X-radiograph(s) of "Thomas Hancock (1703-1764)"

Identification and Creation

Object Number: Straus.8836
People: Artist of original: John Singleton Copley, American (Boston, MA 1738 - 1815 London, England)
Title: X-radiograph(s) of "Thomas Hancock (1703-1764)"
Classification: Photographs
Work Type: photograph, x-radiograph
Date: July 5, 2015
Persistent Link: https://hvrd.art/o/354364

Credit Line: Harvard Art Museums/Straus Center for Conservation and Technical Studies, Alan Burroughs Collection of X-Radiographs
Object Number: Straus.8836
Contact: am_straus@harvard.edu
Permissions: The Harvard Art Museums encourage the use of images found on this website for personal, noncommercial use, including educational and scholarly purposes. To request a higher resolution file of this image, please submit an online request.

Description: X-radiograph Operators present: Kate Smith, Teri Hensick

Duration of radiography session: 3

Total number of exposures: 12

Material Description – oil on wax-lined canvas

Radiation source- Comet tube

Exposure settings-
40 kV
5 mA
60 seconds
458 cm focal distance

Filtration used: none

Screens used: none

Set up/sequencing notes:

Scanning notes: laser power high, PMT 10, 12-bit logarithmic data scale, 50 micron scan resolution

Image manipulation notes: DCM files converted to TIFF, assembled into composite in Photoshop

Teri Hensick and Kate Smith, Copley's Working Practice, The Philosophy Chamber: Art in Science in Harvard’s Teaching Cabinet 1766-1820, ed. Ethan Lasser, Harvard Art Museum (Cambridge, Massachusetts, 2017), Pages 224-235, Figure 1, Page 226; Figure 2, Page 226; Figure 3, Page 226; Figure 4, Page 227; Figure 6, Page 228; Figure 7, Page 229; Figure 8, Page 229; Figure 9, Page 230; Figure 13, Page 233