نتایج جستجو برای: nai tl

تعداد نتایج: 9441  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده علوم پایه 1391

پدیده رادیولومینسانس ناشی از اندرکنش تابشهای یونیزه کننده با مواد فسفری است که آگاهی از اثرات آن با کشف اشعه ایکس در سال 1895 توسط ویلهلم کنراد رونتگن آغاز شد و تاکنون پژوهش های گسترده ای در این موضوع صورت گرفته است. این پدیده کاربردهای متعددی از جمله ساخت لامپ های کوچک، بدون مولد الکتریکی و دارای عمر طولانی، که از اهداف اصلی این بررسی می باشد، دارد. به منظور بررسی میزان نوردهی ناشی از تحت تابش...

2003
R. Bernabei P. Belli F. Cappella F. Montecchia F. Nozzoli A. Incicchitti D. Prosperi R. Cerulli C. J. Dai H. H. Kuang J. M. Ma Z. P. Ye

The ≃ 100 kg highly radiopure NaI(Tl) setup of the DAMA project (DAMA/NaI) took data over seven annual cycles up to July 2002 and has achieved results on various rare processes. Its main aim has actually been the exploitation of the model independent WIMP annual modulation signature. After this conference the total exposure, collected during the seven annual cycles, was released. This cumulativ...

2008
R. Bernabei

The ≃ 250 kg highly radiopure NaI(Tl) DAMA/LIBRA apparatus, running at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N., is described.

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2009

Journal: :Journal of Cosmology and Astroparticle Physics 2015

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2016

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2010

Journal: :caspian journal of environmental sciences 2010
m. vahabi moghaddam a. sadremomtaz

natural radionuclides present in soil as well as certain anthropogenic radionuclides released to the environment are the major contributors to terrestrial outdoor exposures. in the assessment of human exposures from environmental radioactivity, besides the conventional method of soil and vegetation sampling combined with laboratory based analyses of environmental media, the other choice would b...

Journal: :International Journal of Modern Physics A 2017

2009
Marina F. Koskinas Carlos A. Pires Muhammad U. Rajput Ione M. Yamazaki Denise S. Moreira Mauro S. Dias

The standardization of Tl, using the 4π(PC)-NaI(Tl) coincidence system, is presented. The disintegration rate was determined by the extrapolation technique, using two methods: electronic discrimination and external absorbers. A Monte Carlo simulation program, developed in our laboratory, which predicts the behavior of the extrapolation curve, was applied and the results were compared with exper...

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