TY - JOUR
T1 - Time-of-flight implementation of an ultra-small-angle neutron scattering instrument
AU - Carpenter, J. M.
AU - Agamalian, M.
AU - Littrel, K. C.
AU - Thiyagarajan, P.
AU - Rehm, Ch
PY - 2003
Y1 - 2003
N2 - We report calculations describing the Bonse-Hart ultra-small-angle neutron scattering (USANS) instrument with triple-bounce Si channel-cut crystals, which show that significant gains in Q-resolution and neutron flux can be achieved using multiple high-order Bragg reflections. These reflections become usable only after combining the Bonse-Hart and time-of-flight (t-o-f) techniques, thus this variant of the USANS camera needs a pulsed neutron source. We demonstrate that t-o-f USANS instruments installed, for example, at the SNS water moderator will improve the current state of the art. Through the use of multiple wavelengths, these will provide means to detect multiple scattering effects.
AB - We report calculations describing the Bonse-Hart ultra-small-angle neutron scattering (USANS) instrument with triple-bounce Si channel-cut crystals, which show that significant gains in Q-resolution and neutron flux can be achieved using multiple high-order Bragg reflections. These reflections become usable only after combining the Bonse-Hart and time-of-flight (t-o-f) techniques, thus this variant of the USANS camera needs a pulsed neutron source. We demonstrate that t-o-f USANS instruments installed, for example, at the SNS water moderator will improve the current state of the art. Through the use of multiple wavelengths, these will provide means to detect multiple scattering effects.
KW - Bonse-Hart technique
KW - Pulsed neutron sources
KW - Time-of-flight
KW - Ultra-small-angle neutron scattering
UR - http://www.scopus.com/inward/record.url?scp=0038377598&partnerID=8YFLogxK
U2 - 10.1107/S0021889803003960
DO - 10.1107/S0021889803003960
M3 - Article
AN - SCOPUS:0038377598
SN - 0021-8898
VL - 36
SP - 763
EP - 768
JO - Journal of Applied Crystallography
JF - Journal of Applied Crystallography
IS - 3 I
ER -