Found 271 results in 1 milliseconds.

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Thermal stimulation (TL)

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Configuration options Thermal stimulation (TL) Thermal stimulation Thermal stimulation up to 710 °C, allowing user-defined heating and cooling cycles for TL, preheating and elevated temperature OSL Interested? Get in touch! Contact now Ceramic heating element allows highly reliable and more consistent measurements. The heating element is cooled by continuous flow of nitrogen or compressed air. Thermoluminescence (TL), preheat (PH) including elevated temperature luminescence measurements (OSL, RL, etc.) as well as elevated temperature irradiation (at ionizing irradiation and “solar-light” position) are possible during any part of a heating/cooling cycle, which is almost freely programmable including non-linear heating/cooling functions. Heating rate: 0.1 - 20.0 C/s (@Tmax= up to 710 °C) Highly flexible step-wise programming of heating / cooling cycles within system parameters (i.e. temperature and heating/cooling rates) Software options for further temperature control (e.g. non-linear functions)

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Pulsed OSL (10 µs)

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Configuration options Pulsed OSL (10 µs) Pulsed OSL (10 µs) Maximum power, homogeneity and stability provided by the interchangeable OSL unit Interested? Get in touch! Contact now All lexsyg smart and lexsygresearch TL/OSL readers can be equipped with an interchangeable OSL unit containing up to three stimulation wavelengths. These are provided by high power stimulation LEDs or laser diodes. The integration of photo diodes provides the feedback for power control of each individual element, guaranteeing a stable stimulation source, independent of element aging. LED/laser diodes stimulation Available stimulation wavelengths: (LED/laser diodes) UV (365 nm), Violet (405 nm), Blue (458 nm), Green (525 nm), Yellow (590 nm), IR (850 nm), Red (620 nm) Modes of operation for OSL Continuous Wave OSL (CW-OSL) Linear Modulated OSL (LM-OSL) Pulsed OSL (POSL) Select up to three wavelengths per OSL unit: LED stimulations: Module# L0403 – Blue LED stimulation 458 ± 5 nm (max. 100 mW/cm² at sample position) Module# L0404 – IR LED stimulation 850 ± 20 nm (max. 300 mW/cm² at sample position) Module# L0405 – Green LED stimulation 525 ± 20 nm (max. 80 mW/cm² at sample position) Module# L0410 – VioletLED stimulation 405 ± 3 nm (max. 100 mW/cm² at sample position) Module# L0411 – UV LED stimulation 365 ± 3 nm (max. 100 mW/cm² at sample position); for bleaching Module# L0419 – Red LED stimulation (~620 nm) Laser diode stimulation: Rise/fall time: < 10 ns ON-Time: 50 ns to continuous wave Module# L0407 – Blue laser diode stimulation 445 ± 3 nm (max. 100 mW/cm² at sample position) Module# L0408 – IR laser diode stimulation 850 ± 3 nm (max. 300 mW/cm² at sample position) Module# L0409 – Violet laser diode stimulation 405 ± 3 nm (max. 100 mW/cm² at sample position) Module# L50064 – Green laser diode stimulation 523 ± 8 nm (max. 50 mW/cm² at sample position) Module# L50065 – Red laser diode stimulation 638 ± 5 nm (max. 75 mW/cm² at sample positio

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Filter wheel

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Configuration options Filter wheel Filter wheel including suitable filters Interested? Get in touch! Contact now Filter wheel including suitable filters, which are optimized for maximized luminescence light collection and maximum suppression of scattered light (OSL, PL) and thermal noise (TL), recommended as minimum configuration to perform optimized TL/OSL/RF analyses in dating and other applications. Optics designed for high-efficiency light collection for PMT luminescence measurements Programmable change of detection window (duration of filter change between 300 ms and maximum 3s) during measurement Filter choice is software restricted according the chosen stimulationwavelength, thus malfunction (over exposure) is prevented Malfunctions are software protected, including PMT damage protection during measurement Optimized filter-sets for all main quartz or feldspar mineral luminescence emissions and for other materials/applications are available Filter sets (interference, color-glass optical filters) optimized for largest transmission of individual wavelength bands and best blocking of stimulation light (OSL) and/or thermal noise (TL, blackbody radiation) A filter wheel has 6 position and each position up to 6.5 mm of stacked filter thickness. 15 measurement functions are included (more information are available on request)

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PMT detection unit

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Configuration options PMT detection unit PMT detection unit High-precision detection for groundbreaking analysis results Interested? Get in touch! Contact now Standard UV-VIS PMT unit (300 – 650 nm) Standard UV-VIS PMT unit (280 – 650 nm) standard detection unit for application in luminescence dating and dosimetry bi-alkaline cathode PMT (HAMAMATSU H7360-02) sensitivity range: 300-650 nm peak sensitivity: 420 nm ( 3.1 E5 counts s -1 pW -1 ) dark counts typ. <100 cts photon counter counting linearity (random pulses, 10% loss) 6.0 E6 cps UV-VIS optics Standard UV-VIS PMT unit (280 - 650 nm) Extended UV-VIS PMT unit (160 – 630 nm) for standard applications in luminescence dating and dosimetry detection unit with standard bi-alkaline cathode PMT (Electron Tubes 9235QB) sensitivity 160-630 nm peak sensitivity: 30% quantum efficiency @ 200 nm and 350 nm dark count typ. 300 cts photon counter counting linearity (random pulses, 10% loss) UV-VIS optics Red enhanced UV-VIS PMT unit (300 – 720 nm) Red enhanced UV-VIS PMT unit (300 – 720 nm) necessary/useful if standard UV-VIS PMT sensitivity in the yellow to red wavelength band is insufficient useful e.g. for quartz (flint)/calcite orange-red or feldspar red luminescence measurements thermoelectric/air cooled GaAsP photocathode PMT (HAMAMATSU) sensitivity: 300 – 720 nm peak-sensitivity: 40% quantum efficiency @ 580 nm cooling max. 35 °C below room temperature cooling time approx. 5 min typically 100 cps dark signal at 0°C photon counting system counting linearity (random pulses, 10% count loss) 1.5 E6 cps UV-VIS optics Red enhanced UV-VIS PMT unit (300 - 720 nm) VIS-NIR PMT unit (380 – 890 nm) VIS-NIR PMT unit (380 – 890 nm) required for RF dose determination employing the 865 nm potassium feldspar emission required for 880 nm IRPL detection useful/necessary for any other measurements where red and NIR sensitivity is needed thermoelectric/air cooled GaAs photocathode PMT (HAMAMATSU H7421-50) sensitivity: 380 – 890 nm, peak-sensitivity: 12% quantum efficiency @ 800 nm cooling max. 35 °C below room temperature cooling time approx. 5 min typically 60 cps dark signal at -10°C (125 cps at 0°C) photon counting system counting linearity (random pulses, 10% count loss) 1.5 E6 cps includes UV-NIR optics VIS-NIR PMT unit (380 -890 nm)

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Red stimulated quartz OSL

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Configuration options Red stimulated quartz OSL Red stimulated quartz OSL allows a separation of the fast OSL component in thermally optically stimulated (TM-OSL) mode Interested? Get in touch! Contact now Following Chruścińska et.al. (2018) and Palczewski & Chruścińska (2019) the stimulation of quartz at 620 nm allows a separation of the fast OSL component in thermally optically stimulated (TM-OSL) mode. Red OSL at 620 nm is now available for lexsyg TL/OSL reader . Chruścińska, A., Szramowski, A., Thermally modulated OSL related to the fast component of the OSL signal in quartz, Radiat. Meas. 120, (2018), 20-25. Palczewski P & Chruścińska A (2019) Different components of the quartz OSL signal resolved by the TM-OSL method. Radiation Measurements 121, 32-36.

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Additional sample carousel

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Optional accessories Additional sample carousel Additional sample carousel up to 50 sample positions Interested? Get in touch! Contact now Each lexsyg smart TL/OSL reader is delivered with two exchangeable sample carousels with 50 samples positions (automatic changer) for ∅=10 + 0,0/-0,2 mm (max. thickness 1 mm sample discs). Additional sample carousel can be purchased as well. Exchangeable sample carousel

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Air compressor

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Optional accessories Air compressor Air compressor Low noise and portable air compressor for all lexsyg devices Interested? Get in touch! Contact now Maximum pressure: 8 bars Low noise (33 dB) Weight (22 kg)

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LED head lamp

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Optional accessories LED head lamp LED head lamp Red head lamp for sample treatment in dark rooms or luminescence labs Interested? Get in touch! Contact now 660 nm ± 15 nm Two intensities No side bands

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Aliquot preparation kit

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Optional accessories Aliquot preparation kit Aliquot preparation kit for quick silicon stamping on hundreds of sample cups or discs Interested? Get in touch! Contact now Procuct-Sheet Our brand new Aliquot preparation kit includes a stamp and a template for quick silicon stamping on hundreds of sample cups or discs. Donwload Product-Sheet Manual_Aliquot_Preparation_Kit_03032015.pdf 619 KB

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Sample cups/discs

Skip breadcrumb navigation Breadcrumb Freiberg Instruments Products Luminescence Dating and Dosimetry lexsygsmart Optional accessories Sample cups/discs Sample cups/discs Excellent thermal conductivity provided by professionally manufactured sample cups made of stainless steel, aluminum or nickel Interested? Get in touch! Contact now Sample cups/discs are designed to provide excellent thermal conductivity. They are cleaned and vacuum sealed (20 pcs per/package) separately. Stainless steel VA 1.4301 most popular, for standard application maximum temperature: 710 °C Aluminum AlMg 3 low cost maximum temperature: 500 °C Nickel Ni 99.2 for experimental work low background measurements