Manufacturing and characterization of a modified four-quadrant position sensitive detector for out-door applications
2004 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 531, no 1-2, 134-139 p.Article in journal (Refereed) Published
Position sensing detectors (PSDs) are useful in many applications such as vibration, displacement and triangulation measurements. In this paper we have constructed a novel structure, which has higher inter-electrode resistance than a lateral effect PSD and is more robust to atmospheric turbulence than a conventional four-quadrant PSD (Nuclear Instruments and Methods in Physics Research A 466 (2001) 183). The detector structure is useful for applications with detector windows less than 0.5 x 0.5 mm(2), but the nonlinearity is the main concern for a detector of that size. Without any corrections for non-linearity the standard deviation of the error is 9 mum (2.2%). Using a simple analytical expression and a 2-d correction-function stored in a look-up table the positioning error is reduced to 6 (1.5%) and 2 (0.5%) mum, respectively.
Place, publisher, year, edition, pages
2004. Vol. 531, no 1-2, 134-139 p.
4Q, PSD, detectors
IdentifiersURN: urn:nbn:se:kth:diva-40565DOI: 10.1016/j.nima.2004.05.105ISI: 000224233400019ScopusID: 2-s2.0-4544299821OAI: oai:DiVA.org:kth-40565DiVA: diva2:441555
QC 20110916. 5th International Worshop on Radiation. Riga. 7 September 2003 through 11 September 20032011-09-162011-09-162012-03-19Bibliographically approved