CsI(Tl) Scintillator Array

Scintillator CsI(Tl)’s maximum of the broad emission situated at 550nm which allows Si-photodiodes to be used to detect the emission. The use of a scintillator-photodiode pair makes it possible to diminish significantly the size of the detecting system (due to the use of photodiode instead of PMT), to do without high-voltage supply source, and to use detecting systems in magnetic fields. The high radiation resistance (up to 10 Gy) allows CsI(TI) to be used in nuclear, medium, radiation detection and high-energy physics etc. Special treatment ensures obtaining of CsI(TI) scintillators with a low afterglow (less than 0.1% after 5 ms) for the use in safety inspection and imaging.

 

Laser Optics and Components

Laser Optics are used in a wide range of laser instrumentation or laser applications, including beam steering or material processing. Laser Optics use specific substrates, coatings, or a combination of the two to provide superior performance at specific laser wavelengths or over a range of wavelengths. Many Laser Optics feature laser damage thresholds designed for pulsed or CW lasers. Using a Laser Optic that has a lower laser damage threshold than what the laser requires can lead to damaging the Optical Component.

Shalom EO is a leading supplier of crystals, optics, components products, a wide range of the products are offered, which includes: crystals and components for laser systems and applications, infrared lens, windows and optics for thermal imaging cameras and applications, scintillation crystals components for X-ray, nuclear ray detections, SAW crystals and wafers, Substrates and other optics products. The products are widely used in the laser systems and instruments manufacturing, thermal imaging cameras and applications, X-ray equipments, nuclear ray detecting instruments, medical and biological equipments, automation and precision instruments in field of industry, military, scientific research and aero-space.

Plastic scintillator performance parameters

The performance parameters of the plastic scintillator vary depending on the matrix, the scintillation substance, and the second solute, the difference in the wavelength and the difference in scores. Therefore, the varieties of plastic scintillators are various and the performance parameters vary greatly.
The emission spectrum of the plastic scintillator is consistent with the emission spectrum of the scintillator, and the emission spectrum of the scintillator
different. When a wave remover is used, the emission spectrum of the plastic scintillator is consistent with that of the wave shifter.
The light output of the plastic scintillator increases with the increase of the concentration of the scintillator substance, and reaches an extreme value when the mass concentration is 1% to 4%. As the concentration continues to increase, the light output decreases. Adding 0.01% to 0.02% of the mass of the agent can dramatically increase the light output.
Large quantities of heavy charged particles or electrons are radiated over a long period of time, causing the plastic scintillator to be damaged and the light output to be reduced.
The energy response of the line attenuation coefficient of the plastic scintillator is shown in the figure.

FROM:baidubaike

Optical Windows

A variety of  optical windows are offered in Hangzhou Shalom EO:  circular windows, rectangular windows, wedged windows and elliptical windows, with dimensions range from Diam. 0.8mm to 300mm. We are able to process the large volume productions, and also deal with the small quanity of prototypes. A wide range of  optical crystals and optical glass materials substrates are available.

SPECIFICATIONS

Specifications 
Materials BK7, B270, FS, BaF2, CaF2, MgF2,Quartz, YAG , Ge, Si, Sapphire, ZnSe, ZnS and other customized materials;
Spherical configurations circular windows, rectangular windows, wedged windows and elliptical windows
Size Tolerance +/-0.1mm
Thickness Tolerance +/-0.2mm or upon request
Surface quality(S/D) 40/20 or upon customer’s request to 10/5
Aperture 90% of central dimension
Flatness Lambda/4 @ 633nm or upon customer’s request to Lambda/10 @ 633nm

Note: The custom specifications are available upon customer’s request.

Infrared Optics >> Infrared Windows

IPL Filters and Waveguides-Filters

IPL is short for Intense Pulsed Light, IPL machines are used for a range of treatments as hair removal, skin rejuvenation, pigmentation removal, acne clearance and vascular therapy. Filters and waveguides are critical components in IPL machine, it blocks the harmful UV light sourcing from Xe lamps.

Hangzhou Shalom EO provides a variety of IPL filters and waveguides made from sapphire, fused silica and BK7, with various types of coating band. The available wavelength are: 430nm; 450nm; 480nm; 510nm; 530nm; 560nm; 580nm; 640nm; 690nm; 700nm; 750nm. Some standard types of the filtesr are in stocks at fast delivery, the customized filters are available upon  request

Pixellated Arrays-CdWO4 Arrays

CdWO4 arrays has wide applications, its extremely low afterglow property is of great importance of fast inspection, especially in the cargo container of customs, while in the X-CT equipment due to its relatively high light output, high density and strong prevention of X-ray property, also in the high energy physics because of its strong anti-radiation.

Modules or types
Single element size: customized
Linear array: 8, 16, 32, 64…elements
2-Dimensional array: 6×10, 12×18, 24×36…elements
Light output: 12,000-15,000 Photons/Mev
Afterglow: 0.1%(max) after 3ms
Reflector: polymer with TiO2(excellent reflection to ensure minimized cross talk)
Application Notes
· Security inspection
· X-ray CT
· High energy physics
· Nuclear medicine

Lithium Aluminate (LiAlO2) Crystals and Substrates

Lithium Aluminate or LiAlO2 is a potential substrate for III-V nitride thin films due to its excellent lattice mismatch to GaN (<0.2% at <100> ), chemical stability at high temperature and cost effective. The lattice parameter of Lithium Dioxogallate (LiGaO2) and Lithium Aluminium Oxide (γ) (LiAlO2) crystal can match with the Gallium Nitride film very well. The mismatch coefficients are 0.2% and 1.4% only for LiGaO2 and LiAlO2, much smaller than that of the common used substrates such as <0001> sapphire (14%), <100> MgO (3%), <0001> SiC (3.5%). The Gallium Nitride film is a very important material for blue, violet, UV and white LED. A substrate material that matches the film to be grown well is very important to get a nice GaN epitaxial film.

Specifications 
Orientations <100>, <110>, <111>
Orientation Tolerance ±0.5°
Standard Size (mm) Ф30,Ф20, 20×20, 15×15,10×10,10×5,10x3mm
Thickness 0.35 mm, 0.5 mm and 1.0 mm
Dimensional Tolerance ±0.1mm
Grown Boule 55 mm dia. x 50-80 mm length
Surface Quality 20/10 S/D
Flatness 1/4 Lambda @633nm for thickness less than 2mm
Parallelism 30 arc sec.
Perpendicularity 5 arc minutes
Wavefront Distortion <1/4 Lambda @ 633nm
Micro Roughness (5μmx5μm) Ra:<1Å

Plastic scintillator performance parameters

Plastic scintillator performance parameters with the substrate, scintillating material and the second solute – shift the difference between the different and the difference. Therefore, the variety of plastic scintillators is varied, the performance parameters vary widely.

The emission spectrum of a plastic scintillator is consistent with the emission spectrum of a scintillating substance, whereas the emission spectrum of a scintillator

different. The emission spectrum of the plastic scintillator coincides with that of the wave-shifting agent when the wave-shifting agent is applied.

The light output of plastic scintillator increases with the increase of scintillation material concentration, reaching the extreme value when mass concentration is 1% ~ 4%. Continue to increase the concentration, but the light output decreases. The addition of mass concentration of 0.01% ~ 0.02% of the wave-shift agent can make a sharp increase in light output.

For a long time heavy fluences heavy charged particles or electron radiation, so that the plastic scintillator damage and thus reduce the light output.

Hangzhou Shalom Electro-optics Technology Co., Ltd. is located in the high-tech area of the beautiful touring city Hangzhou, about 300Km from Shanghai city. Besides its beautifulness and long history, Hangzhou is well known for its high-tech industry of IT, optical fiber communications and electro-optics.

Achromatic Waveplates-Laser Component

Achromatic waveplate or retarders is made from two different substrate materials such as crystal quartz and magnesium fluoride. For the single material waveplates the working wavelength is very limited because of the dispersion of the material. While Achromatic Waveplate use two different kinds of material, the dispersions of the birefringence are also different. Hence such waveplate is not sensitive to the wavelength change.

Hangzhou Shalom EO offers the custom achromatic waveplates or retarders upon customer’s request, and the stocked modules are available in fast delivery and low cost.

Optical Lenses

Hangzhou Shalom EO offers a variety of optical lenses: plano-concave, plano-convex, convex- concave, double convex, double concave, cylindrical lenses, rod lenses and ball lenses. Dimensions range from 0.8mm to 300mm. We are able to process the large volume productions, and also deal with the small quantity for your prototypes. A wide range of optical crystals and optical glass materials substrates are available.