Development of VUV wavelength shifter for the use with a visible light photodetector in noble gas filled detectors
| Autor: | A. A. Burenkov, V. A. Belov, S. A. Zav'yalov, I.S. Alexandrov, Oleg V. Borshchev, Y.N. Luponosov, M. Yu. Yablokov, M. Danilov, Sergei A. Ponomarenko, A. G. Kovalenko, V.N. Stekhanov, A.V. Akindinov, D.Yu. Akimov, Nikolay M. Surin |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Physics
Nuclear and High Energy Physics business.industry Photodetector chemistry.chemical_element Molar absorptivity Wavelength shifter Photodiode law.invention chemistry.chemical_compound Xenon Optics chemistry law Luminophore Optoelectronics Emission spectrum business Instrumentation Visible spectrum |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 695:403-406 |
| ISSN: | 0168-9002 |
| Popis: | Development study of a wavelength shifter (WLS) to convert a noble gas emission light from the VUV region to the visible range is presented. The shifter is developed for the use with an array of blue-sensitive multipixel avalanche Geiger photodiodes (MRS APD) to detect Xe 175 nm emission. It was found that a polycrystalline p-terphenyl having an absorption peak at 180 nm with a molar extinction coefficient e of 37500±5000 mol −1 ·l cm −1 is well suited for this. To satisfy a requirement of compatibility with an extra pure noble gas detection medium the p-terphenyl layer was coated with an ∼1 μm thick poly-para-xylylene protection film. A new WLS with maximum of emission spectrum at 390 nm and at 420 nm is developed on the basis of a nanostructured organosilicon luminophore. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect