The High Temperature Materials Laboratory: A research and user facility at the Oak Ridge National Laboratory

EVALUASI DAN PERKEMBANGAN PEMBUATAN BAHAN BAKAR KERNEL UO2 DI PTAPBBATANYOGYAKARTA Telah dilakukan evaluasi pembuatan bahan bakar kernel UO2 sertaperkembangannya di Bidang Kimia dan Teknologi Proses Bahan (BKTPB) – PTAPB - BATAN Yogyakarta.Pembuatan kernel UO2 telah dilakukan dengan metode gelasi internal maupun eksternal. Metode gelasiinternal dilakukan dengan cara kombinasi proses KEMA-HKFA (Keuringvan Electrotecnische Materialenat Arnhem-Hkernforchungsanlage) maupun dengan proses ORNL (Oak Ridge National Laboratory),sedangkan metode gelasi eksternal dilakukan dengan proses emulsifikasi NUKEM (Nuclear Chemie undMetalurgie Gmbh). Dengan metode gelasi internal, telah dilakukan berbagai optimasi kondisi prosesnya.Hasil sementara menunjukkan bahwa proses yang paling baik adalah proses ORNL menggunakan mediagelasi TCE (tricloro etilena). Dengan metode gelasi eksternal, telah diperoleh beberapa kondisi optimum,namun masih perlu dilakukan optimasi lebih lanjut. Untuk memilih metode gelasi internal atau eksternaltergantung pada kemudahan proses, murah secara ekonomi serta yang memberikan hasil terbaik.Pemilihan metode belum bisa diputuskan karena belum semua variabel proses dioptimasi. Penelitianmengenai pelapisan kernel UO2 menggunakan silikon karbida (SiC) maupun pirokarbon (PyC) barumerupakan tahap awal, sehingga masih diperlukan optimasi berbagai variabel prosesnya. Penelitianpembuatan kernel UO2 di BKTPB – BATAN Yogyakarta direncanakan untuk pembuatan inti elemen bakarbentuk bola untuk HTR (High Temperature Reactor) dan dikembangkan sebagai bahan awal prosespembuatan pelet (proses SGMP = Sol-Gel Microsphere Pelletization) untuk PHWR (Pressurized HeavyWater Reactor).

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The Bio-SANS instrument at the High Flux Isotope Reactor of Oak Ridge National Laboratory

Journal of Applied Crystallography ◽

10.1107/s1600576714011285 ◽

2014 ◽

Vol 47 (4) ◽

pp. 1238-1246 ◽

Cited By ~ 51

Author(s):

William T. Heller ◽

Volker S. Urban ◽

Gary W. Lynn ◽

Kevin L. Weiss ◽

Hugh M. O'Neill ◽

...

Keyword(s):

Neutron Scattering ◽

National Laboratory ◽

Isotopic Labeling ◽

High Flux ◽

Oak Ridge ◽

Oak Ridge National Laboratory ◽

User Facility ◽

Technical Specifications ◽

And Performance ◽

Sans Instrument

Small-angle neutron scattering (SANS) is a powerful tool for characterizing complex disordered materials, including biological materials. The Bio-SANS instrument of the High Flux Isotope Reactor of Oak Ridge National Laboratory (ORNL) is a high-flux low-background SANS instrument that is, uniquely among SANS instruments, dedicated to serving the needs of the structural biology and biomaterials communities as an open-access user facility. Here, the technical specifications and performance of the Bio-SANS are presented. Sample environments developed to address the needs of the user program of the instrument are also presented. Further, the isotopic labeling and sample preparation capabilities available in the Bio-Deuteration Laboratory for users of the Bio-SANS and other neutron scattering instruments at ORNL are described. Finally, a brief survey of research performed using the Bio-SANS is presented, which demonstrates the breadth of the research that the instrument's user community engages in.

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Plug-in scripts for EFTEM automation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100165197 ◽

1996 ◽

Vol 54 ◽

pp. 546-547

Author(s):

N. D. Evans ◽

M. K. Kundmann

Keyword(s):

Electron Microscopy ◽

National Laboratory ◽

Oak Ridge ◽

Multiple User ◽

Transmission Electron ◽

Short Period ◽

User Facility ◽

Instrument Control ◽

And Control ◽

Research Equipment

Post-column energy-filtered transmission electron microscopy (EFTEM) is inherently challenging as it requires the researcher to setup, align, and control both the microscope and the energy-filter. The software behind an EFTEM system is therefore critical to efficient, day-to-day application of this technique. This is particularly the case in a multiple-user environment such as at the Shared Research Equipment (SHaRE) User Facility at Oak Ridge National Laboratory. Here, visiting researchers, who may oe unfamiliar with the details of EFTEM, need to accomplish as much as possible in a relatively short period of time.We describe here our work in extending the base software of a commercially available EFTEM system in order to automate and streamline particular EFTEM tasks. The EFTEM system used is a Philips CM30 fitted with a Gatan Imaging Filter (GIF). The base software supplied with this system consists primarily of two Macintosh programs and a collection of add-ons (plug-ins) which provide instrument control, imaging, and data analysis facilities needed to perform EFTEM.

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