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  • 1
    Electronic Resource
    Electronic Resource
    Hyperfine structure separations in the ground state multiplet of the stable carbon isotope ^1^3C
    Amsterdam : Elsevier
    Physics Letters A 29 (1969), S. 461-462 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(69)90522-2
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  • 2
    Electronic Resource
    Electronic Resource
    Precision measurement of the hyperfine structure of ^1^7^5Lu with the atomic beam magnetic resonance method
    Amsterdam : Elsevier
    Physics Letters A 34 (1971), S. 21-22 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(71)90977-7
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  • 3
    Electronic Resource
    Electronic Resource
    A kicker magnet for sweeping ion beams from a medical cyclotron
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 256 (1987), S. 434-438 
    Details
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9002(87)90285-3
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  • 4
    Electronic Resource
    Electronic Resource
    Improved therapeutic response by distinct timing of multiple heat treatments during interstitial radiation in the Dunning R3327 prostate tumor model (1998)
    Springer
    Journal of cancer research and clinical oncology 124 (1998), S. 172-178 
    Details
    ISSN: 1432-1335
    Keywords: Key words Brachytherapy ; Hyperthermia ; Combined treatment modality ; Animal study ; Dose rate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose: As a continuation of a previous study showing the efficacy of a single local tumor heat treatment (LTH) in combination with interstitial radiation (IR) in the Dunning tumor system R3327 (subline AT1), we evaluated higher doses and/or lower dose rates with an extended time course of IR treatment, which allowed greater flexibility for LTH applications. Methods; IR was carried out by the insertion of one removable 192Ir seed into the center of a R3327-AT1 tumor, transplanted s.c. into the distal thigh of Copenhagen rats. LTH (43.5°C, for 35 min) varied from one treatment just before IR to multiple applications beginning at 0 h and repeated every 48 h or 72 h. Results: The Dunning subline R3327-AT1 is a very thermoresistant tumor, which did not reveal any thermal response when heated up to 44.5°C for 35 min. IR alone produced a delay in tumor growth, related to dose and dose rates of 18–53 cGy/h. During longer treatment times, a single LTH just before the IR was no more effective than IR alone. Thermoradiotherapy with multiple LTH treatments given at intervals of between 48 h and 72 h resulted in a clear increase in growth delay. Radiosensitization was highest in all dose-rate groups where LTH was applied every 72 h during a complete course of IR. Conclusions; These results demonstrate the importance of administering a sequence of multiple applications of LTH during continuous low-dose-rate irradiation and they substantiate our earlier findings, with shorter exposure times, where one LTH given every 72 h appeared to be most efficient in the combined treatment of the Dunning rat prostate tumor R3327-AT1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004320050151
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  • 5
    Electronic Resource
    Electronic Resource
    Atomic beam magnetic resonance investigations in the 2p 2 3 P ground multiplet of the stable carbon isotopes12C and13C (1970)
    Springer
    The European physical journal 236 (1970), S. 337-351 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure seperations Δv andg J -factors have been measured in the 2p 2 3 P states of13C(I=1/2) and12C(I=0), respectively, using the atomic beam magnetic resonance method. The results are Δv(3 P 1,13C)=4.200 (25) MHz, Δv(3 P 2,13C)=372.593 (25) MHz,g J (3 P 1,12C)=1.501052 (13), andg J (3 P 2,12C)=1.501039 (15). After applying corrections due to perturbations by neighbouring fine structure levels one deduces the constants of the magnetic dipole interactionA(3 P 1,13C)=+2.838 (17) MHz, A(3 P 2,13C)=+149.055 (10) MHz. No signs of theA-factors were determined by the experiment; they follow from the known positive sign of the nuclear magnetic moment μ I of13C. CombiningA(3 P 2,13C) with the results of other measurements on11C, yields μ I (11C)=−0.964 (1) nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402403
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  • 6
    Electronic Resource
    Electronic Resource
    The hyperfine structure of the ground state of Ho165 (1972)
    Springer
    The European physical journal 252 (1972), S. 412-420 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the atomic beam magnetic resonance method four hyperfine structure frequencies have been measured in the ground state4 I 15/2 of Ho165 with high precision at magnetic fields of up to 800 Oersted. In the analysis of these measurements a possible electrical sedecimpole (16-pole) interaction was included. The following multipole interaction constants could be calculated:A=800.582 8 (14) MHzB=−1668.100 (91) MHzC=−2224 (7520) HzD=−398 (790) Hz. Thus within the limits of this experiment no octopole or sedecimpole interaction could be established.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01379734
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  • 7
    Electronic Resource
    Electronic Resource
    Precision measurement of the hyperfine structure of Lu175 with the atomic beam magnetic resonance method (1973)
    Springer
    The European physical journal 264 (1973), S. 95-108 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The hyperfine structure separations of both doublet states2 D 3/2 and2 D 5/2 of the ground state configuration 6s 2 5d of Lu175 have been remeasured with high precision using the atomic beam magnetic resonance method. Magnetic dipole transitions between Zeeman components of the hfs levels were induced applying Ramsey's technique of separated oscillatory fields whenever the field dependence of the resonances was small enough. The hfs intervals at zero field and hfs interaction constants were derived from the measurements. The constants were then corrected for hfs perturbations between the two levels of the doublet. Configuration interaction has been taken into account for the calculation of the dipole matrix elements. The corrected hfs constants are:J=3/2:A=194.332921 (300) MHzB=1511.396 267 (320) MHzC=−70 (19) HzJ=5/2:A=146.776 472 (138) MHzB=1860.656132 (840) MHzC=913 (162) HzD=−16 (24) Hz A quadrupole hfs anomaly between Lu175 and Lu176m was not found when comparing the following two ratios: Lu175:B(5/2)/B(3/2)=1.2310850 (16) Lu176m :B(5/2)/B(3/2)=1.2310818 (30). So far we have not succeeded in computing an octopole moment from the twoC-factors for the terms2 D 3/2,5/2 because the influence of higher configurations could not sufficiently be considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01398935
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  • 8
    Electronic Resource
    Electronic Resource
    Contribution to cyclotron targetry (1994)
    Springer
    Journal of radioanalytical and nuclear chemistry 182 (1994), S. 445-450 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In a previous article1 we reported results on the distribution of18F activity in the gas target. The present paper continues to report on experimental studies of physicochemical effects involved in the20Ne(d, α)18F reaction, with the aim to improve the recovery of18F in both chemical forms i.e.18Fe−F2 and18F−F− from the target, without adding fluorine carrier. The choice of optimum target construction material is a very important factor for achieving a high extraction rate and high specific activity of the product. Recovery and desorption of the18F-activity from the surfaces of various metal foils in the liquid and gas phases have been investigated. This study is of interest from both the practical and theoretical point of view.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037522
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  • 9
    Electronic Resource
    Electronic Resource
    Contribution to cyclotron targetry (1994)
    Springer
    Journal of radioanalytical and nuclear chemistry 182 (1994), S. 237-245 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Experimental methods for distribution and quantification of activity in a neon target bombarded by deuteron particles are presented and evaluated. Optimum target handling for medical radionuclide applications is important for achieving high yields, high specific activity, and a low rate of radiocontaminants with a minimum of cyclotron beam time. The mechanism of activity distribution and its importance are studied in relation to other considerations necessary for optimizing gas target performance in radiopharmaceutical applications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037499
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