The gamma sterilization process uses Cobalt 60 radiation to kill
microorganisms on a variety of different products. Processing with
gamma yields quick turnaround time, easily penetrating packaging
and product, and is ideal for many types of materials.
How does gamma irradiation work?
High-energy photons are emitted from an isotope source (Cobalt 60)
producing ionization (electron disruptions) throughout a product.
In living cells, these disruptions result in damage to the DNA and
other cellular structures. These photon-induced changes at the
molecular level cause the death of the organism or render the
organism incapable of reproduction. The gamma process does not
create residuals or impart radioactivity in processed products.
What is gamma irradiation used for?
The gamma process can effectively sterilize a wide variety of
products composed of different materials, with varying densities,
configurations and orientations.
Gamma radiation is ideal for:
1 Sterilization of single-use medical supplies such as syringes,
implants, catheters, IV sets, surgical gloves, gauze and more
2. Elimination of organisms from pharmaceuticals such as ointments
3. Sterilization of tissue/biological based products
4. Microbial reduction on consumer products
5. For a complete list of products commonly treated with gamma
radiation, please see Technical Tip # 4
What is a typical gamma processing cycle?
The product arrives on a truck and is unloaded at the processing
The product is received by lot and product code that is entered
into the STERIS Isomedix Operating Data Management System (ODMS)
which provides for run generation, scheduling, processing,
certification and release of product for shipment
The product is loaded into the carrier/tote per established
configurations, dosimeters are placed, and the product is exposed
to the radiation field (Cobalt 60 source rack)
Dosimeters are analyzed after irradiation of the product is
complete, to confirm that the required dose has been delivered
Our factory is certified by CE, ISO11137ISO13485, EN552. It adopts
SQ(F)-636 model gamma radioactive device. The designed Co-60
radioactive source loading capacity is 7.4x1016Bq( 2 million
curie). The first period loading radioactive source is 1.48x1016Bq
(0.4million curie ). Our device has advantages like advanced
technology, high utilization ratio of radioactive energy, good
evenness of absorbing dosage, safe and reliable, barcode
distinguishing and monitoring system.
The device is divided into general control room, radiation room,
operation room, dosage room, equipment room and other auxiliary
equipment. It adopts Germany Siemens computer monitor and CKD
air-operated system. Advanced equipment, computer monitor system,
auto radioactive product conveying system, goods storing
surroundings are the forceful guarantee of radioactive sterilizing
system for you.
We can make bioburden test, Vdmax study, Dosage setting, gamma
irradiation, sterility test.
Please contact us for more information.&