Experimental High Energy Physics Research Group

Local Research Projects


Scintillating Fiber Detectors

A local experimental research is to measure the attenuation length and photon yield of scintillating fibers using photomultiplier Hamamatsu R-1166. The fibers are based on polystyren doped with Butyl PBD and POPOP scintillating compounds. The scintillator emits photons at wavelength 420nm (blue light) which correspond to the peak quantum efficiency wavelength of the PMT R1166. All tests are performed using gamma source Cs137.

We have found from measurements that there are two sources of the attenuation: absorption by the core material (or self-absorption by fluor) and, absorption by the cladding-core interface imperfections.

We express our thanks to Prof. Muzaffer Atac for his invaluable help.

You can also have a look to the CAMAC DAQ Readout System


This is the Hamamatsu photomultiplier(Donated by Prof. Muzaffer Atac) that we are currently using

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