Due to an expected increase in radiation damage in LHC, we propose to transform CMS Hadronic EndCap calorimeters to radiation hard quartz plate calorimeters. Quartz is proved to be radiation hard by the radiation damage tests with electron, proton, neutron and gamma beams. However, the light produced in quartz comes from Cerenkov process, which yields drastically fewer photons than scintillatio...

The Cover Feature illustrates the emission of photons from single dibenzoterrylene (DBT) molecules in para-terphenyl nanocrystals. nanocrystals protect DBT environment and allow for high purity photon states which are spectrally narrow at cryogenic temperatures, making them ideal use quantum technologies. More information can be found Research Article by Ross C. Schofield, Alex S. Clark, co-wor...

We describe a scanning optical microscope based on polarization Sagnac interferometry for measuring ultrasmall phase shifts, and use this method to detect small numbers of absorbing molecules in a solid without the use of fluorescence. The absorption and concomitant optical phase shift of terrylene dopant molecules in a p-terphenyl host crystal are made time dependent by periodic optical satura...

Energy transfer has been investigated in polyvinyltoluene (PVT) scintillators containing pyrene, p-terphenyl and naphthalene by measurement of scintillation pulse shapes and yields. It is concluded that there is an initial rapid diffusion of the excitation energy with solute molecules, residual monomer and PVT excimer sites acting as competing traps. At later times energy can transfer from resi...

Literature dielectric data of glycerol, propylene carbonate, and ortho-terphenyl show that the measured dielectric relaxation is a decade faster than the Debye expectation but still a decade slower than the breakdown of the shear modulus. From a comparison of time scales, the dielectric relaxation seems to be due to a process which relaxes not only the molecular orientation but also the entropy...

The reversed-phase chromatographic behavior of planar and non-planar polycyclic aromatic hydrocarbons (PAHs) is investigated on tetraphenylporphyrin and two metallotetraphenylporphyrin [Sn(IV), In(III)] bonded stationary phases using methanol-water and acetonitrile-water as mixed solvent mobile phases. Large differences in the capacity factors of aromatic solute pairs having the same number of ...