Scintillation characteristics of the EJ-299-02H scintillator

N. Floyd; Md T. Hassan; Z. Tang; M. Krivoš; M. Blatnik; C. Cude-Woods; S. M. Clayton; A. T. Holley; T. M. Ito; B. A. Johnson; C. Y. Liu; M. Makela; C. L. Morris; A. S.C. Navazo; C. M. O’Shaughnessy; E. L. Renner; R. W. Pattie; A. R. Young

doi:10.1063/5.0179451

Scintillation characteristics of the EJ-299-02H scintillator

N. Floyd, Md T. Hassan, Z. Tang, M. Krivoš, M. Blatnik, C. Cude-Woods, S. M. Clayton, A. T. Holley, T. M. Ito, B. A. Johnson, C. Y. Liu, M. Makela, C. L. Morris, A. S.C. Navazo, C. M. O’Shaughnessy, E. L. Renner, R. W. Pattie, A. R. Young

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

A study of the dead layer thickness and quenching factor of a plastic scintillator for use in ultracold neutron (UCN) experiments is described. Alpha spectroscopy was used to determine the thickness of a thin surface dead layer to be 630 ± 110 nm. The relative light outputs from the decay of ²⁴¹Am and Compton scattering of electrons were used to extract Birks’ law coefficient, yielding a kB value of 0.087 ± 0.003 mm/MeV, consistent with some previous reports for other polystyrene-based scintillators. The results from these measurements are incorporated into the simulation to show that an energy threshold of (∼9 keV) can be achieved for the UCNProBe experiment. This low threshold enables high beta particle detection efficiency and the indirect measurement of UCN. The ability to make the scintillator deuterated, accompanied by its relatively thin dead layer, gives rise to unique applications in a wide range of UCN experiments, where it can be used to trap UCN and detect charged particles in situ.

Original language	English (US)
Article number	045108
Journal	Review of Scientific Instruments
Volume	95
Issue number	4
DOIs	https://doi.org/10.1063/5.0179451
State	Published - Apr 1 2024

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Instrumentation

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Floyd, N., Hassan, M. T., Tang, Z., Krivoš, M., Blatnik, M., Cude-Woods, C., Clayton, S. M., Holley, A. T., Ito, T. M., Johnson, B. A., Liu, C. Y., Makela, M., Morris, C. L., Navazo, A. S. C., O’Shaughnessy, C. M., Renner, E. L., Pattie, R. W., & Young, A. R. (2024). Scintillation characteristics of the EJ-299-02H scintillator. Review of Scientific Instruments, 95(4), Article 045108. https://doi.org/10.1063/5.0179451

Floyd, N, Hassan, MT, Tang, Z, Krivoš, M, Blatnik, M, Cude-Woods, C, Clayton, SM, Holley, AT, Ito, TM, Johnson, BA, Liu, CY, Makela, M, Morris, CL, Navazo, ASC, O’Shaughnessy, CM, Renner, EL, Pattie, RW & Young, AR 2024, 'Scintillation characteristics of the EJ-299-02H scintillator', Review of Scientific Instruments, vol. 95, no. 4, 045108. https://doi.org/10.1063/5.0179451

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abstract = "A study of the dead layer thickness and quenching factor of a plastic scintillator for use in ultracold neutron (UCN) experiments is described. Alpha spectroscopy was used to determine the thickness of a thin surface dead layer to be 630 ± 110 nm. The relative light outputs from the decay of 241Am and Compton scattering of electrons were used to extract Birks{\textquoteright} law coefficient, yielding a kB value of 0.087 ± 0.003 mm/MeV, consistent with some previous reports for other polystyrene-based scintillators. The results from these measurements are incorporated into the simulation to show that an energy threshold of (∼9 keV) can be achieved for the UCNProBe experiment. This low threshold enables high beta particle detection efficiency and the indirect measurement of UCN. The ability to make the scintillator deuterated, accompanied by its relatively thin dead layer, gives rise to unique applications in a wide range of UCN experiments, where it can be used to trap UCN and detect charged particles in situ.",

author = "N. Floyd and Hassan, {Md T.} and Z. Tang and M. Krivo{\v s} and M. Blatnik and C. Cude-Woods and Clayton, {S. M.} and Holley, {A. T.} and Ito, {T. M.} and Johnson, {B. A.} and Liu, {C. Y.} and M. Makela and Morris, {C. L.} and Navazo, {A. S.C.} and O{\textquoteright}Shaughnessy, {C. M.} and Renner, {E. L.} and Pattie, {R. W.} and Young, {A. R.}",

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AU - Hassan, Md T.

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AU - Clayton, S. M.

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AU - Johnson, B. A.

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AU - Makela, M.

AU - Morris, C. L.

AU - Navazo, A. S.C.

AU - O’Shaughnessy, C. M.

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AU - Pattie, R. W.

AU - Young, A. R.

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Scintillation characteristics of the EJ-299-02H scintillator

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