THE MOST EFFICIENT GAMMA HARDENED LED LIGHTS
DEVELOPED AND MANUFACTURED BY:
TESTED BY:
Luminos Nuclear Gamma Hardened LED luminaires installed in
Spent Fuel Dry Storage building in NEK, Slovenia
Standard Gamma Products
GAMMA radiation hardened LED lights " LUMINOS Nuclear " are made of materials which can survive gamma radiation of up to 150 KGy. Luminos Nuclear products are especially designed to replace inefficient lighting in nuclear power plants. All luminaire components including the LED driver were tested at ENEA in Casaccia Research Center in Italy. All other testing was done in SIQ Ljubljana, Slovenia.
Stainless Steel High Bay/Gamma is a small and compact LED Reflector. Made entirely from stainless steel, it is suitable for montage in the containment building. The LED panels are of our own design with efficiency of 210 - 220 lm/W.
By using high quality components throughout the whole light, we achieve overall efficiency of over 160 lm/W.
The LED Driver is also of our own design and is the key component of our Radiation Resistant LED Lights. It is encapsulated in a stainless steel box with neutron absorbing and shielding material in all of our models.
Linear Gamma LED luminaires are the most efficient substitute to fluorescent lamps. Power consumption is 2 - 3x less than standard fluorescent bulbs. When designing this luminaire, we decided to use the best possible materials and components. With advanced LED chips (< 210 lm/W), aluminum housing, tempered glass and other high quality components, this LED luminaire is designed to last. After accounting for losses in glass, LED driver and optics, the overall efficiency of this luminaire is around 160 lm/W.
In addition to standard dimensions, we can also design this luminaire to customer specific dimensions and desires. Distribution angle of illumination can be 15°, 30°, 45°, 60°, 90°, 120° or asimmetrical and power between 10 - 70W. Montage systems can also be adjusted
LED Flat Line/Gamma luminaires are used to illuminate various indoor spaces such as technical premises, production premises, offices, warehouses or any area, where they are exposed to gamma radiation. We recommend that this model is mounted 3 - 6m high, with flux distribution angle 120°, and up to 12m high with flux distribution angle 60°.
The luminaires have outstanding energy efficiency due to the use of the most advanced LED light sources, high efficiency LED driver and carefully selected other components. They are also distinguished by their 100% resistance to burns of a single LED light source, a large redundancy of power modules and a robust aluminium profile dyed with high-quality polyurethane varnishes. All other electronic characteristics are similar to the model STR.
The Gamma Hardened Stadium LED Reflector is especially suitable for high mounting in areas such as SFDS (spent fuel dry storage area), containment building in nuclear power plants and on high towers around the nuclear power plant. This model can be an indoor and an outdoor version. For the outdoor version we recommend the IP66 option.
This model has LED diodes with efficiency of 210 lm/W. After all the losses inside the LED luminaire and the LED driver, we get a luminous flux of 160 lm/W out of the LED reflector.
For OEM montage system, customers need to provide us with schematics. The original montage is a hanging type on two points with prepared 9 mm holes.
STR Gamma Hardened LED reflector is in the category of most energy-efficient LED reflectors on the market. It is used to illuminate large outdoor areas. It is specially developed for use in a low, medium and high radiation areas, like WMB (Waste Management Buildings), waste storage buildings.
STR Gamma reflector can be mounted from 8 m up to 30 m high. In addition to exceptional energy efficiency due to the use of the most advanced LED light sources and the best possible nanotechnology optics with reflection of 98 %,
this LED luminaire also features 100% resistance to burns of a single LED light source, a large redundancy of LED driver and quality aluminium housing with powder painting. The lifetime is more than 20 years and warranty time is 5 - 10 years.
Our radiation resistant emergency LED lighting solution is first of its kind. Luminos Nuclear LED Lighting / Emergency Controlling Box (LL - ECB) with LiFePO4 Battery Pack for radiation resistant emergency lighting is a neccessary product for any kind of environment with GAMMA radiation and ensures operation of LED lights in case of any kind of loss of power.
The LED Lighting / Emergency Controlling Box and the LiFePO4 battery pack are coupled with any Luminos Nuclear LED lights, which are tested and certified up to a GAMMA dose of 150 kGy. The same light works both as a standard LED light and, in case of loss of power, begins working as an emergency light. While all of our lights can be installed in places with GAMMA radiation, both the Controlling Box and the Battery Pack must be installed in places with no radiation present.
Testing Report
Complete LED luminaire tests on the effects of gamma radiation were conducted at Casaccia Research Center, ENEA in Italy.
The test lasted for about 47 hours. During that time, our LED luminaires were receiving a gamma radiation at a dose rate of 3.3kGy/h. After the test was finished, luminaires received a total dose of 156kGy and were still in working condition.
Test Reports on GAMMA radiation
GAMMA Radiation testing in Casaccia Research Center, ENEA
LED luminaires ready for testing. Placed 20cm from Co-60 source rack
Dewesoft measuring system for electric parameters measurements, during LED driver testing inside Cobalt-60 irradiation facility
The irradiation test started on 06/05/2024 at 11:00 and ended on 09/05/2024 at 09:30, was performed in multiple step mode for a total irradiation time of 47h 40’ 56’’ with and average dose rate of 3.31kGy/h. At the end of the irradiation test, the LED luminaries were still in working condition.
Three different Luminos Nuclear LED luminaires were positioned 20cm away from the Co-60 source rack. The Calliope Facility consists of a pool-type gamma irradiation plant (Co-60 source, mean energy of 1.25 MeV) with a maximum licensed activity of 3.7 10^15 Bq (Cat. A Clearance), of a dosimetric laboratory and of a laboratory for the characterization and treatment of the samples before and/or after irradiation.
About
Company Nanocut d.o.o. was established in 2014.
In the first two years we were developing, manufacturing and selling many different regular LED light models. These products with some installation pictures can also be seen on our Nanocut company website www.luminos.si. With our knowledge of switch mode power supplies (SMPS), we started developing our own LED driver, carefully choosing standard components. In 2017 we saw a need for LED lighting solutions in radioactive environments, so we decided to pursue research in this area. We were quickly able to make a complete LED luminaire that survived a significant amount of irradiation. Since then we have constantly been perfecting our products.
Our most recent test was conducted at ENEA in Casaccia Research Center in Italy, where we tested our luminaires to total gamma doses of up to 156kGy. Our luminaires were placed very close to the radiation source, where they were exposed to a gamma dose rate of cca 3.3kGy/h. After approximately 47 hours of active irradiation we concluded our tests with our luminaires still in working condition.
Engineers in our company have more than 40 years of experience in SMPS and more than 25 years of experience in mechanical engineering construction. All this knowledge and experience was needed, because the gamma radiation hardened LED luminaire is not a simple product. We are using our own technology called "DERCCAT". Products developed with this technology are carefully designed using extensive knowledge of seven physical properties. Diffusion, Emission, Reflection, Conduction, Convection, Absorption and Transparency. All these physical properties have effect on heating, efficiency and LED luminaire lifetime.
The same LED driver, which can survive high gamma doses, is used in all of our gamma resistant LED lighting products. We can also develop gamma radiation hardened LED luminaires with custom dimensions. The LED driver technology belongs to our company. All other mechanical parts are also developed and manufactured in our company.
Projects
Dry storage facility in Krško built by Holtec.
Three pictures show LED reflectors STR ULTRA on 30m high towers. All together 40 LED reflectors were installed on 6 towers. Complete connecting power 5.4 KW, covers an area of 20000 m2. Avarage luminance level on the ground is 28 lx.
Many of our other LED lamp installations can also be seen on our main company website www.luminos.si
Contact
Inquiries
For any inquiries, questions or commendations, please write to info@luminos-nuclear.com,
call +386 (0)40 836 214 or fill out the following form.
Head Office
Nanocut co. ltd.
Ulica prvoborcev 1a
1430 Hrastnik
Slovenia, Europe
Tel1: +386 (0)40 836 214
Tel2: +386 (0)40 743 882