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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Novel [gamma]-ray and thermal-neutron scintillators : search for high-light-yield and fast-response materials /

Birowosuto, Muhammad Danang. January 1900 (has links)
Thesis (Ph.D.)--Delft University of Technology, 2008. / Vita. Includes bibliographical references.

The response of organic scintillators to neutrons of energy 14-63 MeV

Buffler, A 21 September 2023 (has links) (PDF)
The response of a 5 cm (diameter) by 5 cm cylindrical NE213 liquid scintillator to neutrons has been measured as a function of neutron energy in the range 15-63 Me V, using time-of-flight to select neutron energy. The response function at each neutron energy was separated into components associated with the emission of different charged particles, identified by pulse · shape dissimilation to be protons, deuterons, and alphas, respectively. The response (light output) of NE213 to protons, deuterons and alphas was measured as a function of energy. Furthermore, total cross sections for neutron-induced proton, deuteron, and alpha production from 12C were determined from the charged particle yields. The simultaneous presence of n-p elastic scattering in the scintillator provided a reference for establishing an absolute cross section scale for the measurements. The results give information about reaction mechanisms and provide an improved basis for determining the neutron detection efficiency of the scintillator as a function of energy over this range.

The development of small CsI(Tl)-photodiode detectors for gamma-ray astronomy

Carter, Tony January 1995 (has links)
No description available.

Synthesis, characterization, and crystal chemistry of new borate optical materials

Cox, James Raymond 23 November 1993 (has links)
Graduation date: 1994

The proton response of liquid scintillators

Wood, Merri Margaret Harrison 05 1900 (has links)
No description available.

Physical properties of liquid scintillators

Grach, Peter D January 2006 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2006. / Includes bibliographical references (leaves 38-40). / vi, 40 leaves, bound ill. 29 cm

Heavy metal loaded organic scintillators

Alkhafaji, Salih. January 1978 (has links)
Thesis (M.S.)--University of Michigan, 1978.

The response of pure organic crystals to ionising radiations

King, J W January 1953 (has links)
The introduction contains introductory remarks on scintillation counters together with a brief description of the exciton theory believed to be the means of primary energy migration within organic crystals. Part I contains a review of the data published on the reletive responses of different organic crystals and the attempted correlations of these results with the molecular structures of the different phosphors. From data which may be accepted as being both reliable and suitable for comparison it is concluded that theories involving correlations between phosphor efficiencies and molecular structures may be tested only if the efficiency data has (i) been extrapolated to give results for crystals of very small thickness and {ii) been obtained at very low temperatures. Part II contains accurate calculations based on the exciton theory proposed by Birks (1951 ) to account for the response of crystals to different types of ionising radiations. Satisfactory agreement is obta1ned with all the avalable experimental data in the literature. In part III an account is given of the response of organic crystals observed by the author for low-energy ⋉particles, and of the similar behaviour found by Taylor et al, (1951 ) for low-energy electrons. A possible extension of the theory described in part II, allowing for the escape of excitons through the crystal surface is given accounting for this behaviour. An exciton mean free path in anthracene, terphenyl and stilbene of about 3 - 7/u is obtained. Results were obtained with strong ⋉-particle sources which could not be explained. in terms ot normal response of the phosphor used. This effect was inventigatea as described in part IV, and it is shown that photons are produced in air, glass and quartz when these materials are irradiated by ⋉particles. This luminescence was probably responsible for the "scintillations" which Richards and Cole (1951) have ascribed to thin films of various materials. Problems requiring further investigation are indicated.

Gain degradation and amplitude scintillation due to tropospheric turbulence /

Theobold, David McClead January 1978 (has links)
No description available.

Methods of neutron flux determination by means of organic scintillator in neutron-gamma ray mixed field.

January 1987 (has links)
by Chan Chi-Ming. / Chinese title in romanization: Zai zhong zi-r she xian hun he chang zhong, yong you ji shan yue ti ce liang zhong zi tong liang di fang fa. / Thesis (M.Ph.)--Chinese University of Hong Kong, 1987. / Bibliography: leaves 142-149.

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