Growth and Evaluation of Improved CsI:Tl and NaI:Tl Scintillators
Scintillators play an important role in radiation detection and imaging. Thallium-doped cesium iodide (CsI:Tl) and sodium iodide (NaI:Tl) are two of the major scintillators that have been used for many applications for many decades. In this paper, we will present an improved scintillation performanc...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/11/1517 |
| _version_ | 1797468654954086400 |
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| author | Rastgo Hawrami Elsa Ariesanti Abi Farsoni Diane Szydel Hamid Sabet |
| author_facet | Rastgo Hawrami Elsa Ariesanti Abi Farsoni Diane Szydel Hamid Sabet |
| author_sort | Rastgo Hawrami |
| collection | DOAJ |
| description | Scintillators play an important role in radiation detection and imaging. Thallium-doped cesium iodide (CsI:Tl) and sodium iodide (NaI:Tl) are two of the major scintillators that have been used for many applications for many decades. In this paper, we will present an improved scintillation performance of Bridgman method-grown CsI(Tl) and NaI(Tl) crystals developed by Xtallized Intelligence, Inc. (XI, Inc.), and we will compare the performance with commercially available CsI:Tl and NaI:Tl. In a preliminary testing using MicroFJ−60035−TSV silicon photomultipliers (ON Semiconductor), the newly developed and improved 12.5 × 12.5 × 6 mm<sup>3</sup> CsI:Tl crystal has shown an energy resolution of 4.8% (FWHM) at 662 keV, compared to 7.2% obtained by a commercially available CsI:Tl with a size of 12.5 × 12.5 × 25 mm<sup>3</sup>. The energy resolution of 5.4% (FWHM) at 662 keV is obtained for the newly improved NaI:Tl crystal, compared to 7% obtained by a commercially available ∅1″ × 1″ NaI(Tl). The comparison of the photo peak channel locations shows that the improvements in both CsI:Tl and NaI:Tl, developed by XI, Inc., have produced much larger signal amplitudes (roughly double), when compared to the commercially available CsI(Tl) and NaI:Tl. Improved decay time constants are presented as well. |
| first_indexed | 2024-03-09T19:10:30Z |
| format | Article |
| id | doaj.art-8ec3c9305b8449c2ae2e0867f4fe7755 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T19:10:30Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-8ec3c9305b8449c2ae2e0867f4fe77552023-11-24T04:14:25ZengMDPI AGCrystals2073-43522022-10-011211151710.3390/cryst12111517Growth and Evaluation of Improved CsI:Tl and NaI:Tl ScintillatorsRastgo Hawrami0Elsa Ariesanti1Abi Farsoni2Diane Szydel3Hamid Sabet4Xtallized Intelligence, Inc., Nashville, TN 37211, USALife and Physical Sciences Department, Physics Division, Fisk University, Nashville, TN 37208, USAAvicenna Instruments, LLC, Laguna Niguel, CA 92677, USADeepwater Chemicals, Inc., Woodward, OK 73801, USAMassachusetts General Hospital—Harvard Medical School, Boston, MA 02129, USAScintillators play an important role in radiation detection and imaging. Thallium-doped cesium iodide (CsI:Tl) and sodium iodide (NaI:Tl) are two of the major scintillators that have been used for many applications for many decades. In this paper, we will present an improved scintillation performance of Bridgman method-grown CsI(Tl) and NaI(Tl) crystals developed by Xtallized Intelligence, Inc. (XI, Inc.), and we will compare the performance with commercially available CsI:Tl and NaI:Tl. In a preliminary testing using MicroFJ−60035−TSV silicon photomultipliers (ON Semiconductor), the newly developed and improved 12.5 × 12.5 × 6 mm<sup>3</sup> CsI:Tl crystal has shown an energy resolution of 4.8% (FWHM) at 662 keV, compared to 7.2% obtained by a commercially available CsI:Tl with a size of 12.5 × 12.5 × 25 mm<sup>3</sup>. The energy resolution of 5.4% (FWHM) at 662 keV is obtained for the newly improved NaI:Tl crystal, compared to 7% obtained by a commercially available ∅1″ × 1″ NaI(Tl). The comparison of the photo peak channel locations shows that the improvements in both CsI:Tl and NaI:Tl, developed by XI, Inc., have produced much larger signal amplitudes (roughly double), when compared to the commercially available CsI(Tl) and NaI:Tl. Improved decay time constants are presented as well.https://www.mdpi.com/2073-4352/12/11/1517gamma-ray detectorPMTscintillation detectorSiPMthallium-doped cesium iodide and sodium iodide |
| spellingShingle | Rastgo Hawrami Elsa Ariesanti Abi Farsoni Diane Szydel Hamid Sabet Growth and Evaluation of Improved CsI:Tl and NaI:Tl Scintillators Crystals gamma-ray detector PMT scintillation detector SiPM thallium-doped cesium iodide and sodium iodide |
| title | Growth and Evaluation of Improved CsI:Tl and NaI:Tl Scintillators |
| title_full | Growth and Evaluation of Improved CsI:Tl and NaI:Tl Scintillators |
| title_fullStr | Growth and Evaluation of Improved CsI:Tl and NaI:Tl Scintillators |
| title_full_unstemmed | Growth and Evaluation of Improved CsI:Tl and NaI:Tl Scintillators |
| title_short | Growth and Evaluation of Improved CsI:Tl and NaI:Tl Scintillators |
| title_sort | growth and evaluation of improved csi tl and nai tl scintillators |
| topic | gamma-ray detector PMT scintillation detector SiPM thallium-doped cesium iodide and sodium iodide |
| url | https://www.mdpi.com/2073-4352/12/11/1517 |
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