323,850 research outputs found
Capitonius venustus Pitz, n. sp.
No full textCapitonius venustus Pitz n. sp. (Figs. 39, 40 A–G) Diagnosis: Distinguishable from other species in the subgenus by having mid tibia rufous. Length: 8.3 mm. Color: body rufous except: flagellomere segments 7–32, apex of mandible, metasomal terga 2–9 melanic; wing yellow basally and lightly infuscate apically (Fig. 40 G). Head (Fig. 40 A–C): antenna with 35 flagellomeres, each with 2–5 rows of longitudinal placodes; vertex smooth with sparse setae; occipital carina with evenly spaced setae over its entirety; lateral carina bordering antennal scrobe complete to lateral ocellus; median lamella of antennal scrobe flattened anteriorly, acute posteriorly; face and clypeus with dense punctures; ventral margin of clypeus with three blunt tubercles. Mesosoma (Fig. 40 D–E): anterior margin of pronotum protruding posteriorly as curl of cuticle; pronotum lightly rugosofoveate anteriorly, crenulate medianly and posteriorly; anterior face of mesoscutum with moderately dense fovea and setae; median lobe of mesoscutum triangular; mesoscutum with large fovea along anterior margin with moderately dense setae, lateral lobe smooth with sparse setae; notauli meeting in anterior half of mesoscutum, with transverse carinae that create large oval and rectangular fovea; transscutal articulation slightly grooved medianly; scutellar disc smooth with moderately dense setae; scutellar sulcus with 4 fovea; propleuron smooth posteriorly, becoming moderately foveate anteriorly, with moderately dense setae; mesopleuron with carinae running perpendicular to epicnemial area, pleural sulcus with few perpendicular carinae, rugose ventrally, otherwise mesopleuron smooth, with moderate setae anteriorly and posteroventrally; sternaulus complete, restricted to single row of ovoid fovea; propodeum irregularly areolate with sparse to moderately dense setae; metapleuron irregularly areolate with sparse to moderately dense setae; hind coxa with distinct groove or depression on median face; sharp carina of anterior border on hind coxal groove present; tarsal claw with basal lobe absent. Metasoma (Fig. 40 F): t 1 with dorsal carinae extending from base over one-third of length, otherwise smooth; t 4 –t 7 with dense, small pits posteroventrally near spiracles; first valvula of ovipositor with serrations apically; second valvula lacking subapical serration; ratio of length:width of t 1 1.4; ratio of ovipositor:forewing 1.3; ratio of M+CU: 1 M vein of hind wing 2.5. Variation: antenna with 36–38 flagellomeres. Biology: unknown. Male: unknown. Etymology: from Latin venustus meaning like Venus, lovely, beautiful, elegant, or graceful, named in honor of my wife, Kristina Pitz, and for the beauty of this species. Material examined: Holotype. Ψ COLOMBIA Putumayo PNN La Paya Finca Charapa 0º 8 ’S 74 º 57 ’ W 330m Malaise 1–15.x. 2001 R.Cobete, leg. M. 2442 (IAvH). Paratypes. 1 Ψ PERU: Loreto, Pucallpa. 26.ix. 1954, J.M. Schunke, B.M. 1961 - 64 (BMNH); 1 Ψ LETICIA, Amazonas, Colombia, 700 ft, [2125m], Feb. 23 –Mar. 2 / 74, H. & A. Howden (AEIC); 1 Ψ COLOMBIA Amazonas, PNN Amaycayacu Matamata 3 º 23 ’S 70 º 06’W 150m Mar 12 –Mar 19 / 2000 M. 87 A. Parente Leg (IaVH); 1 Ψ COLOMBIA-Chocó, PNN Utria, 4.v. 2000, Red, D. Campos, c 14 (HIC); 1 Ψ PERU Huanuco, vic. Tingo Maria, 1–5 June 1999, W. Hanson S. Keller (EMUS); 1 Ψ BRAZIL Rondonia, 62km SE Ariquemes, 1–14 Nov. 1997, B. Dozier (EMUS); 1 Ψ BRAZIL Rondonia, 62km SE Ariquemes, 7– 18 Nov. 1995, W.J. Hanson (EMUS); 9 Ψ BRAZIL Rondonia, 62km SE Ariquemes, 8–20 Nov. 1994, W.J. Hanson (AEIC 4, CNCI 2, EMUS 3).Published as part of Pitz, Kevin M., 2010, New taxonomic status of Foenomorpha Szépligeti as a subgenus of Capitonius Brullé (Hymenoptera: Braconidae: Cenocoeliinae) including a revision of species, pp. 1-54 in Zootaxa 2607 on pages 50-52, DOI: 10.5281/zenodo.27599
On the development of the “PITZ-Robot” for use at the FLASHlab@PITZ experimental area
No full text1. Background and AimsThe 22 MeV PITZ accelerator at DESY-Zeuthen is well-suited for FLASH-RT research, a novel cancer treatment technique, due to its wide parameter range. Adjustable factors such as the number of RF pulses, micropulses, micro pulse charge, RF repetition rate, and beam size allow for dose rates from 0.05 Gy/s to 107 Gy/s. The full FLASHlab@PITZ beamline, currently under installation, includes a second dipole, quadrupoles, vertical and horizontal kickers, and advanced diagnostics. The PITZ-Robot, a customized version of the CLEAR-Robot (C-Robot), is part of the upgrade package. This work reports the development of the “PITZ-Robot”.2. Methods Building on the lessons learned from commissioning the C-Robot in the FLASHlab@PITZ startup beamline, the PITZ-Robot has been designed and developed to provide precise positioning for sample irradiation, achieving 50 µm accuracy across three axes. A custom-designed 3D-printed holder, equipped with a YAG screen and a 45⁰ mirror, serves as a beam tracker and provides real-time positioning feedback with the CCD camera attached to the robotic arm. Additionally, the original MATLAB script has been adapted to allow for fine-tuning of the irradiation positioning. 3. Results Hardware design and software updates enhanced beam positioning accuracy at FLASHlab@PITZ. The PITZ-Robot has been installed on the new beamline, and its commissioning is ongoing to ensure consistent beam alignment and reliable dosimetry, crucial for experiments on the FLASH effect in radiation therapy.4. Conclusion The open-source C-Robot gave insights for the development of the PITZ-Robot. The “PITZ-Robot” is part of the upgrade package of the FLASHlab@PITZ, becoming the main tool for sample manipulation during irradiations and dosimetry methods R&D
Capitonius stramentosura Pitz, n. sp.
No full textCapitonius stramentosura Pitz n. sp. (Figs. 35, 36 A–G) Diagnosis: Distinguishable from other species in the subgenus by the following combination of characters: head rufous and lacking dense, small pits posteroventrally near spiracles on t 4 –t 7. Length: 8.7 mm. Color: body melanic except: fore tibia, fore tarsus except apical tarsomere, and apex of ovipositor sheath testaceous; head, except margin around mandible and clypeus tan; wings slightly infuscate (Fig. 36 G). Head (Fig. 36 A–C): antenna with 38 flagellomeres, each with 2–5 rows of longitudinal placodes; vertex with sparse and weak punctures and weak setation laterally; occipital carina with evenly spaced setae over its entirety; lateral carina bordering antennal scrobe incomplete; median lamella of antennal scrobe flattened anteriorly, acute posteriorly; face and clypeus with dense punctures; ventral margin of clypeus with three blunt tubercles. Mesosoma (Fig. 36 D–E): anterior margin of pronotum protruding posteriorly as curl of cuticle; pronotum rugosopunctate anteriorly, crenulate medianly and posteriorly; anterior face of mesoscutum punctate to foveate with moderately dense setae; median lobe of mesoscutum triangular; mesoscutum mostly smooth, with moderately dense setae evenly over lateral edges, anterior margin of median lobe carinate laterally and foveate medianly, lateral margins smooth, lateral lobe smooth with fovea and sparse setae laterally; notauli meeting in anterior half of mesoscutum, with transverse carinae that create large oval and rectangular fovea; transscutal articulation not grooved; scutellar disc with moderate weak punctures, with moderately dense long setae; scutellar sulcus with 9 fovea; propleuron with moderate punctation and setae ventrally, becoming foveate dorsally; mesopleuron with carinae running perpendicular to epicnemial area and pleural sulcus with perpendicular carinae ventrally, otherwise mesopleuron smooth with few fovea, with dense setae on anterior margin and on posterior margin ventrally, otherwise with sparse setae; sternaulus complete, restricted to single row of ovoid fovea; propodeum irregularly areolate, with moderately dense to dense setae; metapleuron irregularly areolate with sparse to moderate setae ventrally; hind coxa lacking distinct groove or depression on median face; tarsal claw with basal lobe absent. Metasoma (Fig. 36 F): t 1 smooth; t 4 –t 7 lacking dense, small pits posteroventrally near spiracles; first valvula of ovipositor with serrations apically; second valvula lacking subapical serration; ratio of length:width of t 1 2.8; ratio of ovipositor:forewing 2.2; ratio of M+CU: 1 M vein of hind wing 2.5. Variation: some specimens with 33 flagellomeres and smooth median lobe of mesoscutum. Notes: pinned through mesosoma. Biology: unknown. Male: unknown. Etymology: from the Latin stramentum meaning ivory and sura meaning calf of the leg for the testaceous colored fore tibia. Material examined: Holotype. Ψ BRAZIL: Para Faz. Taperomha XI- 19–1969 JM & BA Campbell (CNCI). Paratypes. 1 Ψ PERU: Loreto, Pucalipa. 29.xi. 1960 J.M. Schunke B.M. 1961 – 64 (BMNH); 1 Ψ COLOMBIA Putumayo PNN La Paya Cabaña La Paya 0º 2 ’S 75 º 12 ’ W 330m Malaise 20.xi– 5.xii. 2001 E.Lozano, leg. M. 2798 (IAvH).Published as part of Pitz, Kevin M., 2010, New taxonomic status of Foenomorpha Szépligeti as a subgenus of Capitonius Brullé (Hymenoptera: Braconidae: Cenocoeliinae) including a revision of species, pp. 1-54 in Zootaxa 2607 on pages 45-48, DOI: 10.5281/zenodo.27599
Dosimetry Tests for FLASH RT at PITZ
No full textThe Photo Injector Test facility at DESY in Zeuthen (PITZ) can provide unique beam parameters regarding delivered dose and dose rate. With an average dose rate of up to Gy/s and peak dose rates of up to Gy/s, PITZ is fully capable of FLASH radiation therapy. Nevertheless, dosimetry is a major challenge. Traditional detectors cannot provide reliable measurements and linearity up to such high dose rates. A new setup is being built to create a test infrastructure for all kinds of detectors. This includes a completely new beamline exclusively for FLASH RT and biology experiments. The goal is to develop and test detectors (also from external users) which cover the whole range of dose rates available at PITZ. First dosimetry experiments using Gafchromic films were done in air and water. Dose rate linearity and a limit test of the films were done. Beam parameters like beam profile, dose depth profile in water, homogeneity and dark current were measured. First detector tests will be done using silicon sensors utilized in high energy physics experiments
Classification, Natural History, and Evolution of the Subfamily Peloniinae O (Coleoptera: Cleroidea: Cleridae). Part IX. Taxonomic revision of the New World genus Muisca S
No full textOpitz, Pitz Pinola Weston (2018): Classification, Natural History, and Evolution of the Subfamily Peloniinae O (Coleoptera: Cleroidea: Cleridae). Part IX. Taxonomic revision of the New World genus Muisca S. Linzer biologische Beiträge 50 (1): 587-653, DOI: http://doi.org/10.5281/zenodo.400428
Fig. 92 in Classification, Natural History, and Evolution of the Subfamily Peloniinae O (Coleoptera: Cleroidea: Cleridae). Part IX. Taxonomic revision of the New World genus Muisca S
No full textFig. 92: Proposed phylogeny of Muisca species groups.Published as part of Opitz, Pitz Pinola Weston, 2018, Classification, Natural History, and Evolution of the Subfamily Peloniinae O (Coleoptera: Cleroidea: Cleridae). Part IX. Taxonomic revision of the New World genus Muisca S, pp. 587-653 in Linzer biologische Beiträge 50 (1) on page 629, DOI: 10.5281/zenodo.400428
Recent developments at PITZ
No full textThe ability to produce high brightness electron beams as required for modern Free Electron Lasers (FELs) has been demonstrated during the first stage of the Photo Injector Test Facility at DESY Zeuthen (PITZ1). The electron source optimization at PITZ1 was successfully completed, resulting in the installation of the PITZ rf gun at the VUV-FEL (DESY, Hamburg). One of the main goals of the second stage of PITZ (PITZ2) is to apply higher gradients in the rf gun cavity in order to obtain smaller beam emittance by faster acceleration of the space charge dominated beams. In order to reach the required gradients a 10 MW klystron has to be installed and the gun cavity has to be conditioned for higher peak power. Another important goal of PITZ2 is a detailed study of the emittance conservation principle by using proper electron beam acceleration with a booster. Further photo injector optimization, including update of the photocathode laser and diagnostic tools, is foreseen as well. Recent progress on the PITZ developments will be reported
FLASHlab@PITZ Beamline Upgrade towards Full Functionality – Status and Plans
No full textAt the Photo Injector Test facility at DESY in Zeuthen (PITZ), an R&D platform for electron FLASH cancer radiation therapy and r adiation biology isbeing prepared: FLASHlab@PITZ . The design of the full beamline with optimized beam properties was finished; the setup is currently beingfinalized and the mechanical design and manufacturing is underway. The beamline runs in parallel to the SASE THz beamline at PIT Z and isconnected to it with a dogleg. Beam dynamics simulations were conducted to assure excellent beam quality at the experimental are a. A fast kickersystem will be installed which is capable of distributing electron bunches from a single bunch train freely over an area of 2 5 m m x 25 mm withinone microsecond. When the full FLASHlab@PITZ beamline is ready in 2024, the accelerator will deliver 22 MeV electrons to generate dose ratesfrom 0.01 Gy /s up to 10 14 Gy /s to an experimental area, which can accommodate a variety of setups for irradiation studies. The flexiblearrangement of the experimental area will make it possible for external users to collaborate with PITZ and conduct experiment s w ith existing ornewly designed irradiation setups
Epsilogaster fullertoni Pitz, 2004, n. sp.
No full textEpsilogaster fullertoni n. sp. Etymology — named in honor of Stuart Fullerton, for his enthusiastic development of the “Bug Closet” insect collection at the University of Central Florida.. Description — Holotype female (Figure 2) Length: 1.95mm. Color: light yellowish brown except brown as follows: pedicel laterally and posteriorly; flagellomeres, interocellar area, apex of teeth of mandibles, forewing veins, metasomal tergita 4–7, tarsal claws, ovipositor sheaths. Eyes silver. Wings hyaline. Head: head height/compound eye height = 1.39; head height/compound eye length = 3.00; length of first flagellomere = 0.16 mm; length of first flagellomere/width of first flagellomere = 3.45; length of first flagellomere/ length of second flagellomere = 1.27; length of first flagellomere/ length of third flagellomere = 1.35; length of apical flagellomere/ width of apical flagellomere = 2.90; intertentorial pit distance = 0.13 mm; ocelloocular distance = 0.13; distance between antennal insertion and anterior tentorial pit = 0.20; width of face at dorsal edge of clypeus = 0.49; antenna with 25 flagellomeres; face weakly rugose with sparse punctures and setation; eyes with dense setation; vertex, gena and occiput with moderately dense punctures and setation, ocelli forming an equilateral triangle. Mesosoma: mesosomal length/mesosomal width = 1.81; mesosomal height = 0.54 mm; hind tibial length/maximal width of hind tibia = 6.17; propleuron mostly smooth with sparse punctures and setation; pronotum with three large punctures anteromedially, otherwise smooth medially, with longitudinal carinae extending dorsally to ventrally becoming weaker ventrally; mesopleuron mostly smooth, with sparse setation dorsad sternaulus and moderately dense setation ventrad sternalus, sternaulus composed of regular large fovea, running diagonally from midpoint of ventral margin to midpoint of anterior margin of mesopleuron, subalar space mostly smooth with sparse punctures and setation; mesonotum smooth with moderately dense evenly distributed punctures and setae, notaulus composed of regular fovea; scutelluar sulcus with 6 longitudinal carinae, scutellum subtriangular, smooth with sparse punctures and setation; metapleuron mostly smooth with sparse punctures and setation; metanotum with two subcircular pits anteromedially, axillary troughs with three incomplete longitudinal carinae, otherwise smooth; propodeum with two longitudinal submedial subparallel carinae that join anteromedially, propodeum with two longitudinal lateral carinae on each side, many irregular lateral carinae that cross more distinct longitudinal carinae forming areolae. Wings (Figure 1 C): forewing length = 2.01 mm; 3 RSb barely indicated, rm crossvein present but not tubular. Metasoma: basal width of median tergite of the first metasomal segment/apical width of median tergite of the first metasomal segment = 1.38; length of median tergite of the first metasomal segment/apical width of median tergite of the first metasomal segment = 2.74; hypopygium length = 0.33 mm; ovipositor length/hind tibial length = 1.05; first metasomal tergite with dorsolateral longitudinal carinae extending from anterior edge approximately threefourths of the length of tergite (Figure 1 A), area between dorsolateral carinae smooth to just posterad spiracles, weakly rugose to just anterad the smooth apex, sublaterally with longitudinal carinae extending over entire length, short lateral carinae running from sublateral carinae to lateral edge creating large fovea/areolae posterad spiracles, spiracles protruding on flangelike extensions; median tergite 2 with middle arm of Eshaped sclerotization extending into posterior half of tergite but ending before posterior margin of tergite (Figure 1 B), Eshaped sclerotization smooth, remainder of second median tergite weakly sclerotized, with sparse setation; median tergite 3 with sparse setation, without apparent sclerotization medially and posterad middle arm of Eshaped sclerotization on T 2. Variation — paratype female; antenna with 24 flagellomeres Biology — Unknown Male — Unknown. Material Examined — Holotype female: UCF, FL. Orange Co. Orlando, X 191999, Malaise Trap. Deposited in the American Entomological Institute. Second label: Pine Pond Comm[unity] Dahoon Holly (S), P. Russel, T. Smith, S. Fullerton. Third label: UCFC 0 0 49 658. Paratype female: FLORIDA, Orange Co. Walt Disney World, 1017 July 1997, Z. Prusak, S. Fullerton. Deposited in the Florida State Collection of Arthropods. Second label: MW 7 (unburned) S 22 T 24 S R 27 E, Sand Pine/Oak Scrub, Malaise Trap.Published as part of Pitz, Kevin M., 2004, Epsilogaster fullertoni, a new species of Epsilogaster Whitfield and Mason (Hymenoptera: Braconidae: Mendesellinae) from Florida, USA, pp. 1-7 in Zootaxa 716 on pages 4-5, DOI: 10.5281/zenodo.15829
FLASHlab@PITZ: New R&D platform with unique capabilities for electron FLASH and VHEE radiation therapy and radiation biology under preparation at PITZ.
No full textAt the Photo Injector Test facility at DESY in Zeuthen (PITZ), an R&D platform for electron FLASH and very high energy electron radiation therapy and radiation biology is being prepared (FLASHlab@PITZ). The beam parameters available at PITZ are worldwide unique. They are based on experiences from 20 + years of developing high brightness beam sources and an ultra-intensive THz light source demonstrator for ps scale electron bunches with up to 5 nC bunch charge at MHz repetition rate in bunch trains of up to 1 ms length, currently 22 MeV (upgrade to 250 MeV planned). Individual bunches can provide peak dose rates up to 10 14 Gy/s, and 10 Gy can be delivered within picoseconds. Upon demand, each bunch of the bunch train can be guided to a different transverse location, so that either a "painting" with micro beams (comparable to pencil beam scanning in proton therapy) or a cumulative increase of absorbed dose, using a wide beam distribution, can be realized at the tumor. Full tumor treatment can hence be completed within 1 ms, mitigating organ movement issues. With extremely flexible beam manipulation capabilities, FLASHlab@PITZ will cover the current parameter range of successfully demonstrated FLASH effects and extend the parameter range towards yet unexploited short treatment times and high dose rates. A summary of the plans for FLASHlab@PITZ and the status of its realization will be presented
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