PMID- 26429492
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20151223
LR  - 20151002
IS  - 1089-7623 (Electronic)
IS  - 0034-6748 (Linking)
VI  - 86
IP  - 9
DP  - 2015 Sep
TI  - Note: Detector collimators for the nanoscale ordered materials diffractometer 
      instrument at the Spallation Neutron Source.
PG  - 096105
LID - 10.1063/1.4930279 [doi]
AB  - Five neutron collimator designs were constructed and tested at the nanoscale 
      ordered materials diffractometer (NOMAD) instrument. Collimators were made from 
      High Density PolyEthylene (HDPE) or 5% borated HDPE. In all cases, collimators 
      improved the signal to background ratio and reduced detection of secondary 
      scattering. In the Q-range 10-20 A(-1), signal to background ratio improved by 
      factors of approximately 1.6 and 2.0 for 50 and 100 mm deep collimators, 
      respectively. In the Q-range 40-50 A(-1), the improvement factors were 1.8 and 
      2.7. Secondary scattering as measured at Q  approximately  9.5 A(-1) was significantly 
      decreased when the collimators were installed.
FAU - Tamalonis, A
AU  - Tamalonis A
AD  - Materials Development, Inc., Arlington Heights, Illinois 60004, USA.
FAU - Weber, J K R
AU  - Weber JK
AD  - Materials Development, Inc., Arlington Heights, Illinois 60004, USA.
FAU - Neuefeind, J C
AU  - Neuefeind JC
AD  - Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
FAU - Carruth, J
AU  - Carruth J
AD  - Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
FAU - Skinner, L B
AU  - Skinner LB
AD  - Materials Development, Inc., Arlington Heights, Illinois 60004, USA.
FAU - Alderman, O L G
AU  - Alderman OL
AD  - Materials Development, Inc., Arlington Heights, Illinois 60004, USA.
FAU - Benmore, C J
AU  - Benmore CJ
AD  - Argonne National Laboratory, Argonne, Illinois 60439, USA.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Rev Sci Instrum
JT  - The Review of scientific instruments
JID - 0405571
EDAT- 2015/10/03 06:00
MHDA- 2015/10/03 06:01
CRDT- 2015/10/03 06:00
PHST- 2015/10/03 06:00 [entrez]
PHST- 2015/10/03 06:00 [pubmed]
PHST- 2015/10/03 06:01 [medline]
AID - 10.1063/1.4930279 [doi]
PST - ppublish
SO  - Rev Sci Instrum. 2015 Sep;86(9):096105. doi: 10.1063/1.4930279.