A lens system consisting of two electrostatic quadrupole triplets has been designed and constructed at the Radiological Research Accelerator Facility (RARAF) of Columbia University. The lens system has been used to focus 6-MeV (4)He ions to a beam spot in air with a diameter of 0.8 µm. The quadrupol
✦ LIBER ✦
A sub-micron particle filter in silicon
✍ Scribed by Gjermund Kittilsland; Göran Stemme; Bengt Nordén
- Book ID
- 103957386
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 483 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0924-4247
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## Abstract A porous silicon (PS) based particle filter has been fabricated and tested for integrated microsystems. By engineering the morphology of the porous silicon membrane, depth filtration with high collection efficiency in the submicron range (0.3∼1 μm), low pressure‐drop, and large filtrati