DOI: 10.25592/uhhfdm.16628
title: Material Characterisation of 19–20th century manuscripts from Northern Thailand

description: This is the dataset generated from the analysis of four Thai manuscripts  at CSMC.

The results have been published in the research article 'Sathiyamani S, Ngiam S, Bonnerot O, Jaengsawang S, Panarut P, Helman-Wazny A, Colini C. Material Characterisation of 19–20th Century Manuscripts from Northern Thailand. <em>Restaurator. International Journal for the Preservation of Library and Archival Material</em>. 2024;45(2-3): 117-140. https://doi.org/10.1515/res-2023-0028'

<strong>The dataset includes:</strong>

<strong>01_protocol: </strong>Protocol of the analysis featuring spots measured using various techniques

<strong>02_Dino: </strong>Digital microscopy images of the four manuscripts, present under the respective sub-folders as .bmp file

<strong>03_Elio: </strong>Point analysis was carried out using Bruker / XG Lab Elio with a Rh X-ray tube, a 25 mm<sup>2</sup> large-area silicon drift detector (SDD) with an interaction spot of 1 mm. The measurements were conducted at 40 kV voltage, 80 μA current, with a measurement time of 120 s per spot. dataset includes subfolders featuring<strong> </strong>individual spectra as spx and txt files. The integrated intensities for the evaluated XRF data is given as the corresponding excel file

<strong>04_ARTAX:</strong> Acquired using Bruker ARTAX with a Mo X-ray tube, polycapillary X-ray optics, an electrothermally cooled Xflash SDD detector, and an interaction spot of 100 μm. XRF dataset from lines scans are present in subfolders as RTX file. The integrated intensities and the results from the line scans were exported as the corresponding excel file

<strong>05_JET: </strong>Spatial maps were obtained using Bruker M6 Jetstream with a Rh X-ray tube, polycapillary X-ray optics, a 50 mm<sup>2</sup> Xflash SDD detector, and an adjustable measuring spot ranging from 50 to 650 µm. The measurements were conducted at 50 kV voltage and 600 μA current, with a spot size of 50µm, an acquisition time 30 ms per spot and a step size of 50 μm.The results from M6 Jetstream, corresponding to spatial maps, are present in the respective subfolders, as raw bcf file, processed bcf file and processed rpl file; the corresponding results have been exported as jpg images under relative and absolute intensities.

<strong>06_FTIR: </strong>FTIR measurements were carried out using portable Agilent 4100 ExoScan FT-IR spectrometer using Diffuse reflectance (DRIFTS) mode with a measuring spot of 1 cm, spectral range 650–4000 cm<sup>-1</sup>, 256 scans per measurement and a resolution of 4 cm<sup>-1</sup>. The raw data is uploaded as individual spc files, and the combined data is present in the excel file.

<strong>07_NIR: </strong>NIR measurements were carried out<strong> </strong>using Malvern-Panalytical Analytical Spectral Devices (ASD) LabSpec 4 Hi-Res spectrophotometer, measuring the reflectance spectrum in the range 350–2500 nm with a scanning time of 100 ms. The first derivative of the spectrum was used for the characterization of the pigments. The raw data is present as txt files.

<strong>08_Raman</strong>: Raman measurements were carried out using a Renishaw inVia Raman spectrometer equipped with a 100 mW 532 nm laser and a 300 mW 785 nm laser and with a 100x objective. The raw spectra are present in the respective subfolders as txt files. 

<strong>09_IRR: </strong>APOLLO Infrared Reflectography Imaging System (IRR) from OPUS Instruments with a Long Wave Pass Filter (LWP1510, range 1510–1700 nm) and two 20W halogen lamps as light sources to image a section of manuscript Thai Ms 7, image is provided as a jpg.

<strong>10_results:</strong> This file provides information about all the datasets, including a summary of results obtained using the different techniques.

<strong>11_plots: </strong>The origin file corresponding to the FTIR, NIR and Raman plots, as opj.
description: The research for this project was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany´s Excellence Strategy – EXC 2176 'Understanding Written Artefacts: Material, Interaction and Transmission in Manuscript Cultures', project no. 390893796. The research was conducted within the scope of the Centre for the Study of Manuscript Cultures (CSMC) at Universität Hamburg.