Knowledge Hub · WGHS™ Waste Gas Handling System
A cyclotron synthesis run produces radioactive off-gas as a by-product. You can\'t release it live to the atmosphere — radiation safety rules don\'t allow it. WGHS is the engineered control: detect the gas, isolate the hot cell, hold the gas in storage tanks until its radioactivity has decayed, release it safely afterwards, record every step for audit. A facility utility, not a hot cell. The manufacturer product that closes the radiation-safety loop on the synthesis side of the cyclotron radiopharmacy.
The safety cycle
Step 1
Detect
Sensors identify radioactive gas in the synthesis line
Step 2
Isolate
The hot cell is automatically sealed off from the rest of the room
Step 3
Store
Gas is delivered to storage tanks for the decay buffer
Step 4
Release
After radioactivity has decayed, gas is released safely + recorded
Why this matters
Radiation safety, by design
A cyclotron synthesis run produces radioactive off-gases as a by-product. Releasing them directly into the air is not an option — radiation safety regulations don't allow it. WGHS is the engineered control that holds the gas until its radioactivity has decayed, then releases it safely. The simplest answer is to wait; WGHS makes the waiting controlled and recorded.
Based on: WGHS product page — function list
Read source ↗Automatic detection + isolation
WGHS doesn't wait for the operator. As soon as it detects radioactive gas in the synthesis line, it automatically isolates the host hot cell — limiting the release path and giving the radiopharmacy team a defined containment window for response.
Based on: WGHS product page — automatic isolation function
Read source ↗Audit trail for AERB
Per (the manufacturer spec), WGHS "checks and records data for each waste cycle." That recorded log is the input an AERB inspection asks for — when gas came in, when it decayed, when it was released. The radiopharmacy team doesn't have to manually assemble the paper trail; it's an automatic output of the safety cycle.
Based on: WGHS product page — per-cycle data recording
Read source ↗Facility-level utility
WGHS isn't a per-cell accessory — it's a facility utility. One WGHS unit covers the off-gas safety story for multiple synthesis cells. The capital decision is "do we have a WGHS at this site?" not "do we add one to every hot cell?"
Based on: WGHS product page — implied integration model
Read source ↗AERB licensing input
For an Indian cyclotron site, the AERB Regulatory Requirements for Medical Cyclotron Facility document sets out the licensing framework under the Atomic Energy (Radiation Protection) Rules 2004. Off-gas handling is one of the safety-engineering items the licensing path covers. WGHS is the engineered control that documentation cites.
Based on: AERB Regulatory Requirements & Guidelines for Medical Cyclotron Facility (2017)
Read source ↗Pairs with the SYNT synthesis cell
SYNT runs the synthesis chemistry — and generates the off-gas. WGHS captures, stores, decays and releases that off-gas safely. They're built to pair: SYNT is the source, WGHS is the sink, both supplied by the same the manufacturer with one teleassistance and one AERB import path through Saxsons.
Based on: SYNT + WGHS product pages
Read source ↗WGHS at a glance
4-step
Safety cycle
Detect → Isolate → Store → Release
Per-cycle
Audit log
Recorded automatically
Facility
Install level
One unit, many cells
SYNT pair
(the manufacturer )package
Source + sink, one supplier
Scope of this page
The WGHS public product page is marketing-light — a one-line definition plus a five-bullet function list. Storage-tank capacity, gas-handling rate, monitoring-instrumentation detail and install-base figures are not published on the open page; confirm via the brochure (gated via Tema, or available through Saxsons). The AERB regulatory framing on this page is the licensing path an Indian cyclotron site follows — WGHS provides engineered control that documentation cites, but the licence itself sits with the operator. We do not assert verbatim isotope-by-isotope handling claims (the manufacturer page does not name F-18 / C-11 / etc.).
WGHS product page and the SYNT synthesis hot cell that pairs with it.
Where next
Product page →
WGHS specs and brochure
Facility-utility positioning, function list, AERB import path.
Pair →
SYNT synthesis hot cell
The cell that generates the off-gas WGHS handles — sold as a the manufacturer pair.
For radiation safety →
Off-gas audit trail
What WGHS records, what the radiopharmacy still has to verify and document.