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Abstract

One of the major difficulties to study the 235-U**m (n-th,f) cross-section is the short half-life of the target nuclide (t1/2 = 26.1 min), so that an easy to operate system of routine production of appropriate targets installed close to the irradiation facility is required. Such a system was realized in the form of a 40 cm diameter aluminium sphere internally evaporated with 238-PuF-3 and with an internal vacuum of 10**-2 torr. The @#%-U**m recoils are collected on gold coated polyimide foils which are introduced via a movable target holder and which are put at a negative potential to increase the recoil efficiency. The number of collected nuclei is controlled using a channeltron. The system shows several advantages compared to systems described earlier.

Additional information

Authors: PAUWELS J, JRC GEEL ESTAB. (BELGIUM);SCK/CEN, MOL (BELGIUM);EYKENS R, JRC GEEL ESTAB. (BELGIUM);SCK/CEN, MOL (BELGIUM);D'EER A, JRC GEEL ESTAB. (BELGIUM);SCK/CEN, MOL (BELGIUM);WAGEMANS C, JRC GEEL ESTAB. (BELGIUM);SCK/CEN, MOL (BELGIUM);NEVE DE MEVERGNIES M JRC GEEL ESTAB. (BELGIUM), JRC GEEL ESTAB. (BELGIUM);SCK/CEN, MOL (BELGIUM);SCK/CEN, MOL (BELGIUM), JRC GEEL ESTAB. (BELGIUM);SCK/CEN, MOL (BELGIUM)
Bibliographic Reference: 13TH WORLD CONFERENCE OF THE INTERNATIONAL NUCLEAR TARGET DEVELOPMENT SOCIETY, CHALK RIVER, ONTARIO (CANADA), SEPT. 17-19, 1986 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32744 ORA
Availability: Can be ordered online
Record Number: 1989125001200 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en