國立虎尾科技大學 |

Radiation Source Localization Using the Red-Pitaya STEMLab Data Acquisition System.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Radiation Source Localization Using the Red-Pitaya STEMLab Data Acquisition System./
作者:	Bruff, Taylor Lawrence.
面頁冊數:	1 online resource (86 pages)
附註:	Source: Masters Abstracts International, Volume: 84-03.
Contained By:	Masters Abstracts International84-03.
標題:	Information science. -
電子資源:	click for full text (PQDT)
ISBN:	9798845462510

Radiation Source Localization Using the Red-Pitaya STEMLab Data Acquisition System.
Bruff, Taylor Lawrence.

Radiation Source Localization Using the Red-Pitaya STEMLab Data Acquisition System. - 1 online resource (86 pages)

Source: Masters Abstracts International, Volume: 84-03.

Thesis (M.Sc.)--North Carolina State University, 2022.

Includes bibliographical references

This thesis evaluates an approach to radiation source localization using a small modular data acquisition system to record radiation, position, orientation, and atmospheric data. A Red-Pitaya STEMLab 125-14 system-on-a-chip (SoC) was used to record and analyze pulse height spectra and count rates from a 2" x 4" x 16" NaI(Tl) detector at various rotation angles with respect to a fixed but unknown source location. Three small and inexpensive integrated circuit sensors were used to provide peripheral GPS, atmospheric, and orientation data to localize the radiation source.The simple source localization technique evaluated in this research uses the point of intersection between two lines (direction of maximum recorded count rate from different detector locations) to estimate the location of a radioactive source. This method relies on the characterization of count rates recorded by an anisotropic rectangular detector across a series of rotation angles proportional to the solid angle of the larger detector face. The estimated source direction is the angle at which the largest surface area of the detector is exposed to the source and the highest count rate is recorded. With two or more detectors and the estimated source direction projected from each, the source location is estimated as the point where these two lines intersect.A validation experiment was conducted using a 20µCi Cs-137 source in a 30 m2 search area. With count rates recorded from -90° to to +90° relative rotation angles at two or more detector locations, the source location was estimated to an accuracy of 0.25 meters within an area of uncertainty of 0.32 m2 . These results show that the system and methodology is adequate for localizing an unknown radiation source in a small search area.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798845462510Subjects--Topical Terms:

561178
Information science.
Index Terms--Genre/Form:

554714
Electronic books.

Radiation Source Localization Using the Red-Pitaya STEMLab Data Acquisition System.
LDR:03004ntm a22003377 4500 001 1147232
005 20240909100731.5
006 m o d
007 cr bn ---uuuuu
008 250605s2022 xx obm 000 0 eng d
020 $a 9798845462510
035 $a (MiAaPQ)AAI29289746
035 $a (MiAaPQ)NCState_Univ18402039663
035 $a AAI29289746
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Bruff, Taylor Lawrence. $3 1472904
245 1 0 $a Radiation Source Localization Using the Red-Pitaya STEMLab Data Acquisition System.
264 0 $c 2022
300 $a 1 online resource (86 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Masters Abstracts International, Volume: 84-03.
500 $a Advisor: Mattingly, John.
502 $a Thesis (M.Sc.)--North Carolina State University, 2022.
504 $a Includes bibliographical references
520 $a This thesis evaluates an approach to radiation source localization using a small modular data acquisition system to record radiation, position, orientation, and atmospheric data. A Red-Pitaya STEMLab 125-14 system-on-a-chip (SoC) was used to record and analyze pulse height spectra and count rates from a 2" x 4" x 16" NaI(Tl) detector at various rotation angles with respect to a fixed but unknown source location. Three small and inexpensive integrated circuit sensors were used to provide peripheral GPS, atmospheric, and orientation data to localize the radiation source.The simple source localization technique evaluated in this research uses the point of intersection between two lines (direction of maximum recorded count rate from different detector locations) to estimate the location of a radioactive source. This method relies on the characterization of count rates recorded by an anisotropic rectangular detector across a series of rotation angles proportional to the solid angle of the larger detector face. The estimated source direction is the angle at which the largest surface area of the detector is exposed to the source and the highest count rate is recorded. With two or more detectors and the estimated source direction projected from each, the source location is estimated as the point where these two lines intersect.A validation experiment was conducted using a 20µCi Cs-137 source in a 30 m2 search area. With count rates recorded from -90° to to +90° relative rotation angles at two or more detector locations, the source location was estimated to an accuracy of 0.25 meters within an area of uncertainty of 0.32 m2 . These results show that the system and methodology is adequate for localizing an unknown radiation source in a small search area.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Information science. $3 561178
650 4 $a Computer science. $3 573171
650 4 $a Data acquisition systems. $3 1469272
650 4 $a Parameter estimation. $3 579804
650 4 $a Sensors. $3 1003702
650 4 $a Calibration. $3 1027585
650 4 $a Radiation. $3 673044
650 4 $a Localization. $3 1091696
650 4 $a Algorithms. $3 527865
655 7 $a Electronic books. $2 local $3 554714
690 $a 0984
690 $a 0723
710 2 $a North Carolina State University. $3 845424
710 2 $a ProQuest Information and Learning Co. $3 1178819
773 0 $t Masters Abstracts International $g 84-03.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29289746 $z click for full text (PQDT)