Epidote - Sample 1 NanED Round Robin, Data: ESR4 & ESR5

Epidote

The following submission contains the data collection and processing of datasets for the sample epidote under the NanEd round-robin project.  A single crystal was identified, and continuous rotation and precession data acquisition techniques were used to collect datasets on the same crystal.  All the data sets were processed with PETS2 software. The table below summarizes the data collection parameters for the data sets. The following data is also included as a text file in the data folder.

Continuous Rotation:

General information:

Project

NanED (www.naned.eu)

ESR Project

ESR4 & ESR5 - Round Robin

Project Label

RR1

Sample Label

RR1-S1_PISA

Data set Label

RR1-S1_PISA-CROT

Instrumental:

Instrument

Transmission electron microscope FEI Tecnai G2 20

Radiation source

LaB6

Accelerating voltage

200 kV

Wavelength

0.0251 Å

Probe Type

Microdiffraction

Beam Diameter

900nm

Beam Convergence

Parallel beam, convergence <0.1mrad

Detector

Hybrid pixel detector ASI Cheetah (side mounted)

Number of pixels in the image

512 x 512

Pixel size

55 µm x 55 µm

Effective camera length

1200 mm

Calibration constant

0.006895 Å-1/pixel

Sample description:

Name

Epidote

Chemical composition

Ca2FexAl3-xSi3O13H

Sample source

Natural source from Val d'Ossola, Italy

Sample preparation

Powder crushed in an agate mortar and deposited on a Cu grid with holey C film

Experimental:

Data Type

Electron diffraction data - 3D ED

Data collection method

Continuous Rotation

Temperature (K) used during data collection

293 K

Number of crystals contributing to the data set

1

Number of experimental frames

240

tilt range, tilt step, tilt per frame

-60° to +60°, 0.5°, 0.5°

Exposure time per frame

709ms

Software:

Software used for the data collection

RATS software

Software used for processing

PETS2 (ver 2.2.20220701.0941)

Authorship and bibliography

Author(s) of the data

Hrushikesh Chintakindi (ESR4) & Ashwin Suresh (ESR5)

Related data

Publication(s)

Files and data formats

Image folder

dpCROT : Folder containing images of the diffraction pattern from each frames.

Image format

tiff_16bit

Additional folders/files

Crystal_image : image of the crystal

S1_04c-crot-050_petsdata : Log files of PETS2 processing

S1_04c-crot-050.pts2 :_input file for the program PETS2 used for processing  the data

Notes:

The software, RATS used for data collection is an in-house software developed in FZU, Praha.

*Project Label "RR1" stands for Round Robin 1

*Data set label "RR1-S1_PISA-CROT" stands for Round Robin 1 sample 1 from Pisa,  data collection method Continuous Rotation.

*The additional files can be found in the folder:

Continuous_rotation\Data_collection_processing

Precession:

General information:

Project

NanED (www.naned.eu)

ESR Project

ESR4 & ESR5 - Round Robin

Project Label

RR1

Sample Label

RR1-S1_PISA

Data set Label

RR1-S1_PISA-PREC

Instrumental:

Instrument

Transmission electron microscope FEI Tecnai G2 20

Radiation source

LaB6

Accelerating voltage

200 kV

Wavelength

0.0251 Å

Probe Type

Microdiffraction

Beam Diameter

900nm

Beam Convergence

Parallel beam, convergence <0.1mrad

Detector

Hybrid pixel detector ASI Cheetah (side mounted)

Number of pixels in the image

512 x 512

Pixel size

55 µm x 55 µm

Effective camera length

1200 mm

Calibration constant

0.006895 Å-1/pixel

Sample description:

Name

Epidote

Chemical composition

Ca2FexAl3-xSi3O13H

Sample source

Natural source from Val d'Ossola, Italy

Sample preparation

Powder crushed in an agate mortar and deposited on a Cu grid with holey C film

Experimental:

Data Type

Electron diffraction data - 3D ED

Data collection method

Precession

Temperature (K) used during data collection

293 K

Number of crystals contributing to the data set

1

Number of experimental frames

121

tilt range, tilt step, tilt per frame

-60° to +60°, 1°, 0°

Precession angle

1°

Exposure time per frame

700ms

Software:

Software used for the data collection

RATS software

Software used for processing

PETS2 (ver 2.2.20220701.0941)

Authorship and bibliography

Author(s) of the data

Hrushikesh Chintakindi (ESR4) & Ashwin Suresh (ESR5)

Related data

Publication(s)

Files and data formats

Image folder

dp100 : Folder containing images of the diffraction pattern from each frames.

Image format

tiff_16bit

Additional folders/files

Crystal_image : image of the crystal

S1_04p-100_petsdata : Log files of PETS2 processing

S1_04p-100.pts2 : input file for the program PETS2 used for processing  the data

Notes:

The software, RATS used for data collection is an in-house software developed in FZU, Praha.

*Project Label "RR1" stands for Round Robin 1

*Data set label "RR1-S1_PISA-PREC" stands for Round Robin 1 sample 1 from Pisa, data collection method Precession.

*The additional files can be found in the folder:

Precession\Data_collection_processing