TY - JOUR
T1 - The preparation of a 239Pu mother source for the production of 235mU targets
AU - Pauwels, J.
AU - Eykens, R.
AU - D'eer, D.
AU - Wagemans, C.
AU - de Mevergnies, M. Neve
PY - 1987/6/1
Y1 - 1987/6/1
N2 - One of the major difficulties to study the properties of 235mU is the short half-life of the target nuclide (t 1 2=26.1 min), so that an easy to operate system of routine production of appropriate targets installed close to the measuring facility is required. Such a system was developed in the form of a 40 cm diameter aluminium sphere internally coated by vacuum deposition with 239PuF3. The 235mU recoils are collected in vacuum on gold-coated polyimide foils which are introduced via a movable target holder and are put at a negative potential to increase the collection efficiency. At 1 kV and 1 Pa the number of collected nuclei after one half-life is 8 × 109. Contamination by 239Pu is negligible.
AB - One of the major difficulties to study the properties of 235mU is the short half-life of the target nuclide (t 1 2=26.1 min), so that an easy to operate system of routine production of appropriate targets installed close to the measuring facility is required. Such a system was developed in the form of a 40 cm diameter aluminium sphere internally coated by vacuum deposition with 239PuF3. The 235mU recoils are collected in vacuum on gold-coated polyimide foils which are introduced via a movable target holder and are put at a negative potential to increase the collection efficiency. At 1 kV and 1 Pa the number of collected nuclei after one half-life is 8 × 109. Contamination by 239Pu is negligible.
UR - http://www.scopus.com/inward/record.url?scp=0022733466&partnerID=8YFLogxK
U2 - 10.1016/0168-9002(87)91169-7
DO - 10.1016/0168-9002(87)91169-7
M3 - Article
AN - SCOPUS:0022733466
SN - 0168-9002
VL - 257
SP - 21
EP - 25
JO - Nuclear Inst. and Methods in Physics Research, A
JF - Nuclear Inst. and Methods in Physics Research, A
IS - 1
ER -