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SANS measurement was carried out at the NG7 at the NIST Center
for Neutron Research of the National Institute of Standards and
Technology. Incident neutron wavelength of 6  Å , with varying
sample-to-detector distance of 1, 15 and 4.5 m detector 25 mm
offset yields a scattering range of 0.0009 Å-1< Q < 0.4 Å-1, where
q =4¦Ð/ ¦Ësin(¦È/2) is the magnitude of momentum transfer vector,
and q is the scattering angle. After corrected for background and
detector efficiency, and converted to an absolute scale using direct
beamintensity, the 2D intensitywas circularly averaged to yield the
total structure factor, S(q) [42].
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Originally posted by ÏĶÏàËæ at 2011-07-12 10:46:41:
SANS measurement was carried out at the NG7 at the NIST Center
for Neutron Research of the National Institute of Standards and
Technology. Incident neutron wavelength of 6  &Aring; , with var ...

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wust67

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Originally posted by 8814402 at 2011-07-12 10:59:45:
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8814402

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where
q =4¦Ð/ ¦Ësin(¦È/2) is the magnitude of momentum transfer vector,
and q is the scattering angle.
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5Â¥2011-07-12 11:08:39
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ÒýÓûØÌû:
Originally posted by 8814402 at 2011-07-12 11:08:39:
where
q =4¦Ð/ ¦Ësin(¦È/2) is the magnitude of momentum transfer vector,
and q is the scattering angle.
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q=4¦Ð/¦Ësin£¨¦È/2£©,Ç°ÃæÊÇ´óдQ£¬ºóÃæ¦ÈÊǽǶÈÀ´µÄ£¬¦ÐÊÇÔ²ÖÜÂÊ3.1415926¡£¡£Âé·³¸ßÊÖ°ï°ïÎÒ°É£¬ÎÒ½«¸Ð¼¤²»¾¡°¡¡£¡£¡£
7Â¥2011-07-12 12:54:42
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8814402

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Originally posted by ÏĶÏàËæ at 2011-07-12 12:54:42:
q=4¦Ð/¦Ësin£¨¦È/2£©,Ç°ÃæÊÇ´óдQ£¬ºóÃæ¦ÈÊǽǶÈÀ´µÄ£¬¦ÐÊÇÔ²ÖÜÂÊ3.1415926¡£¡£Âé·³¸ßÊÖ°ï°ïÎÒ°É£¬ÎÒ½«¸Ð¼¤²»¾¡°¡¡£¡£¡£

q is the scattering angle=£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿
8Â¥2011-07-12 17:06:37
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qxgr6110

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Originally posted by 8814402 at 2011-07-12 17:06:37:
q is the scattering angle=£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿

²»ºÃÒâ˼£¬¿ªÊ¼Åª´íÁË£¬²»ÊÇq, ¶øÊÇÏ£À°×Öĸ ¦È  is the scattering angle
9Â¥2011-07-12 17:16:13
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8814402

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ÏĶÏàËæ(½ð±Ò+30, ·­ÒëEPI+1): ÂúÒâ£¬ÕæÊÇÌ«¸ÐлÁË 2011-07-12 17:46:41
SANS measurement was carried out at the NG7 at the NIST Center for Neutron Research of the National Institute of Standards and Technology. С½ÇÖÐ×ÓÉ¢Éä²âÁ¿ÔÚÃÀ¹ú¹ú¼Ò±ê×¼ºÍ¼¼ÊõÑо¿ÔºÖÐ×ÓÑо¿ÖÐÐĵÄNG7½øÐС£Incident neutron wavelength of 6  Å , with varying sample-to-detector distance of 1, 15 and 4.5 m detector 25 mm offset yields a scattering range of 0.0009 Å-1< Q < 0.4 Å-1, whereq =4¦Ð/ ¦Ësin(¦È/2) is the magnitude of momentum transfer vector,and q is the scattering angle. ÈëÉäÖÐ×Ó²¨³¤Îª6  Å£¬ÑùÆ·-¼ì²âÆ÷¾àΪ1, 15 and 4.5 m£¬¼ì²âÆ÷²¹³¥Îª25mmʱ£¬µÃµ½É¢É䷶ΧΪ0.0009 Å-1< Q < 0.4 Å-1£¬ÆäÖÐQ=4¦Ð/ ¦Ësin(¦È/2)Ϊ¶¯Á¿×ªÒÆÊ¸Á¿µÄ´óС£¬¦ÈΪɢÉä½Ç¡£After corrected for background and detector efficiency, and converted to an absolute scale using direct beamintensity, the 2D intensity was circularly averaged to yield the total structure factor, S(q) [42]. ÔÚ¶Ô±³¾°ºÍ¼ì²âÆ÷ЧÂʽøÐÐУÕýºó£¬¶þάǿ¶ÈÒÔÖ±½Ó¹âÊøÁÁ¶Èת»¯Îª¾ø¶Ô±ê¶È£¬Ñ­»·Æ½¾ùµÃµ½ÕûÌå½á¹¹Òò×ÓS(q)¡£


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