~ The high temperature peaks (TL peaks 6-7) of TLD-600 are known to have higher responses to high LET radiation than to low LET radiation. These high temperature peak characteristics were studied for the automatic readerannealed Harshaw albedo neutron TLD. The high temperature peaks response is linear for neutrons over the dose equivalent range tested (0.05-3 mSv of a 252Cf source moderated by ...

Nuclear materials safeguard efforts necessitate the use of non-destructive methods to determine the attributes of fissile samples enclosed in special, non-accessible containers. To this end, a large variety of methods has been developed. Usually, a given set of statistics of the stochastic neutron-photon coupled field, such as sourcedetector, detector-detector cross correlation functions, and m...

Present techniques admit the possibility of studying the character of fission fragments with spectroscopic identification of pairs of fragments. The simultaneous measurement of the masses and atomic numbers of fission fragments has been demonstrated in studies of the fission of 252Cf (1). The atomic number is determined by detection of a characteristic x-ray, most often a K-x-ray, emitted by on...

Aminoacetylation of lysine residues and the modification of arginine by 1,2-cyclohexanedione to N7,N8-(dihydroxy-1,2-cyclohexylidene)arginine were used for probing the surface topology of hen-eggwhite lysozyme as a model protein. The molecular identification of lysine and arginine modification sites was provided by molecular weight determinations of modified and unmodified tryptic peptide mixtu...

A new method of measuring fission fragment mass and energy distributions as a function of incident neutron energy in the range from below 0.1 eV to 1 keV has been developed. The method involves placing a double-sided Frisch-gridded fission chamber in Rensselaer Polytechnic Institute’s lead slowing-down spectrometer (LSDS). The high neutron flux of the LSDS allows for the measurement of the ener...

Apolipoprotein C-III (apo C-III) is a 79 amino acid glycoprotein. The sugar moiety of apoC-III is attached to amino acid residue 74 and is thought to consist of 1 mole of galactose, 1 mole of N-acetyl-galactosamine, and either 0, 1, or 2 moles of sialic acid. This results in three isoproteins called C-III0, C-III1, and C-III2 designated by the number of sialic acid residues. It has been assumed...

We study the binary cold fission of 252Cf in the frame of a cluster model where the fragments are born to their respective ground states and interact via a double-folded potential with deformation effects taken into account up to multipolarity λ = 4. The preformation factors were neglected. In the case when the fragments are assumed to be spherical or with ground state quadrupole deformation, t...

Nine unmodified endotoxin preparations constituted of Re-, Rd-, and Rc-type lipopolysaccharides (2 to 5 glycoses), representing four species of enterobacteria were analyzed by 252Cf plasma desorption mass spectrometry. The constituent lipopolysaccharides were characterized by the ion pair: (M-H)- and its corresponding lipid fragment ion. The lipid fragment ion is produced by cleavage of the gly...

In this paper we give an analysis of the neutron transmission through iron sphere using Monte Carlo and transport theory methods based on ENDF/B-VII.1 general purpose library. The motivation for investigation comes from a well-known deficiency in inelastic data older library evaluation (ENDF/B-V), giving concern fast flux underestimation within reactor pressure vessels. order to benchmark next-...

This paper reports the first characterization of the (NH(3))(n)NH+ cluster series produced by a 252Cf fission fragments (FF) impact onto a NH(3) ice target. The (NH(3))(n=1-6)NH+ members of this series have been analyzed theoretically and experimentally. Their ion desorption yields show an exponential dependence of the cluster population on its mass, presenting a relative higher abundance at n ...