Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Utpal N. Roy"'
Publikováno v:
Electronics Letters, Vol 60, Iss 17, Pp n/a-n/a (2024)
Abstract We report the first‐time measurement of the electron‐hole pair (ehp) creation energy (Wehp) in novel Cd0.9Zn0.1Te0.98Se0.02 (CZTS) quaternary semiconductor. CZTS in single crystalline form is poised to be the future of large‐volume roo
Externí odkaz:
https://doaj.org/article/b65dd832d6ba46d7aaf32d7f1d540b51
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Both material quality and detector performance have been steadily improving over the past few years for the leading room temperature radiation detector material cadmium-zinc-telluride (CdZnTe). However, although tremendous progress being mad
Externí odkaz:
https://doaj.org/article/0f687fddede24776a07680af34bdeb43
Publikováno v:
Radiation, Vol 1, Iss 2, Pp 123-130 (2021)
Detection of X- and gamma-rays is essential to a wide range of applications from medical imaging to high energy physics, astronomy, and homeland security. Cadmium zinc telluride (CZT) is the most widely used material for room-temperature detector app
Externí odkaz:
https://doaj.org/article/824e76da1d8e4ca6941dc57443b450cd
Autor:
Václav Dědič, Tomáš Fridrišek, Jan Franc, Jan Kunc, Martin Rejhon, Utpal N. Roy, Ralph B. James
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract This paper describes a new method for direct measurement and evaluation of the inhomogeneous electrostatic vector field with translational symmetry in electro-optic materials exhibiting the Pockels effect. It is based on the evaluation of ma
Externí odkaz:
https://doaj.org/article/ffb10ca4f74941ef851c03c41c3ca2fa
Autor:
Stephen U. Egarievwe, Utpal N. Roy, Ezekiel O. Agbalagba, Benicia A. Harrison, Carmella A. Goree, Emmanuel K. Savage, Ralph B. James
Publikováno v:
IEEE Access, Vol 8, Pp 137530-137539 (2020)
Wide bandgap semiconductor materials capable of detecting X-rays and gamma-rays at room temperature without cryogenic cooling have great advantages that include portability and wide-area deployment in nuclear and radiological threat defense. Addition
Externí odkaz:
https://doaj.org/article/c7313970fea34a7fbc08f8323f7b5f06
Publikováno v:
Instruments, Vol 6, Iss 4, p 69 (2022)
Nuclear detectors for x-ray and gamma-ray spectroscopy and imaging are a vital tool in many homeland security, medical imaging, astrophysics and other applications. Most of these applications require room-temperature operation due to the operational
Externí odkaz:
https://doaj.org/article/ad0349bec90e491cab8de44698e0bcb8
Publikováno v:
Sensors, Vol 22, Iss 1, p 171 (2021)
We performed a gradual low-temperature annealing up to 360 K on a CdZnTeSe radiation detector equipped with gold and indium electrodes under bias at both polarities. We observed significant changes in the detector’s resistance and space-charge accu
Externí odkaz:
https://doaj.org/article/891c3a21b64040a4895dda6e561f8798
Autor:
Terry Lall, Yonggang Cui, Giuseppe S. Camarda, Anwar Hossain, Ge Yang, Utpal N. Roy, Ralph B. James
Publikováno v:
AIMS Medical Science, Vol 3, Iss 1, Pp 114-125 (2016)
Positron emission tomography (PET) and single-photon emission-computed tomography (SPECT) are important nuclear-medical imaging tools in diagnosing cancers and creating effective treatment plans. Commercially imaging systems are operated externally a
Externí odkaz:
https://doaj.org/article/93038862ec2a452dabfe92a9ee5d2d1e
Autor:
Stephen U. Egarievwe, Utpal N. Roy, Carmella A. Goree, Benicia A. Harrison, Jeanette Jones, Ralph B. James
Publikováno v:
Sensors, Vol 19, Iss 15, p 3271 (2019)
Cadmium zinc telluride selenide (Cd1−xZnxTe1−ySey or CZTS) is one of the emerging CdTe-based semiconductor materials for detecting X- and gamma-ray radiation at or near room temperature (i.e., without cryogenic cooling). Potential applications of
Externí odkaz:
https://doaj.org/article/2f50a5b3b249461c91b86e56703ebe4d
Autor:
Jonathon N. Baker, Utpal N. Roy
Publikováno v:
The Journal of Physical Chemistry C. 126:21348-21355
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fbff0e880f524cd87a759c2d0acc2df
https://doi.org/10.1021/acs.jpcc.2c05168
https://doi.org/10.1021/acs.jpcc.2c05168