Scintillation characteristics on anthracene-doped naphthalene crystal for 137Cs-γ ray source

✍ Scribed by N. Balamurugan; A. Arulchakkaravarthi; P. Ramasamy

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 341 KB
• Volume: 568
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2006.08.035

✦ Synopsis

In this paper, we report scintillation characterizations on anthracene-doped naphthalene (NA) crystal. Crystals of this scintillator have been grown using the Bridgman-growth process. The peak of NA crystal emission is at 425 nm. The luminescence intensity of the NA crystal is 3 times that of pure naphthalene crystal. Naphthalene when doped with anthracene has high light output and fast principal decay constant (o30 ns). For 662 keV g rays ( 137 Cs source), energy resolution of 18% (FWHM) has been recorded at room temperature for NA crystals coupled to a photomultiplier. The pulse height of NA is 10 times greater than the pure naphthalene crystal. The NA detector exhibited a good timing performance compared to trans-stilbene detector.