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Background:The aetiology of maxillary mucosal cysts is uncertain. Chronic rhinosinusitis has been proposed as a probable aetiological explanation for their formation.Method:We recruited 500 consecutive patients who had undergone computed tomography scanning of the paranasal sinuses for possible chronic sinus disease. We identified 110 (22 per cent) cases of maxillary mucosal cysts.Results:Patients' mean age was 42.65 years, with a female to male ratio of 0.69:1 (45:65). The mean cyst size was 14.27 mm, and most were located on the inferior surface of the antrum. Only in two cases did the cyst obstruct the sinus ostium. Of patients with antral cysts, 52.7 per cent had computed tomography evidence of sinus disease, whereas only 41.3 per cent of noncyst (control) patients had sinus pathology. The total Lund–Mackay score was significantly greater in the cyst group (n=390) compared with the noncyst group (Mann–Whitney; pConclusion:Chronic rhinosinusitis plays an important role in the aetiology of maxillary mucosal cysts.

Globus pharyngeus is a common ENT condition. This paper reviews the current evidence on globus and gives a rational guide to the management of patients with globus. The aetiology of globus is still unclear though most ENT surgeons believe that reflux whether acidic or not plays a significant role. Though proton pump inhibitors are used extensively in practice, there is little evidence to support their efficacy. Most patients with globus can be discharged after simple office investigations. The role of pepsin-induced laryngeal injury is an exciting concept that needs further study. Given the benign nature of globus pharyngeus, in most cases, reassurance rather than treatment or extensive investigation with rigid oesophagoscopy or contrast swallows is all that is needed. We need more research into the aetiology of globus.

The charge, velocity, and angular distributions of three coincident fragments measured for the system [sup 40]Ar on [sup 232]Th at an incident energy of 31 MeV/nucleon evidence a deep inleastic collision process followed by fission. The estimated total kinetic energy loss is about 600--800 MeV which represents roughly 60--80% damping of the initial kinetic energy.

A 71-year-old lady underwent successful excision of a haemangioma of the frontal sinus, via an osteoplastic flap approach. Haemangioma of the paranasal sinuses is an extreme rarity. A case is presented and the literature reviewed.

Intermediate-mass fragments formed in reactions of $^{3}\mathrm{He}$ ions with $^{\mathrm{nat}}\mathrm{Ag}$ and $^{197}\mathrm{Au}$ targets have been studied at five energies between 0.48 and 3.6 GeV. Inclusive measurements show that as the bombarding energy increases, there is a strong enhancement in fragment cross sections and a trend toward isotropic angular distributions. Between 0.90 and 1.8 GeV, a change in the emission mechanism is suggested by (1) kinetic energy spectra with high-energy tails that become distinctly flatter, (2) a broadening of the spectral Coulomb peaks toward lower energies, and (3) charge distributions that become constant, exhibiting a power-law exponent \ensuremath{\tau}\ensuremath{\approxeq}2.0. Exclusive studies of the $^{3}\mathrm{He}$${+}^{\mathrm{nat}}$Ag system at 0.90 and 3.6 GeV detected multifragment events with multiplicities up to four. The probability for high-multiplicity events increases about 40-fold between 0.90 and 3.6 GeV. At both energies, the kinetic energy spectra depend on multiplicity, especially when triggering on backward-emitted fragments. For multiplicity three events, a rapidity analysis of the data at 3.6 GeV is consistent with a single, relatively low source velocity, ${\mathit{v}}_{\mathit{S}}$\ensuremath{\approxeq}0.4 cm/ns. The data are compared with predictions of a coplanarity-sphericity calculation, the sequential statistical decay code GEMINI, and a hybrid intranuclear cascade/percolation model.

The emission of complex fragments (3⩽ Z ≲12) from reactions of 3 He with nat Ag has been studied at bombarding energies of E = 480, 900, 1800, 2700 and 3600 MeV. Between 900 and 1800 MeV slopes of the fragment kinetic energy spectra at backward angles undergo a change in character, becoming much flatter; in addition, the Coulomb peak is found to broaden significantly and shift to lower energies. Power-law fits to the fragment charge distributions result in decreasing values of the exponent τ up to a bombarding energy of 1800 MeV; at this value and beyond, a constant value of τ =2.1±0.1 is observed. Elemental cross sections at the highest energy are found to increase by approximately two orders of magnitude relative to data near 100 MeV. The data suggest a change in reaction mechanism between incident energies of 900 and 1800 MeV.

We describe a case of a newborn baby with a prenatal diagnosis of an epignathus (oropharyngeal teratoma). With the potential for airway problems at birth, he was delivered by an elective EXIT (Extra Utero Intrapartum Treatment) procedure at 38 weeks of pregnancy. The airway was secured and rigid bronchoscopy performed. Initially he was stable, but developed cardiorespiratory difficulties 40 minutes after birth and died from a cardiac arrest 17 minuteslater. Tension pneumothorax is a devastating complication that can occur with lower airway manipulation for anaesthesia and rigid bronchoscopy. The addition of positive pressure during mechanical ventilation converts the pneumothorax into a tension pneumothorax. The possibility of tension pneumothorax should be entertained in a mechanically ventilated patient whose ventilatory pressures are increasing, with diminishing cardiac output. A complicated case is presented, where the diagnosis was missed with a fatal outcome.

Septal deviation is a common finding and its role in the pathogenesis of chronic rhinosinusitis remains uncertain. The aim of this study was to assess the impact of septal deviation in the region of the ostiomeatal complex with regards to sinus disease, as staged by the Lund-Mackay scoring system in a group of adult patients with symptoms of chronic rhinosinusitis. Five hundred consecutive patients who had undergone CT scanning of the paranasal sinuses for possible chronic sinus disease between Sept. 2002 and Dec. 2003 were recruited. Septal deviation at the ostiomeatal complex on coronal CT scan was evaluated using Radworks diagnostic 5.1 software (Applicare Medical Imaging BU). There were 219 patients with CT positive sinus disease. 281 of the patients had normal sinus CT scans (control group) and were therefore patients with rhinitis rather than rhinosinusitis. Our study showed no significant difference between the chronic rhinosinusitis group and the control group with regards to septal deviation. Nor were we able to demonstrate any correlation between the severity of septal deformity at the ostiomeatal complex region and the severity of sinus disease or OMC disease.

The principal reason for performing investigations in patients with globus pharyngeus is to detect a pharyngeal or upper oesophageal malignancy presenting this way. There is uncertainty regarding both the necessity for investigation in globus patients and the first line investigation of choice in the screening of such patients. The authors therefore undertook a retrospective study of 699 patients who presented with globus sensation. Of these, 451 patients (64.5 per cent) had a typical history and in these patients, outpatient examination, including fibre-optic nasendoscopy was able to detect all pathologies, except one insignificant pharyngeal pouch, which required no intervention and one patient with a distal peptic stricture. In patients with atypical symptoms the combination of fibre-optic nasendoscopy and barium swallow identified all pathologies (five aerodigestive tract malignancies) except one distal peptic stricture. The authors concluded that if out-patient examination is adequate, no further investigation of typical globus symptoms is required. Such a policy would produce significant savings for both out-patient and radiology services.

Cervical necrotizing fasciitis is a rare, rapidly progressive, severe bacterial infection of the soft tissues of the neck. Uncommonly, it may descend into the mediastinum. We describe a case of descending necrotizing mediastinitis in a young man, where there was diagnostic confusion and delay, with an eventual fatal outcome. A steroid injection for neck pain is thought to be the source of infection. In this case, the signs of mediastinitis were initially masked, and the diagnosis delayed until cardiopulmonary arrest occurred. Early recognition with a low threshold for computed tomography (CT) scanning is essential. Aggressive multidisciplinary therapy with mediastinal drainage is mandatory.

Acoustic rhinometry readings are very position dependent, and it was hypothesized that this accounts for its relative lack of reproducibility on a day-to-day basis. Multiple readings on each visit were taken to investigate their impact, if any, on improving the day-to-day reproducibility of the method. Measurements of the minimal cross-sectional area of the nose as measured by acoustic rhinometry were studied in 10 subjects following nasal decongestion. For each individual, acoustic rhinometry was performed ten times. The ten recordings were repeated again, in an identical manner on a separate day. The subjects were repositioned and the nasal probes reinserted between each measurement. The mean coefficient of variation for minimal cross-sectional area readings in all 10 subjects was calculated as 9.92%. This is comparable to the day-to-day variability of acoustic rhinometry as measured by other workers and thus supports the hypothesis that the high measurement error of the device (rhinometer) is a function of positional variation during data acquisition. We were able to demonstrate a minimal gain in intervisit reproducibility by doing multiple recordings per person, with a plateau effect of reproducibility after 7 repeat readings.

We present the first case report in the English literature of an intramuscular haemangioma of the geniohyoid muscle. This occurred in a 24-year-old female and the diagnosis was not made prior to resection. Haemangiomas are uncommon tumours of the head and neck and intramuscular haemangiomas account for fewer than one per cent of the total. Diagnosis of the vascular nature of the tumour is often missed. Recurrence is common and usually due to incomplete excision. A review of the literature and a case report of theselocally destructive lesions is presented.

Internal jugular vein thrombosis is an uncommon potentially life-threatening disorder caused by various conditions. Non-spontaneous internal jugular vein thrombosis is an uncommon condition associated in the preantibiotic area with deep-neck infections. Currently iatrogenic trauma to the internal jugular vein from catheterisation and repeated intravenous injections by drug abusers are the leading causes of thrombosis. Spontaneous internal jugular vein thrombosis may occur when there are no apparent pre-disposing mechanical or inflammatory causes although a few of these patients may harbour an occult malignant neoplasm. Hence, careful investigation and follow-up are vital. Thrombosis in Trousseau's syndrome is usually confined to the vascular system of the extremities and the viscera. However, secondary to the paraneoplastic hypercoagulable state, thrombosis can occur in the large veins of the head and neck region. We understand this to be the first case where spontaneous internal jugular vein thrombosis and ipsilateral recurrent laryngeal nerve paralysis were the only initial manifestations of an occult malignancy.

By coupling a thin fast NE102A plastic scintillator to a BaF2 crystal, we have been able to detect and identify simultaneously light charged particles and heavy ions from Z = 1 to Z = 18. Time-of-flight information is used to separate Z = 1 isotopes and to distinguish fission fragments from other reaction products.

Different entrance channels have been investigated to form very hot nuclei and to study their decay properties. i) Argon and Nickel projectiles accelerated to energies close to the Fermi energy show that central collisions induce momentum transfers to target nuclei which are proportional to the mass of the projectiles and not to their velocities over the range of energies studied. The preequilibrium model fits nicely the experimental results. The decay properties of the fission products for hot nuclei will be presented. Both head-on collisions and peripheral massive transfers contribute to the formation of very excited nuclei. The question of the influence of the energy deposition in the composite like system on limiting their yields is discussed. ii) Investigations have also been performed with alpha projectiles at much higher incident energy (around 1 GeV/u). It is shown that hot and thermalized nuclei are also formed even when nucleon-nucleon collisions are dominant. A sensitive parameter of the transition from binary fission to multifragmentation seems to be the energy deposition in the target residues rather than the projectile velocity.

Angular correlations between fission fragments induced by an 40Ar bombardment of 232Th targets at four energies, 31, 35, 39 and 44 MeV/u, have been measured as well as the energies, velocities and masses of both fragments. The characteristics of peripheral collisions remain about constant in the range studied, whereas the component attributed to the central collisions which shows a saturation in linear momentum transfer at 180 MeV/c per incident nucleon, has a cross section decreasing with bombarding energy which is correlated to an increase of the excitation energy of the fissioning nuclei.

Correlations between target fragments were measured in α- and 14N-induced reactions at 70, 250 and 800 MeV/u incident energies. The reaction mechanism is characterized by the linear momentum transfer and the excitation energy which were deduced from the kinematics and the mass distribution of the fission fragments. By selecting targets lighter than Th (Au and Ho) the yield from peripheral collisions is reduced by the increase in the fission barrier thus allowing events with the highest linear momentum transfer and excitation energy to be favoured. The results show that up to an incident energy of 800 MeV/u hot nuclei are formed which decay via normal binary fission. The linear momentum transfer is essentially constant over the covered energy range, but the excitation energy increases until the total incident energy is greater than 3 GeV. At this energy, independent of the projectile mass the fission probability of the heavy nuclei drops below 50%, while the emission of intermediate-mass fragments increases. The relative velocities between two intermediate-mass fragments exceed strongly the values of binary fission. Monte Carlo calculations show that the relative velocities between these fragments exclude a sequential emission from the recoil nucleus and support a simultaneous breakup mechanism.

Fragment-fragment correlations have been studied in α -induced reactions at incident energies from 70 to 800 MeV/u on Ag, Ho and Au targets. Even at the highest energy binary thermal fission is observed with excitation energies up to 800–900 MeV. In addition, events with mass number around 30 and relative velocities up to twice the values expected for thermal fission occur and are attributed to multifragmentation. The energy deposit rather than the projectile velocity seems to be parameter governing the appearance of the multifragmentation process which competes strongly with fission for imparted energies beyond 800 MeV.

Cross sections for evaporation residues following the complete fusion of the 12 C + 12 C, 14 N + 12 C and 15 N + 12 C systems have been measured with a E − ΔE counter telescope in a wide range of incident energies. They are fairly well reproduced by evaporation calculations based on the statistical theory. The total fusion excitation function of the 12 C + 12 C system shows strong structure, which is compared to the predictions of the reaction cross sections derived from coupled channel calculations and to the integrated inelastic cross sections. Critical angular momenta have been obtained from the fusion cross-section data and these values are discussed in the framework of compound nucleus and entrance channel effects. A striking difference is observed between the fusion cross sections of the 14 N + 12 C and 15 N + 12 C systems and shows the importance of the valence nucleons of colliding ions in the fusion process. A possible interpretation might be the influence of the yrast line of the compound nuclei.

The fusion cross sections of systems leading to s-d shell compound nuclei reveal a strong dependence upon the number of valence nucleons of the colliding ions. This striking feature is discussed in terms of entrance channel and compound nucleus effects.

The study of evaporation residue from the Ne + Ag system shows that there is qualitative change in the reaction mechanism in the Fermi energy domain. At 20 MeV/u the projectile is mostly absobered by the target, while at 30-37 MeV/u a continious range of mass transfer with a large transverse momentum is observed.

Elastic and inelastic scatterings of 160 on Ii6Sn were analyzed with the coupled channel program ECIS to obtain informations on optical mode1 and deformation parameters. Angular distributions of one and two proton transfers were measured and discussed in the frame- work of the DWBA. The importance of the two step process has been studied.

Angular distributions of levels observed in the 18O(12C, 10Be)20Ne, 26Mg(12C, 11B)27Al, 26Mg(12C, 10Be)28Si and 26Mg(12C, 9Be)29Si reactions have been measured at 46 MeV incident energy; some of them show a strong oscillating pattern. Spectroscopic factors extracted from a DWBA analysis of the (12C, 11B) 1p transfer with the LOLA code, are consistent with those derived from (3He, d). The influence of recoil effects on both the shapes of the angular distributions and the absolute magnitudes of cross sections have been studied for (12C, 11B) and (16O, 15N). The 2p transfer reactions leading to 20Ne and 28Si have been analyzed using realistic microscopic wave functions. Effects of configuration mixings on both the relative and the absolute cross sections are presented. The validity of approximating the 2p wave function by a 0s cluster component is discussed and some nuclear structure information is derived. The 26Mg(12C, 9Be)29Si reaction populates preferentially the same levels as the 28Si(d, p)29Si reaction. A DWBA analysis using a 3He cluster form factor gives relative spectroscopic strengths close to those derived from (d, p) stripping.

Angular correlations and angular distributions of the fission fragments produced in the bombardment of a 232 Th target with protons, deuterons and α-particles in the energy range between 35 and 1000 MeV/nucleon have been measured. From these measurements, the distributions of linear momentum imparted to fissioning nuclei have been deduced in the various energy regimes; dominating reaction mechanisms are classified according to the fraction of the available incident momentum transferred to the target. The experimental results are compared to the predictions of intra-nuclear cascade calculations. An optimum excitation energy supported by the fissioning nuclei could be the dominant limitation to momentum transfer at high incident energies. The angular distributions of the fission fragments were used to extract fission cross sections and upper limits of the angular momentum imparted to the fissioning nuclei.

Angular distributions have been measured for the elastic and inelastic scattering of 64 MeV 16 O ions on 116 Sn targets and analysed through coupled-equation calculations. The one-proton transfer has also been studied and the DWBA analysis gives results consistent with those derived from ( 3 He, d). The two-proton transfer has been analysed in the framework of both DWBA and CCBA; theoretical wave functions for Te isotopes have been tested and the importance of multistep processes is discussed.

Formation and decay properties of composite-like nuclei produced by 58 Ni projectiles bombarding 232 Th target nuclei are investigated at different energies by means of fission fragment angular correlation measurements. Experimental results are compared to the excition model and excitation energies in the fissioning nuclei are deduced. By comparing the present data with the results on other systems, the influences of entrance channel conditions and composite-like nuclei temperatures are discussed to explain the evolution of the high linear momentum transfer region. The coexistence of both massive transfer mmechanism and head-on collisions followed by preequilibrium is suggested.

States in 20 Ne have been studied through the 12 C( 14 N, 6 Li) 20 Ne reaction. Excitation functions have been measured from 20 MeV to 60 MeV in steps of 5 MeV at different angles for 20 Ne states up to 10 MeV excitation energy. States of 24 Mg have been also populated using the 12 C( 14 N, d) 24 Mg reaction; excitation functions of 24 Mg states up to 9 MeV excitation energies as well as angular distributions at 35 MeV bombarding energy have been obtained. Comparisons of data with Hauser-Feshbach calculations show clearly that the compound nucleus mechanism is the main process for both 12 C( 14 N, 6 Li) 20 Ne and 12 C( 14 N, d) 24 Mg reactions. Strong evidence has been provided for inhibition of the 26 Al compound nucleus formation for angular momenta higher than critical values. The location of the yrast line in the 26 Al nucleus is discussed.

Angular distributions for the scattering cross section of 14.6 MeV neutrons on sulphur have been measured by the time-of-flight technique. The measurements included elastically scattered neutrons and two inelastically scattered neutron groups, corresponding respectively to the 2.24 MeV level in S32 and to several levels between 4 and 5 MeV that are not resolved in the present experiment.

Single proton hole states in odd indium isotopes are investigated using the (d, 3 He) reaction on even tin isotopes at 22 MeV bombarding energy. DWBA calculations using the JULIE Code have been performed to assign l p values and to extract spectroscopic factors. A “ J -dependence” in the l p = 1 proton transfers has been observed; distorted wave calculations predict this effect. The level schemes of residual nuclei are discussed.

The (t, α) reactions on even tellurium isotopes ( fA = 122 to 130) have been studied at an incident triton energy of 12 MeV. Alpha angular distributions of transitions leading to states of antimony nuclei have been compared to DWBA calculations. Angular momentum transfers and spectroscopic factors have been obtained. Present results show significant configuration mixing of the proton wave function in the tellurium targets. Proton hole states in Sb isotopes have been located and the two-particle-one-hole interaction is discussed.

The (1 4N, 6Li) reaction on 1 zC, 14C. 1 6 0 , and 24Mg targets has been studied at 45 MeV incident energy and at some forward angles. Spectra obtained are compared with those observed by the (7Li, t) or (6Li, d) reactions. Multiparticle configurations of some states of residual nuclei are discussed. Recent work on the (I4N, 6Li) reaction [I] has shown some evidence of the usefulness of this reaction for the direct transfer of eight nucleons. Moreover the comparison between spectra of nuclei excited via the (7Li, t) o r (6Li, d) reactions and the (14N, 6 ~ i ) reaction is very promising a s a new and powerful spectroscopic probe to study nlultiparticle excited states. In this paper we report on some results obtained from the (l4N, 6 ~ i ) reaction on "C, I4C, 1 6 0 and 24Mg targets. All these experiments were performed using a 45 MeV 14N(5+) beam from the Saclay FN Tandem Accelerator. The l2C(I4N, 6Li)20Ne reaction. Outgoing 6Li particles were detected a t 30, 50 and 100 using a Buechner magnetic spectrograph with eight position-sensitive detectors in the focal plane. The overall energy resolution was 40 keV mainly due t o the 10-12 pg/cm2 target thickness. Spectra were also obtained a t 1 5 O (Fig. 1) and 20° using a AE.E telescope counter. FIG. I . 6Li spectra obtained at Is0 laboratory by bombarding a I2C target (upper part) and a 14C target (lower part) with a nitrogen beam of 45 MeV incident energy. Known levels from previous works are indicaded. Blackened peaks (lower part) arise from the contribution of 12C contaminant. Article published online by EDP Sciences and available at http://dx.doi.org/10.1051/jphyscol:1971631 C6-170 M. CONJEAUD, S. HARAR, E. DA SILVEIRA AND C . VOLANT Same experiments have been performed recently at Heidelberg [ l ] and Brookhaven [2] at 52 and 60 MeV incident energy respectively. General features are very similar to those observed in the present experiment at 45 MeV. The comparison of relative yield of transitions to 20Ne via the transfer of four [3] and eight nucleons reveals the following features : i) The members of the ground state band are strongly populated in both reactions. ii) The members of the K = 2band (based on the 4.97 MeV, 2state) are much more strongly excited by the (14N, 6Li) reaction than by the (7Li, t) reaction. This suggests that the structure of this band involves an 1 6 0 excited core. iii) Tewari et al. [4], and Arima et al. [4] have suggested the possible existence of a 8p-4h band or [220] quartet configuration around 7 MeV. The O+ states at 6.72 MeV and 7.20 MeV are two candidates for such structures with the corresponding 2' states a t 7.43 MeV and 7.84 MeV. The (14N, 6Li) reaction does not excite preferentially one of them. But recently strong evidence for such quartet states at 7.20 and 7.84 MeV have been reported by Middleton et al. [5]. The 14C(14N, 6Li)22Ne reaction. Spectra have been obtained at two angles (100 and 15O) using a AE.E telescope counter. Targets of 25 pg/cm2 were made using a method described elsewhere [6]. The 14C(14N, 6Li)22Ne spectrum figure lb, does not exhibit a strong selectivity as observed in the I2C(l4N, 6~i)20Ne. The sum of cross sections for all transitions up to 15 MeV excitation energy is 3 times weaker than for ON^. In the 14C(14N, 6Li)22Ne reaction the same yield of 7Li relative to 6Li is observed. On the contrary, a factor of 10 has been found for the ratio 6Li/7Li in the case of 12C target. This difference can be explained by Q-value considerations (Q = 23.8 MeV for (14N, 7Li) reaction on 12C and 3.3 MeV on 14C). More data are necessary to try a reliable comparison with the 180('Li, t)22Ne reaction [7]. The 160(14N, 6 ~ i ) 2 4 M g reaction. Spectra at 30, 50,100 have been obtained using the Buechner magnetic spectrograph. The overall energy resolution is about 100 KeV mainly due to the 40-50 pg/cm2 thickness of SiO targets. Some data have been also recorded on nuclear emulsion plates and with a telescope counter. Peaks arise up to 20 MeV excitation with comparable strengths in the whole spectrum. The study of the 2 0 ~ e ( 6 ~ i , d)24Mg has shown [8] that the transitions up to 8 MeV are much weaker than the transitions at upper energies. Relative yields of peaks observed in 24Mg by transferring four or eight nucleons are schematically represented in the figure 2 ; they are normalized on the FIG. 2. Diagram of relative yields of the 20Ne(6Li7 d)ZJMg reaction (upper part) and of the 160(14N, 6Li)24Mg reaction (lower part). 6.00 MeV 4' state. The comparison reveals the following features : i) The ground state band members (up to the 6+ state) are the most prominent peaks of the spectra and their strengths are nearly proportional to (2 J + 1). The 20Ne(6~i , d)24Mg reaction does not exhibit such selectivity. The ground state band might have a large overlap with the 1 6 0 0 structure. Akiyama et al. [9] found that, the (84) SU3 representation of the [44] symmetry corresponds to about 75 % of the wave function of the ground state band. ii) The 0' state at 6.44 MeV and the 2' at 7.35 MeV are described [9] mainly with the (46) SU, representation. These levels are more excited by the transfer of four nucleons than by the transfer of eight. They might have an appreciable overlap with the 2 0 ~ e @ 1 quartet structure. The 24Mg(L4N, 6Li)32S reaction. Some measurements have been done for this reaction. Preliminary results indicate that the cross sections integrated over the whole spectrum is roughly one order of magnitude weaker than the one observed in the 12C(14N, 6Li)20Ne. The drastic decrease of cross sections when increasing target mass is similar to the observations made for the (6Li, d) and ('Li, t) reactions [5]. In both cases, a break up process of the lithium ion could explain this aspect.

14.5-Mev neutrons have been scattered by /sup 32/S. Angular distributions have been measured for inelastic scattering (Q = 0, Q =-2.24Mev, and Q =-4 to-5 Mev), by the timeof-flight method with the associated particle. The results are compared with the theoretical predictions for transition 0/sup +/ yields 2/sup +/, E approximates 2 Mev, A approximates 30. The experimental curves Q =-2.24 Mev and approximates =--4 to -5 Mev are very similar. (auth)

Deuteron angular distributions from the (3He, d) reaction on the even Sn isotopes leading to states of the corresponding odd Sb isotopes (A = 113 to 125) have been studied at an incident 3He energy of 18 MeV. DWBA calculations using the JULIE code have been performed to assign lp values and extract spectroscopic factors. On the basis of this analysis, levels were found carrying large fractions of the 1g72, 2d52 and 1h112 proton single-particle strength. The splitting of the 2d32 and 3s12 strength in many levels is more pronounced. Spacings and spectroscopic factors for the low-lying states are in fair agreement with calculations of Kisslinger and Sorensen.

The ( 3 He, d) and (α, t) reactions on 116 Cd have been used to study levels in 117 In up to 2.8 MeV excitation. The measurements were performed at the 3 He and α-particle bombarding energies of 27 and 25.5 MeV, respectively, using a magnetic spectrograph. Deuteron angular distributions were compared with the distorted-wave Born approximation predictions to obtain angular momentum transfer and spectroscopic factors. Tritons were recorded at only three angles. Present results show significant configuration mixing of the proton wave function in the 116 Cd ground state. The low-lying positive-parity levels of 117 In are discussed in the framework of the particle core coupling model and the rotational model.