| Title | Extreme ultraviolet photon conversion efficiency of tetraphenyl butadiene |
| Publication Type | Journal Article |
| Year of Publication | 2020 |
| Authors | J. R. Graybill, C. B. Shahi, M. A. Coplan, A. K. Thompson, R. E. Vest, and C. W. Clark |
| Journal | Appl. Optics |
| Volume | 59 |
| Pagination | 1217-1224 |
| Date Published | FEB 1 |
| Type of Article | Article |
| ISSN | 1559-128X |
| Abstract | Extreme ultraviolet (EUV) radiation can be converted to visible light using tetraphenyl butadiene (TPB) as a phosphor. 1 mu m films of TPB were prepared using thermal vapor deposition of the pure material and by spin coating suspensions of TPB in high-molecular-weight polystyrene/toluene solutions. Calibrated sources and detectors were used to determine the effective photon conversion efficiency of the films for incident EUV radiation in the wavelength range of 125 nm <= lambda <= 200 nm. After exposure to atmosphere, the efficiency of the vapor-deposited films decreased significantly, while the efficiency of the spin-coated films remained unchanged. The production of TPB films by spin coating offers the advantages of simplicity and long-term stability. (C) 2020 Optical Society of America |
| DOI | 10.1364/AO.380185 |
