Scintillator-based ion beam profiler for diagnosing laser-accelerated ion beams

Next generation intense, short-pulse laser facilities require new high repetition rate diagnostics for the detection of ionizing radiation. We have designed a new scintillator-based ion beam profiler capable of measuring the ion beam transverse profile for a number of discrete energy ranges. The optical response and emission characteristics of four common plastic scintillators has been investigated for a range of proton energies and fluxes. The scintillator light output (for 1 MeV > Ep < 28 MeV) was found to have a non-linear scaling with proton energy but a linear response to incident flux. Initial measurements with a prototype diagnostic have been successful, although further calibration work is required to characterize the total system response and limitations under the high flux, short pulse duration conditions of a typical high intensity laser-plasma interaction

Altération du rythme de mue chez l'isopode valvifère idotea balthica basteri soumis en permanence à un détergent non ionique

Un exemple d'altération de rythme biologique sous l'effet d'un polluant est exposé : l'altération du rythme de mue chez le Crustacé Isopode Idotea balthica basteri. Des femelles de cette espèce soumises à l'action chronique d'un détergent non ionique à la concentration de 5 mg/l à 17° présentent des modifications du rythme de mue. Les durées d'intermues sont soit diminuées, soit allongées de manière importante par rapport aux témoins. Ces phénomènes, en particulier l'allongement des durées intermues, sont à mettre en liaison avec d'importantes modifications histologiques qui se produisent au niveau de la glande de mue. Les conséquences pour la population ne sont pas négligeables

Haploops Lilljeborg 1855

Key to species of &lt;i&gt;Haploops&lt;/i&gt; &lt;p&gt;1 Corneal lenses present................................................................................. 2&lt;/p&gt; &lt;p&gt;- Corneal lenses absent................................................................................. 14&lt;/p&gt; &lt;p&gt;2 Two pairs of corneal lenses............................................................................ 3&lt;/p&gt; &lt;p&gt;- Only one pair of corneal lenses........................................................................... 7&lt;/p&gt; &lt;p&gt; 3 Inferior lenses in the middle of the lobe head.................................... &lt;i&gt;Haploops sibirica&lt;/i&gt; Gurjanova, 1929&lt;/p&gt; &lt;p&gt;- Inferior lenses near or on the margin head.................................................................. 4&lt;/p&gt; &lt;p&gt; 4 Inferior lenses near the margin head......................................... &lt;i&gt;Haploops dellavallei&lt;/i&gt; Chevreux, 1900&lt;/p&gt; &lt;p&gt;- Inferior lenses on the margin............................................................................ 5&lt;/p&gt; &lt;p&gt; 5 Short down-like setae on the back, Coxa1 strongly truncated............................. &lt;i&gt;Haploops laevis&lt;/i&gt; Hoek, 1882&lt;/p&gt; &lt;p&gt;- These characters absent................................................................................ 6&lt;/p&gt; &lt;p&gt; 6 Inferior lenses on the margin, antennae = body length............................. &lt;i&gt;Haploops nirae&lt;/i&gt; Ka&iuml;m-Malka, 1976&lt;/p&gt; &lt;p&gt; - Inferior lenses on the internal side of the margin, antennae = 1/2 body lenth............ &lt;i&gt;Haploops tenuis&lt;/i&gt; Kanneworff, 1966&lt;/p&gt; &lt;p&gt;7 Only superior lenses present (inferior absent).............................................................................................. 8&lt;/p&gt; &lt;p&gt;- Only inferior lenses present (superior absent)............................................................... 13&lt;/p&gt; &lt;p&gt;8 A1 &lt;A 2........................................................................................... 9&lt;/p&gt; &lt;p&gt;- A1&gt; A 2........................................................................................... 12&lt;/p&gt; &lt;p&gt;9 A1 length &lt;or = A 2 peduncle.......................................................................... 10&lt;/p&gt; &lt;p&gt;- A1 length&gt; A 2 peduncle.............................................................................. 11&lt;/p&gt; &lt;p&gt; 10 A1 length &lt;A2 peduncle, head truncated straight................................. &lt;i&gt;Haploops descansa&lt;/i&gt; Barnard, 1961&lt;/p&gt; &lt;p&gt; - A1 length = A 2 peduncle, head transversely truncated.......................... &lt;i&gt;Haploops oonah&lt;/i&gt; Lowry &amp; Poore, 1985&lt;/p&gt; &lt;p&gt; 11 A 2 = 1 / 3 body................................................ &lt;i&gt;Haploops fundiensis&lt;/i&gt; Wildish &amp; Dickinson, 1982&lt;/p&gt; &lt;p&gt; - A 2 = 1 / 2 body............................................................ &lt;i&gt;Haploops tubicola&lt;/i&gt; Lilljborg, 1856&lt;/p&gt; &lt;p&gt; 12 A 2&gt; body, head truncated straight.............................. &lt;i&gt;Haploops gascogni&lt;/i&gt; Dauvin &amp; Bellan-Santini, 1996&lt;/p&gt; &lt;p&gt; - A 2 =1 / 2 body, head transversely truncated.......................................... &lt;i&gt;Haploops antennata&lt;/i&gt; &lt;b&gt;sp.nov.&lt;/b&gt;&lt;/p&gt; &lt;p&gt; 13 Long setae on Md, back, telson, A1 &lt;A 2.................................... &lt;i&gt;Haploops longiseta&lt;/i&gt; Ka&iuml;m-Malka, 2010&lt;/p&gt; &lt;p&gt; - Few long dorsal setae, A1&gt; A 2.............................................. &lt;i&gt;Haploops proxima&lt;/i&gt; Chevreux, 1919&lt;/p&gt; &lt;p&gt;14 Pereopod 7 basis narrow............................................................................... 15&lt;/p&gt; &lt;p&gt;- Pereopod 7 basis broad................................................................................ 19&lt;/p&gt; &lt;p&gt;15 Uropod 1, rami equal.................................................................................. 16 - Uropod 1, rami unequal................................................................................ 18&lt;/p&gt; &lt;p&gt; 16 Dorsal side of pleon and urosome carinate..................................... &lt;i&gt;Haploops vallifera&lt;/i&gt; Stephensen, 1925&lt;/p&gt; &lt;p&gt;- Dorsal side of pleon and urosome not carinate.............................................................. 17&lt;/p&gt; &lt;p&gt; 17 P7 not elongate, basis lobe reaching longer than ischium............. &lt;i&gt;Haploops antarctica&lt;/i&gt; Bellan-Santini &amp; Dauvin, 2008&lt;/p&gt; &lt;p&gt; - P7 elongate, basis lobe reaching only the end of ischium (male only)............... &lt;i&gt;Haploops abyssorum&lt;/i&gt; Chevreux, 1908&lt;/p&gt; &lt;p&gt; 18 A1 = A 2 Coxa 4 heart-shaped............................................... &lt;i&gt;Haploops similis&lt;/i&gt; Stephensen, 1925&lt;/p&gt; &lt;p&gt; - A1 = A 2 peduncle, coxa 4 not heart shaped......................................... &lt;i&gt;Haploops lodo&lt;/i&gt; Barnard, 1961&lt;/p&gt; &lt;p&gt; 19 Long dorsal tuft of setae (pereon 5&ndash;7 &amp; pleon)....................................... &lt;i&gt;Haploops setosa&lt;/i&gt; Boeck, 1871&lt;/p&gt; &lt;p&gt; - Short dorsal setae on pleon 2&ndash;3 only........................................ &lt;i&gt;Haploops meloi&lt;/i&gt; Valerio-Berardo, 2008&lt;/p&gt;Published as part of &lt;i&gt;Kaim-Malka, R. A., 2012, Haploops antennata, a new species from the North Atlantic Ocean (Crustacea: Gammaridea: Ampeliscidae) [Contribution to the knowledge of the Haploops genus. 7.], pp. 36-46 in Zootaxa 3320 (1)&lt;/i&gt; on pages 45-46, DOI: 10.11646/zootaxa.3320.1.2, &lt;a href="http://zenodo.org/record/5258873"&gt;http://zenodo.org/record/5258873&lt;/a&gt

Haploops antennata, a new species from the North Atlantic Ocean (Crustacea: Gammaridea: Ampeliscidae) [Contribution to the knowledge of the Haploops genus. 7.]

Kaim-Malka, R. A. (2012): Haploops antennata, a new species from the North Atlantic Ocean (Crustacea: Gammaridea: Ampeliscidae) [Contribution to the knowledge of the Haploops genus. 7.]. Zootaxa 3320 (1): 36-46, DOI: 10.11646/zootaxa.3320.1.2, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.3320.1.

Complement to the knowledge of the Haploops species (Crustacea, Gammaridea, Ampeliscidae), with the description of two new species from North Atlantic Ocean. [Contribution to the knowledge of the Haploops genus. 10.]

(IF 1.02; Q2)International audienceTwo new Haploops species are described from the North Atlantic Ocean: a blind species Haploops faroensis spec. nov. and Haploops truncata spec. nov. with a single pair of corneal lenses. In addition, Haploops vallifera Stephensen 1925 and Haploops similis Stephensen 1925, are re-described and the status of Haploops spinosa Shoemaker 1931, is reestablished as a valid species. A table is given of the 75 morphological characters of the studied species

On some Haploops species collected in the North Atlantic Ocean with the description of Haploops islandica n. sp. (Crustacea: Gammaridea: Ampeliscidae) : [Contribution to the knowledge of the Haploops genus. 8.]

International audienceFour Haploops species collected in the North Atlantic Ocean are studied. One of them, H. islandica is a new species for the science. The three other species, H. carinata, H. setosa, H. robusta, were described from a long time, but many con-fusions exist about these species because their morphological nearness. The four species are described and illustrated in detail, and their distribution around the Iceland is specified. A key of the 23 species known nowadays is given permetting to separate the different species of the Haploops genus