Sökning: "12C n"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden 12C n.

  1. 1. From Particle-Production Cross Sections to KERMA and Absorbed Dose for the Case 96 MeV n-12C Interactions

    Författare :Bel E. Bergenwall; Ayşe Ataç; Eva Lund; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Fast neutrons; En = 96 MeV; charged-particle production; 12C n; px ; 12C n; dx ; 12C n; tx ; 12C n; 3Hex ; 12C n; ax reactions; cross sections; KERMA; microscopic measurements; absorbed dose; Kärnfysik; Nuclear physics; Kärnfysik;

    Sammanfattning : Neutron-carbon interactions have been studied with a focus on charged-particle production of relevance to radiation protection and medical applications, such as cancer therapy. The measurements have been performed using the particle-detection setup, MEDLEY, and the 96 MeV neutron beam at the The Svedberg Laboratory in Uppsala. LÄS MER

  2. 2. Development of Palladium-Promoted 11C/12C-Carbonylations and Radiosynthesis of Amyloid PET Ligands

    Författare :Patrik Nordeman; Gunnar Antoni; Mats Larhed; Luke R Odell; Antony D Gee; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Palladium; Carbonylation; Positron emission tomography; PET; Carbon-11; Fluor-18; Radiochemistry; Amyloidosis; Palladium; Karbonyleringar; Positronemissionstomografi; PET; Kol-11; Fluor-18; Radiokemi; Amyloidos; Pharmaceutical Science; Farmaceutisk vetenskap; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi; Medicinal Chemistry; Läkemedelskemi;

    Sammanfattning : In the first part of this thesis, palladium(0)-catalyzed and -mediated carbonylations are discussed. Paper I describes a new method for the safe, efficient use of a solid carbon monoxide source in the synthesis of primary and secondary benzamides. LÄS MER

  3. 3. Intramolecular isotope analysis reveals plant ecophysiological signals covering multiple timescales

    Författare :Thomas Wieloch; Jürgen Schleucher; Mats Nilsson; Gerd Gleixner; Lisa Wingate; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NMR spectroscopy; tree ring; isotope ratio; isotope effect; intramolecular 13C 12C signal; carbon allocation; acclimation; plant performance; climate reconstruction; plant ecophysiology;

    Sammanfattning : Our societies' wellbeing relies on stable and healthy environments. However, our current lifestyles, growth-oriented economic policies and the population explosion are leading to potentially catastrophic degradation of ecosystems and progressive disruption of food chains. LÄS MER

  4. 4. Elastic Neutron Scattering at 96 MeV

    Författare :Joakim Klug; Jan Blomgren; Arjan Plompen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; neutron; detection; CsI; elastic scattering; differential cross section; optical potential; kerma; Kärnfysik; Nuclear physics; Kärnfysik; Applied Nuclear Physics; Tillämpad kärnfysik;

    Sammanfattning : A facility for studies of elastic neutron scattering in the 50–130 MeV range has been developed. In addition to elastic neutron scattering, it has been used for (n,p) and (n,d) reaction experiments. The performance of the device has been illustrated in measurements of the (n,p) and (n,n) cross sections on 1H and 12C. LÄS MER

  5. 5. Study of Halo Nuclei Breakup on Light Targets at Intermediate and High Energies

    Författare :Ioulia Parfenova; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 6He; 15C; cross sections; 8B; longitudinal momentum distributions; D; radioactive beams; halo nucleus; nuclear breakup reactions; 11Be;

    Sammanfattning : The study of exotic nuclei is one of the most important topics in modern nuclear physics. It allows general understanding of the structure and nature of light nuclear systems in the vicinity of the driplines. LÄS MER