The LSC Triathler for acceptance control of unknown samples in a white lab

Valérie Willems; Liesel Sneyers

The LSC Triathler for acceptance control of unknown samples in a white lab

Research output

Abstract

At the EME lab from SCK.CEN the safety of the lab technicians come first, they analyze samples some of which have unknown properties and possibly high levels of radiation. The LSC Triathler is examined to provide part of this safety by performing an initial control for alpha and beta radiation. ³H and 14C are used as beta sources and 241Am as an alpha source in the experiments. For sample control, the LSC Quantulus 1 is used. The linearity of the Triathler is examined with increasing amounts of activity in the samples as well as a reliability test for measurements taken one after the other. A clear linearity is proven for the beta sources, the alpha source showed no meaningful results indicating a problem. For the replicability, the 14C showed a more constant result than the low beta energy ³H. Because of these results, the Triathler should not be used for the acceptance control at this moment. The problems with the alpha measurements have to be solved. The measurements for the beta sources do show positive signs that in the future this device could be used for at least some of the acceptance control.

Original language	English
Qualification	Other
Awarding Institution	KU Leuven
Supervisors/Advisors	Sneyers, Liesel, SCK CEN Mentor Schreurs, Sonja, Supervisor, External person
Date of Award	23 May 2023
State	Published - 21 May 2023

Cite this

@phdthesis{8363ac79bb144e74950887a7298293ec,

title = "The LSC Triathler for acceptance control of unknown samples in a white lab",

abstract = "At the EME lab from SCK.CEN the safety of the lab technicians come first, they analyze samples some of which have unknown properties and possibly high levels of radiation. The LSC Triathler is examined to provide part of this safety by performing an initial control for alpha and beta radiation. ³H and 14C are used as beta sources and 241Am as an alpha source in the experiments. For sample control, the LSC Quantulus 1 is used. The linearity of the Triathler is examined with increasing amounts of activity in the samples as well as a reliability test for measurements taken one after the other. A clear linearity is proven for the beta sources, the alpha source showed no meaningful results indicating a problem. For the replicability, the 14C showed a more constant result than the low beta energy ³H. Because of these results, the Triathler should not be used for the acceptance control at this moment. The problems with the alpha measurements have to be solved. The measurements for the beta sources do show positive signs that in the future this device could be used for at least some of the acceptance control. ",

keywords = "Alpha and beta radiation, White lab, Unknown sources, The Triathler, Portable liquid scintillation counter",

author = "Val{\'e}rie Willems and Liesel Sneyers",

note = "Score=N/A",

year = "2023",

month = may,

day = "21",

language = "English",

type = "Academic Bachelor's thesis",

school = "KU Leuven",

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TY - THES

T1 - The LSC Triathler for acceptance control of unknown samples in a white lab

AU - Willems, Valérie

A2 - Sneyers, Liesel

N1 - Score=N/A

PY - 2023/5/21

Y1 - 2023/5/21

N2 - At the EME lab from SCK.CEN the safety of the lab technicians come first, they analyze samples some of which have unknown properties and possibly high levels of radiation. The LSC Triathler is examined to provide part of this safety by performing an initial control for alpha and beta radiation. ³H and 14C are used as beta sources and 241Am as an alpha source in the experiments. For sample control, the LSC Quantulus 1 is used. The linearity of the Triathler is examined with increasing amounts of activity in the samples as well as a reliability test for measurements taken one after the other. A clear linearity is proven for the beta sources, the alpha source showed no meaningful results indicating a problem. For the replicability, the 14C showed a more constant result than the low beta energy ³H. Because of these results, the Triathler should not be used for the acceptance control at this moment. The problems with the alpha measurements have to be solved. The measurements for the beta sources do show positive signs that in the future this device could be used for at least some of the acceptance control.

AB - At the EME lab from SCK.CEN the safety of the lab technicians come first, they analyze samples some of which have unknown properties and possibly high levels of radiation. The LSC Triathler is examined to provide part of this safety by performing an initial control for alpha and beta radiation. ³H and 14C are used as beta sources and 241Am as an alpha source in the experiments. For sample control, the LSC Quantulus 1 is used. The linearity of the Triathler is examined with increasing amounts of activity in the samples as well as a reliability test for measurements taken one after the other. A clear linearity is proven for the beta sources, the alpha source showed no meaningful results indicating a problem. For the replicability, the 14C showed a more constant result than the low beta energy ³H. Because of these results, the Triathler should not be used for the acceptance control at this moment. The problems with the alpha measurements have to be solved. The measurements for the beta sources do show positive signs that in the future this device could be used for at least some of the acceptance control.

KW - Alpha and beta radiation

KW - White lab

KW - Unknown sources

KW - The Triathler

KW - Portable liquid scintillation counter

M3 - Academic Bachelor's thesis

ER -