Final Report for the “WSU Neutron Capture Therapy Facility Support”

The objective for the cooperative research program for which this report has been written was to provide separate NCT facility user support for the students, faculty and scientists who would be doing the U.S. Department of Energy Office (DOE) of Science supported advanced radiotargeted research at the WSU 1 megawatt TRIGA reactor. The participants were the Idaho National laboratory (INL, P.I., Dave Nigg), the Veterinary Medical Research Center of Washington State University (WSU, Janean Fidel and Patrick Gavin), and the Washington State University Nuclear Radiation Center (WSU, P.I., Gerald Tripard). A significant number of DOE supported modifications were made to the WSU reactor in order to create an epithermal neutron beam while at the same time maintaining the other activities of the 1 MW reactor. These modifications were: (1) Removal of the old thermal column. (2) Construction and insertion of a new epithermal filter, collimator and shield. (3) Construction of a shielded room that could accommodate the very high radiation field created by an intense neutron beam. (4) Removal of the previous reactor core fuel cluster arrangement. (5) Design and loading of the new reactor core fuel cluster arrangement in order to optimize the neutron flux entering the epithermal neutron filter. (6) The integration of the shielded rooms interlocks and radiological controls into the SCRAM chain and operating electronics of the reactor. (7) Construction of a motorized mechanism for moving and remotely controlling the position of the entire reactor bridge. (8) The integration of the reactor bridge control electronics into the SCRAM chain and operating electronics of the reactor. (9) The design, construction and attachment to the support structure of the reactor of an irradiation box that could be inserted into position next to the face of the reactor. (Necessitated by the previously mentioned core rearrangement). All of the above modifications were successfully completed and tested. The resulting epithermal beam of 1 x 10{sup 9} n/sec-cm{sup 2} was measured by Idaho National Laboratory with assistance from WSU's Neutron Activation Analysis Group. The beam is as good as our initial proposals for the project had predicted. In addition to all of the design, construction and insertion of the hardware, shielding, electronics and radiation monitoring systems there was considerable manpower and effort put into changes in the Technical Specifications of the reactor and implementing procedures for use of the new facility. This staff involvement is one of the reasons we requested special facility support from the DOE. Once the facility was competed and all of the recalibrations and measurements made to characterize the differences between this reactor core and the previous core we began to assist INL in making their beam measurements with foils and phantoms. Although we proposed support for only one additional staff position to support this new NCT facility the staff support provided by the WSU Nuclear Radiation Center was greater than had been anticipated by our initial proposal. INL was also assisted in the testing of a heavy water (deuterated water) bladder that can be inserted into the collimator in order to produce an intense, external thermal neutron beam. The external epithermal and/or thermal neutron beam capability remains available for use, if funding becomes available for future research projects

Construction of the WSU Epithermal Neutron Filter

Moderating material has been installed in the original thermal-neutron filter region of the Washington State University (WSU) TRIGA™ type reactor to produce an epithermal-neutron beam. Attention has been focused upon the development of a convenient, local, epithermal-neutron beam facility at WSU for collaborative Idaho National Engineering and Environmental Laboratory (INEEL)/WSU boron neutron capture therapy (BNCT) preclinical research and boronated pharmaceutical screening in cell and animal models. The design of the new facility was performed in a collaborative effort1,2 of WSU and INEEL scientists. This paper summarizes the physical assembly of this filter

Measurement of the Spin Correlation Parameters all and Asl for the Reaction Pp-]D-Pi+ in the Energy Region 500-800 Mev

Journals published by the American Physical Society can be found at http://publish.aps.org

np-elastic analyzing power A(N0) at 485 and 788 MeV

Journals published by the American Physical Society can be found at http://publish.aps.org/Measurements are reported for the np-elastic analyzing power from 30 degrees to 128 degrees c.m., at 485 and 788 MeV, with a typical precision of 0.005 and absolute accuracy of 2%. Results strengthen the isospin-0 phase-shift analysis, and clarify the absolute normalization of the polarized neutron beam and the isospin-0 inelasticity

Analyzing Power Measurement for Forward Angle N-P Scattering at 790 Mev

Journals published by the American Physical Society can be found at http://publish.aps.org

Measurements of Spin-Correlation Parameters all and Asl for P-]P-]-]Pid between 500 and 800 Mev

Journals published by the American Physical Society can be found at http://publish.aps.org

np elastic spin-transfer measurements at 485 and 635 MeV

Journals published by the American Physical Society can be found at http://publish.aps.org/We have measured the spin-transfer parameters K(LL), K(SL), K(LS) and K(SS) at 635 MeV from 50-degrees to 178-degrees c.m. and at 485 MeV from 74-degrees to 176-degrees c.m. These new data have a significant impact on the phase-shift analyses. There are now sufficient data near these energies to overdetermine the elastic nucleon-nucleon amplitudes

np elastic spin transfer measurements at 788 MeV

Journals published by the American Physical Society can be found at http://publish.aps.org/We have measured the spin-transfer parameters K(LL), K(SL), K(LS), and K(SS) at 788 MeV from 47-degrees to 177-degrees c.m., and also uncovered a 10-16 % normalization discrepancy which affects all previous np elastic spin data from LAMPF. Results disagree significantly from previous phase-shift predictions. With the inclusion of these new data the NN phase shifts and amplitudes (isospin 0 and 1) become well determined for the first time near 800 MeV

Le personnel enseignant de l’enseignement technique

Tripard L. Le personnel enseignant de l’enseignement technique. In: La revue pédagogique, tome 59, Juillet-Décembre 1911. pp. 451-454

Avian tuberculosis and prophylaxis of bovine tuberculosis

L’auteur confirme, par ses observations cliniques recueillies lors de campagnes de prophylaxie antituberculeuse, l’importance de la tuberculose aviaire. Cette dernière, en effet, peut entraîner une réaction positive de faible amplitude à la tuberculine humano-bovine sur un certain nombre de bovins. L’infection évolue spontanément, en quelques mois, vers la guérison : des oiseaux divers (poules, pigeons et même oiseaux de nuit) peuvent être à l’origine de l’infection tuberculeuse des bovins. En aucun cas, ces réactions ne peuvent servir de prétexte pour s’oppo ser à la prophylaxie antituberculeuse fondée sur les épreuves à la tuber culine et qui ont largement fait leurs preuves. Mais la connaissance de l’interférence de la tuberculose aviaire incite à beaucoup de prudence dans l’interprétation des réactions tuberculiniques.Avian tuberculosis can induce a slight positive response to humano- bovine tuberculin on some cattle animals. Birds (hen, fowl and even night birds) seem responsible of avian origin tuberculous infection of cattle. The disease spontaneously evolutes to recovery in a few months. In no case, those reactions from avian origin can prevent the antituberculous prophylaxy based on the tuberculin chalenges which proved to be undoubtly reliable