论文信息 - Influence of the Temperature Dependence of the NaI(Tl) Decay Time Constant on NaI(Tl) Detector Applications

Influence of the Temperature Dependence of the NaI(Tl) Decay Time Constant on NaI(Tl) Detector Applications

Pulse shape discrimination is used in important NaI(Tl) detector applications, such as, Phoswich applications, particle separation, and pile-up suppression. These applications utilizing only pulse height spectra gated by a PSD window can be compromised by temperature excursions in the detector. We present measurements of the NaI(Tl) decay time constant over the range 0°C - 24°C. A temperature variation of ~5 nsec/°C was measured. The implications of the temperature variation on detector performance are discussed.

E. Schneid | E. Kamykowski | F. Swanson

[1] S. Somasundaram,et al. A large-area phoswich detector for measurement of low levels of low-energy photon emitters , 1975 .

[2] C. M. Bartle. A study of (n,p) and (n,α) reactions in NaI(Tl) using a pulse-shape-discrimination method , 1975 .

[3] J. Kurfess,et al. NaI(Tl) - CsI(Na) Phoswich Detectors for X-Ray Astronomy , 1975, IEEE Transactions on Nuclear Science.

[4] W. Kessel,et al. A pulse shape discriminator for particle separation and pile-up suppression , 1964 .

[5] V. I. Startsev,et al. Temperature Dependence of the Luminescence of NaI(Tl) Crystals at Temperatures between 0° and 270°C , 1960 .