|Title:||A calibration methodology for the novel radioluminescence detector systems|
|Authors:||Luchkov, Maksym, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 6.3. Strahlenschutzdosimetrie, ORCID: 0000-0002-0818-3759|
|Contributors:||HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887|
|Resource Type:||Dataset / Measurement Data|
|Publisher:||Physikalisch-Technische Bundesanstalt (PTB)|
CC-BY 4.0 International
|Relationships:||References: DOI 10.7795/EMPIR.19ENV02.PA.20231027|
|Classifications:||INSPEC A2940M Scintillation detectors, scintillators and photomultipliers ; INSPEC B7420 Particle and radiation detection and measurement|
2.20 MB (2308166 Bytes)
MD5 Checksum: ea13eb6bbaa848e33f19571b42a02005
SHA256 Checksum: 702f20dcafa05a5d3244c4c4f5fa0770b4d7937c3eb51530474d88edc3b6d07e
|Keywords:||alpha-particle sources ; alpha-particle detection ; luminescence of gases ; ultraviolet sources ; ultraviolet detectors ; radioisotope imaging, molecular visible and ultraviolet spectra|
|Abstract:||The files contain the data relevant to the calibration of radioluminescence systems and presented in the corresponding article, including the spectra of the alpha and optical standards, calibration curves, and radioluminescence images. For scanning measurements, the photon count rate is reported for each pixel of the image where each pixel designates the particular detector orientation (pitch, yaw) set by goniometer stages.|
|Other:||The project 19ENV02 RemoteALPHA has received funding from the EMPIR programme co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme.|
|Remark:||description of the individual files:
- block: Calibration curves
research object: Calibrating optical standards in terms of the spectral radiance and radioisotope activity correspondence
method: The spectral radiance of the optical standards has been quantified at the PTB Spectral Radiance Comparator Facility. The activity of the alpha standard has been quantified using the defined angle alpha spectrometry as the alpha-activity national standard. The activity-radiance correspondence has been established using the reference UV fused silica radioluminescence detector as a transfer standard.
- block: Spectral radiance
research object: Spectral radiance of the LED-based low photon flux UV radiance standards
method: The spectral radiance of the optical standards has been quantified at the PTB Spectral Radiance Comparator Facility.
- block: Scanning measurements / images
research object: Imaging of alpha-emitting sources using radioluminescence
method: The UV images of alpha sources are taken in the dark with the optical scanning system from the distance of 2 m. The color image, onto which the UV image is superimposed, is taken separately in the well-lit environment with the Intel RealSense D435 depth camera. The acquisition system consisting of a lens-based UV detector and two goniometric stages controlling the pitch and the yaw of the detector. The acquisition system consists of a 240 mm UV fused silica lens, optical filter assembly, photomultiplier tube, pulse counter, and readout computer. The filter and photomultiplier type are selected depending on the measured UV band (UV-A or UV-C) with the component choice specified in the header of each measurement file. The UV photon count rate (in 1/s) is logged with the Hamamatsu C8855 counter in millisecond intervals. Two Newport goniometric stages (M-BGM160PE - pitch, RVS80CC - yaw) are controlled with Newport SMC100 controllers. Finally, two data streams - count rate and detector orientation - are synchronized to produce the UV image where each pixel is characterized by a (pitch, yaw, count rate) vector.
format: .dat, .jpg
- block: Alpha source spectra
research object: Energy spectra of developed alpha activity standard measured at different emission angles
method: The measurand is quantified using the defined solid angle alpha spectrometry.
|Funding:||European Commission (EC), ISNI: 0000 0001 2162 673X, Grant Title: Remote and real-time detection of alpha-emmitting radionuclides in the environment, Grant Number: EMPIR 19ENV02 RemoteALPHA|