scholarly journals A Neutron Spectrometer with a Two-dimensional Detector for Time-resolved Studies

1985 ◽  
Vol 38 (3) ◽  
pp. 337 ◽  
Author(s):  
BP Schoenborn ◽  
AM Saxena ◽  
M Stamm ◽  
G Dimmler ◽  
V Radeka
Keyword(s):  
Dynamical Systems ◽  
Data Collection ◽  
Conformational Changes ◽  
Diffraction Data ◽  
Structural Organization ◽  
Two Dimensional ◽  
Sensitive Detector ◽  
Neutron Spectrometer ◽  
Time Resolved ◽  
Position Sensitive

An intermediate resolution neutron spectrometer for collecting diffraction data with the range Q = 0�01-3�0 � has been built for analysing the structural organization of membranes, polymers and other molecular aggregates. This spectrometer has a position-sensitive detector with a capability for time-resolved data collection which may be used to study conformational changes in dynamical systems. A double multilayer monochromator assembly is used to monochromate neutrons. Operating wavelehgths of the spectrometer will be from 2 to 5 �, and the wavelength bandwidth (??/?) can be adjusted within the 1%-8% range.

scholarly journals The finer things in X-ray diffraction data collection

1999 ◽  
Vol 55 (10) ◽  
pp. 1718-1725 ◽  
Author(s):  
J. W. Pflugrath
Keyword(s):  
Data Collection ◽  
Diffraction Data ◽  
Rotation Angle ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Software Suite ◽  
X Ray ◽  
Position Sensitive ◽  
X Ray Background ◽  
Position Sensitive Detectors

X-ray diffraction images from two-dimensional position-sensitive detectors can be characterized as thick or thin, depending on whether the rotation-angle increment per image is greater than or less than the crystal mosaicity, respectively. The expectations and consequences of the processing of thick and thin images in terms of spatial overlap, saturated pixels, X-ray background andI/σ(I) are discussed. Thed*TREKsoftware suite for processing diffraction images is briefly introduced, and results fromd*TREKare compared with those from another popular package.

Use of a Two-Dimensional, Position Sensitive Detector for Collecting Pole Figures

1992 ◽  
Vol 36 ◽  
pp. 641-647 ◽  
Author(s):  
Kingsley L. Smith ◽  
Richard B. Ortega
Keyword(s):  
Data Collection ◽  
Pole Figure ◽  
Computer Control ◽  
Two Dimensional ◽  
Sensitive Detector ◽  
Area Detector ◽  
Pole Figures ◽  
Position Sensitive ◽  
Pole Figure Data ◽  
Collection Time

Conventional pole figure instruments consist of a scintillation detector mounted on a 4-circle goniometer operating under computer control. A few instruments make use of a linear PSD detector, which allows collecting data for multiple pole figures sinmltaneously. A PSD does not reduce the required data collection time for the primary pole figure; however, it does save time by eliminating the need to recollect multiple pole figure data. By using a 2D “area” detector, one can simultaneously collect multiple pole figures and reduce the data collection time for the primary pole figure, such an area detector pole figure processing package, GADDS v2, was developed at Siemens and will be discussed.

Research and Design of Laser Displacement Measurement Based on the PSD

2015 ◽  
Vol 719-720 ◽  
pp. 580-583
Author(s):  
Xin Wen Duan ◽  
Ye Sun
Keyword(s):  
Signal Processing ◽  
Output Signal ◽  
Position Sensitive Detector ◽  
Measuring System ◽  
Two Dimensional ◽  
Sensitive Detector ◽  
Position Measurement ◽  
Arithmetic Circuit ◽  
Position Information ◽  
Position Sensitive

This paper introduces a kind of measuring system based on two-dimensional position sensitive detector PSD and single-chip signal processing, and have discussed the key technology. Two-dimensional position sensitive detector (2 D-PSD) is a kind of testing device of light spot position information and the output signal is a kind of current signal related to the location information. PSD output signal processing circuits are usually made by the I/V conversion circuit ,the addition, the subtraction and division arithmetic circuit. System can quickly, accurately and easily realize the position measurement, with a simple implementation, low power consumption, fast response, etc, It can be applied to many remote laser center positioning measurement and general industrial control occasions.

High-Time Resolved Two-Dimensional Tetra-Lateral Position-Sensitive Silicon Photomultiplier

2018 ◽  
Vol 39 (2) ◽  
pp. 232-235 ◽  
Author(s):  
Tianqi Zhao ◽  
Yu Peng ◽  
Baicheng Li ◽  
Ran He ◽  
Kun Liang ◽  
...  
Keyword(s):  
Lateral Position ◽  
High Time ◽  
Two Dimensional ◽  
Silicon Photomultiplier ◽  
Time Resolved ◽  
Position Sensitive

Attitude measurement and simulation of two-dimensional position sensitive detector

Optik ◽  
2019 ◽  
Vol 184 ◽  
pp. 399-411
Author(s):  
Fan Zhang ◽  
Jin Liu ◽  
Haima Yang ◽  
Haishan Liu ◽  
Yuan Chen ◽  
...  
Keyword(s):  
Position Sensitive Detector ◽  
Attitude Measurement ◽  
Two Dimensional ◽  
Sensitive Detector ◽  
Position Sensitive

scholarly journals A multicrystal diffraction data-collection approach for studying structural dynamics with millisecond temporal resolution

IUCrJ ◽  
2016 ◽  
Vol 3 (6) ◽  
pp. 393-401 ◽  
Author(s):  
Robin Schubert ◽  
Svetlana Kapis ◽  
Yannig Gicquel ◽  
Gleb Bourenkov ◽  
Thomas R. Schneider ◽  
...  
Keyword(s):  
Data Collection ◽  
Radiation Damage ◽  
Temporal Resolution ◽  
Diffraction Data ◽  
Structural Changes ◽  
Structural Information ◽  
Data Sets ◽  
Enzymatic Reactions ◽  
Time Resolved ◽  
Site Specific

Many biochemical processes take place on timescales ranging from femtoseconds to seconds. Accordingly, any time-resolved experiment must be matched to the speed of the structural changes of interest. Therefore, the timescale of interest defines the requirements of the X-ray source, instrumentation and data-collection strategy. In this study, a minimalistic approach forin situcrystallization is presented that requires only a few microlitres of sample solution containing a few hundred crystals. It is demonstrated that complete diffraction data sets, merged from multiple crystals, can be recorded within only a few minutes of beamtime and allow high-resolution structural information of high quality to be obtained with a temporal resolution of 40 ms. Global and site-specific radiation damage can be avoided by limiting the maximal dose per crystal to 400 kGy. Moreover, analysis of the data collected at higher doses allows the time-resolved observation of site-specific radiation damage. Therefore, our approach is well suited to observe structural changes and possibly enzymatic reactions in the low-millisecond regime.

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