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Future lunar mission Active X-ray Spectrometer development: Surface roughness and geometry studies
Naito, M.,Hasebe, N.,Kusano, H.,Nagaoka, H.,Kuwako, M.,Oyama, Y.,Shibamura, E.,Amano, Y.,Ohta, T.,Kim, K.J.,Lopes, J.A.M. Elsevier 2015 Nuclear instruments & methods in physics research. Vol.788 No.-
<P><B>Abstract</B></P> <P>The Active X-ray Spectrometer (AXS) is considered as one of the scientific payload candidates for a future Japanese mission, SELENE-2. The AXS consists of pyroelectric X-ray generators and a Silicon Drift Detector to conduct X-Ray Fluorescence spectroscopy (XRF) on the Moon to measure major elements: Mg, Al, Si, Ca, Ti, and Fe; minor elements: Na, K, P, S, Cr and Mn; and the trace element Ni depending on their concentration. Some factors such as roughness, grain size and porosity of sample, and the geometry of X-ray incidence, emission and energy will affect the XRF measurements precision. Basic studies on the XRF are required to develop the AXS. In this study, fused samples were used to make homogeneous samples free from the effect of grain size and porosity. Experimental and numerical studies on the XRF were conducted to evaluate the effects from incidence and emission angles and surface roughness. Angle geometry and surface roughness will be optimized for the design of the AXS on future missions from the results of the experiment and the numerical simulation.</P>
AmpFlSTR<sup>(</sup>R) MiniFiler(TM) PCR amplification kit: The new miniSTR multiplex kit
Andrade, L.,Bento, A.M.,Serra, A.,Carvalho, M.,Gamero, J.J.,Oliveira, C.,Batista, L.,Lopes, V.,Balsa, F.,Corte-Real, F.,Anjos, M.J. Elsevier 2008 Forensic science international. Genetics. Suppleme Vol.1 No.1
The AmpFlSTR<SUP>(</SUP>R) MiniFiler(TM) PCR amplification kit (Applied Biosystems), a new available 8-miniSTR and the sex determining marker Amelogenin multiplex, includes the most common problematic loci (above 200bp) of the AmpFlSTR<SUP>(</SUP>R) Identifiler(TM) PCR amplification kit: FGA, D21S11, D18S51, D13S317, D7S820, D16S539, CSF1PO and D2S1338. Several casework samples with different DNA contents were tested. Results allowed to complete partial Identifiler(TM) profiles and additional information was achieved in low copy number (LCN) samples, revealing that this miniSTR kit can improve identification of compromised samples.