Wearable Spectroradiometer for Dosimetry

Details

• Personal Author:
  Chmielinski MJ ; Cohen MA ; Simpson CD ; Yost MG
• Description:
  Available wearable dosimeters suffer from spectral mismatch during the measurement of broadband UV and visible radiation in environments that receive radiation from multiple sources emitting differing spectra. We observed this type of multi-spectra environment in all five Washington State cannabis farms visited during a field study investigating worker exposure to ultraviolet radiation in 2018. Spectroradiometers do not suffer from spectral mismatch in these environments, however, an extensive literature review conducted at the time of writing did not identify any spectroradiometers that were directly deployable as wearable dosimetry devices. To close this research gap, we developed a microcontroller system and platform that allows for researchers to mount and deploy the Ocean Insight Flame-S Spectroradiometer as a wearable device for measurement of UV and visible wavelengths (300 to 700 nm). The platform validation consisted of comparing measurements taken under platform control with measurements taken with the spectrometer controlled by a personal computer running the software provided by the spectroradiometer manufacturer. Three Mann-Whitney U-Tests (two-tailed, 95% CI), one for each intensity condition, compared the central tendency between the total spectral power (TSP), the integral of a spectrum measurement, measured under both control schemas. An additional analysis of per pixel agreement and overall platform stability was performed. The three Mann-Whitney tests returned no significant difference between the set of TSPs for each filter condition. These results suggest that the spectroradiometer takes measurements of equivalent accuracy under both control schemas, and can be deployed as a wearable device for the measurement of wavelength resolved UV and visible radiation. [Description provided by NIOSH]
• Subjects:
  Environmental Monitoring Occupational Health Quality Control Radiation Dosimeters Safety
• Keywords:
  Author Keywords: Sensor Applications Dosimetry Environmental Monitoring Performance Tests Quality Control Sensors Ultraviolet Radiation Wearable Technologies
• ISSN:
  1424-8220
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  22
• Issue:
  22
• NIOSHTIC Number:
  nn:20066452
• Citation:
  Sensors 2022 Nov; 22(22):8829
• Contact Point Address:
  Christopher D. Simpson, Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA 98105, USA
• Email:
  simpson1@uw.edu
• Federal Fiscal Year:
  2023
• Performing Organization:
  University of Washington
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Sensors
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:bbb3a57dbe0860d14bd463c67d9f878e25372c85cd81d2b2759abb7e38bf210d133e6476539bf2cc8180b0805267015e08d74e67f37ca90bdb4e82f957151e3a
• Download URL:
  https://stacks.cdc.gov/view/cdc/231090/cdc_231090_DS1.pdf
• File Type:
  [PDF - 2.85 MB ]