SwePub
Sök i LIBRIS databas

  Utökad sökning

WFRF:(Bennati Paolo)
 

Sökning: WFRF:(Bennati Paolo) > A study of response...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003304naa a2200433 4500
001oai:DiVA.org:kth-170208
003SwePub
008150629s2015 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1702082 URI
0247 a https://doi.org/10.1016/j.nima.2015.05.0332 DOI
040 a (SwePub)kth
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Pani, R.4 aut
2451 0a A study of response of a LuYAP :b Ce array with innovative assembling for PET
264 1b Elsevier BV,c 2015
338 a print2 rdacarrier
500 a QC 20150630
520 a We propose the characterization of a first array of 10×10 Lutetium Yttrium Orthoaluminate Perovskite (LuYAP:Ce) crystals, 2 mm×2 mm×10 mm pixel size, with an innovative assembling designed to enhance light output, uniformity and detection efficiency. The innovation consists of the use of 0.015 mm thick dielectric coating as inter-pixel light-insulators, manufactured by Crytur (Czech Republic) intended to improve crystal insulation and then light collection. Respect to the traditional treatment with 0.2 mm of white epoxy, a thinner pixel gap enhances packing fraction up to 98% with a consequent improvement of detection efficiency. Spectroscopic characterization of the array was performed by a Hamamatsu R6231 photomultiplier tube. A pixel-by-pixel scanning with a collimated 99mTc radioisotope (140 keV photon energy) highlighted a deviation in pulse height close to 3.5% respect to the overall mean value. Meanwhile, in term of energy resolution a difference between the response of single pixel and the array of about 10% was measured. Results were also supported and validated by Monte Carlo simulations performed with GEANT4. Although the dielectric coating pixel insulator cannot overcome the inherent limitations of LuYAP crystal due to its self-absorption of light (still present), this study demonstrated that the new coating treatment allows better light collection (nearly close to the expected one) with in addition a very good uniformity between different pixels. These results confirm the high potentiality of this coating for any other crystal array suited for imaging application and new expectations for the use of LuYAP for PET systems.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Annan medicin och hälsovetenskap0 (SwePub)3052 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Other Medical and Health Sciences0 (SwePub)3052 hsv//eng
653 a Gamma detector
653 a PET detector
653 a Scintillation array
7001 a Cinti, M. N.4 aut
7001 a Scafè, R.4 aut
7001 a Bennati, Paolou KTH,Medicinsk teknik4 aut0 (Swepub:kth)u1ua4ia4
7001 a Lo Meo, S.4 aut
7001 a Preziosi, E.4 aut
7001 a Pellegrini, R.4 aut
7001 a De Vincentis, G.4 aut
7001 a Sacco, D.4 aut
7001 a Fabbri, A.4 aut
7102 a KTHb Medicinsk teknik4 org
7730 t Nuclear Instruments and Methods in Physics Research Section Ad : Elsevier BVg 795, s. 82-87q 795<82-87x 0168-9002x 1872-9576
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170208
8564 8u https://doi.org/10.1016/j.nima.2015.05.033

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy