Studies on sub-millimeter LYSO:Ce, Ce:GAGG, and a new Ce:GFAG block detector for PET using digital silicon photomultiplier

Ullah, Muhammad Nasir; Pratiwi, Eva; Park, Jin Ho; Yamamoto, Seiichi; Kamada, Kei; Yoshikawa, Akira; Yeom, Jung Yeol

doi:10.1016/j.nima.2018.09.029

Cited by 19 publications

(13 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A thin layer of aluminum, polytetrafluoroethylene (PTFE), or barium sulfate (BaSO 4 ) can be used for this purpose [28][29][30][31]. With a few lm Al, charged particles can relatively easily pass through.…”

Section: Reflective Layermentioning

confidence: 99%

“…For light with a wavelength in the range of [ 200 nm, a 20 lm layer of Al can reduce the original incoming laser intensity by more than 10 À6 times. At the same time, this layer can reflect the scintillating light with an efficiency of approximately 80%-99% [28,30], which means that the scintillating light-collecting efficiency can be almost doubled.…”

Section: Reflective Layermentioning

confidence: 99%

“…Therefore, we prefer fast response scintillators like plastic, as well as inorganic ones including LYSO (ðLuYÞ 2 SiO 5 : Ce), YAP (YAlO 3 ), YAG (Y 3 Al 5 O 3 ), and LSO (Lu 2 SiO 5 : Ce), etc. [30]. The properties of them are listed in Table 2.…”

Section: Scintillator Layermentioning

confidence: 99%

See 2 more Smart Citations

Development of gated fiber detectors for laser-induced strong electromagnetic pulse environments

Zhao

et al. 2021

NUCL SCI TECH

View full text Add to dashboard Cite

With the development of laser technologies, nuclear reactions can happen in high-temperature plasma environments induced by lasers and have attracted a lot of attention from different physical disciplines. However, studies on nuclear reactions in plasma are still limited by detecting technologies. This is mainly due to the fact that extremely high electromagnetic pulses (EMPs) can also be induced when high-intensity lasers hit targets to induce plasma, and then cause dysfunction of many types of traditional detectors. Therefore, new particle detecting technologies are highly needed. In this paper, we report a recently developed gated fiber detector which can be used in harsh EMP environments. In this prototype detector, scintillating photons are coupled by fiber and then transferred to a gated photomultiplier tube which is located far away from the EMP source and shielded well. With those measures, the EMPs can be avoided which may result that the device has the capability to identify a single event of nuclear reaction products generated in laser-induced plasma from noise EMP backgrounds. This new type of detector can be widely used as a time-of-flight (TOF) detector in high-intensity laser nuclear physics experiments for detecting neutrons, photons, and other charged particles.

show abstract

Section: Reflective Layermentioning

confidence: 99%

Section: Reflective Layermentioning

confidence: 99%

See 1 more Smart Citation

Development of gated fiber detectors for laser-induced strong electromagnetic pulse environments

Zhao

et al. 2021

NUCL SCI TECH

View full text Add to dashboard Cite

show abstract

“…A thin layer of aluminum, Polytetrafluoroethylene (PTFE), or barium sulfate(BaSO 4 ), etc. can be used for this purpose [28][29][30][31]. With a few µm Al, charged particles can relatively easily pass through.…”

Section: A Reflective Layermentioning

confidence: 99%

Development of Gated Fiber Detectors for Laser-Induced Strong Electromagnetic Pulse Environments

Hu,

Ma,

Zhao

et al. 2021

Preprint

View full text Add to dashboard Cite

With the development of laser technologies, nuclear reactions can happen in high-temperature plasma environments induced by lasers and have attracted a lot of attention from different physical disciplines. However, studies on nuclear reactions in plasma are still limited by detecting technologies. This is mainly due to the fact that extremely high electromagnetic pulses (EMPs) can also be induced when high-intensity lasers hit targets to induce plasma, and then cause dysfunction of many types of traditional detectors. Therefore, new particle detecting technologies are highly needed. In this paper, we report a recently developed gated fiber detector which can be used in harsh EMP environments. In this prototype detector, scintillating photons are coupled by fiber and then transferred to a gated photomultiplier tube which is located far away from the EMP source and shielded well. With those measures, the EMPs can be avoided, and this device has the capability to identify a single event of nuclear reaction products generated in laser-induced plasma from noise EMP backgrounds. This new type of detector can be widely used as a Time-of-Flight (TOF) detector in high-intensity laser nuclear physics experiments for detecting neutron, photons, and other charged particles.

show abstract

“…Timeof-flight (TOF) PET scanners can enhance the diagnostic accuracy of reconstructed images by locating positron emissions and improving the signal-to-noise ratio (SNR) of PET data [6,7]. It has been verified that an improved image quality of PET scanner can be achieved with a detector design that is capable of measuring TOF information [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

PET detectors with 127 ps CTR for the Tachyon-II time-of-flight PET scanner

Xie

Zhang

Peng

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

The signal-to-noise ratio (SNR) of the reconstructed image of Positron Emission Tomography (PET) can be improved by the timing measurement. In this article, we designed, fabricated and tested 32 time-of-flight (TOF) detectors for the second generation of Tachyon TOF-PET scanners. The detector module consists of two arrays of 2 × 12 lutetium-yttrium oxyorthosilicate (LYSO) crystal cubes of 6 ×6× 6 mm 3 . The discrete crystals were coupled to the 6 mm silicon photomultipliers (SiPMs) with optical glue. All the SiPM were tested for dark current. To correct the errors in the timing measurements caused by time-walk, two compensation methods (logcorrection and linear-correction) based on the relationship between energy and timing information were purposed. As a comparison, the SiPM arrays coupled to 4 mm and 6 mm side crystal cube without optical glue were tested for coincidence timing resolution (CTR). The mean and standard deviations (SD) of dark current for the 1536 tested SiPMs were 12.72 +/− 1.70 μA at the bias voltage of 31.5 V and the temperature of 20 °C (±1 °C). CTR performance has increased by ~5% within a narrow energy window, and ~10% in a wide energy window by log-correction. The mean and SD of the CTR of 6 mm side crystal cube glue coupled was 126.9 +/− 3.6 ps for the 768 pairs of tested SiPMs. The detector is expected to provide a technical reference for the next generation of ultra-fast CTR commercial PET scanner using multilayer detectors.

show abstract

Studies on sub-millimeter LYSO:Ce, Ce:GAGG, and a new Ce:GFAG block detector for PET using digital silicon photomultiplier

Cited by 19 publications

References 25 publications

Development of gated fiber detectors for laser-induced strong electromagnetic pulse environments

Development of gated fiber detectors for laser-induced strong electromagnetic pulse environments

Development of Gated Fiber Detectors for Laser-Induced Strong Electromagnetic Pulse Environments

PET detectors with 127 ps CTR for the Tachyon-II time-of-flight PET scanner

Contact Info

Product

Resources

About