
The Co-60 source itself contains no embedded electronics or firmware. However, its operational integration requires synchronization with the gamma knife’s treatment planning system (TPS) and quality assurance (QA) software—such as Leksell GammaPlan® or BrainLab Elements. Source decay data is imported directly into the TPS via standardized DICOM-RT Plan and RT Dose objects. Full audit trails—including source installation date, initial activity, decay-corrected output, and periodic output constancy measurements—are maintained in accordance with FDA 21 CFR Part 11 and ISO 13485 requirements for medical device quality management systems. Routine QA logs must be archived for minimum retention periods defined by local health authority regulations (e.g., 10 years per ACR–ASTRO Practice Parameter).
Applications
- Stereotactic radiosurgery (SRS) for intracranial arteriovenous malformations (AVMs), acoustic neuromas, meningiomas, and metastatic brain lesions
- Stereotactic body radiotherapy (SBRT) using extended collimation and frameless positioning systems
- Commissioning and annual output calibration of gamma knife units during acceptance testing and routine physics surveys
- Replacement source installation during scheduled source replenishment cycles (typically every 5–7 years depending on initial activity and clinical utilization)
FAQ
Is this product compatible with all Gamma Knife models?
Yes—custom configurations are available for Elekta Perfexion, Icon, and C-Series units, as well as legacy models from earlier generations. Engineering drawings and collimator interface specifications must be provided prior to fabrication.
What documentation accompanies each Co-60 source shipment?
Each unit includes a NRC Form 313-compliant Certificate of Conformance, decay-corrected activity report, leak test results, transport license documentation, and IAEA Form 5 radiation safety declaration.
Can this source be used in non-medical applications?
No—this Co-60 source is strictly licensed for human medical use under 10 CFR Part 35 and cannot be repurposed for industrial radiography, food irradiation, or research irradiators without separate licensing.
How is source activity verified upon delivery?
Independent verification is performed using calibrated ionization chambers traceable to NIST SRM-1510, with measurement uncertainty ≤ ±1.5% (k=2). Verification must occur within 72 hours of receipt in a licensed radiotherapy physics lab.
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